Nabble - IKVM .NET - Dev

Re: setting information into the JVM

2009-11-26T11:53:34Z

Hi,

What do you want to do?

Do you want run a Java program that can also access .NET libraries? In this case you can set it at compile time. You can look in the wiki which currently is down. http://sourceforge.net/apps/mediawiki/ikvm/index.php?title=Main_Page

Do you want run a .NET program that can also access Java libraries? In this case you can add the references to your build of the .NET application. Of corse .NET can also load libraries dynamicly. But this is not IKVM specific and not aquestion for this forum.

Volker

Von: Mekmal, Ofer [mailto:ofer.mekmal@...]
Gesendet: Donnerstag, 26. November 2009 09:02
An: ikvm-developers@...
Betreff: [Ikvm-developers] setting information into the JVM

Hi,

I’m using the IKVMC to create a static .net DLL from my jar file.

The process is easy and I get to load the DLL and work with it.

My question: how do I send information to the virtual JVM like classpath?

Thanks,

Ofer Mekmal

R&D Team Lead, SOA Quality, HP Software

19 Shabazi St. POB 170

Yehud 56100, Israel

voice: +972-3-5399467 fax: +972-3-5331617

cellular: +972-54-6811182

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setting information into the JVM

2009-11-26T00:01:41Z

Hi,

I’m using the IKVMC to create a static .net DLL from my jar file.

The process is easy and I get to load the DLL and work with it.

My question: how do I send information to the virtual JVM like classpath?

Thanks,

Ofer Mekmal

R&D Team Lead, SOA Quality, HP Software

19 Shabazi St. POB 170

Yehud 56100, Israel

voice: +972-3-5399467 fax: +972-3-5331617

cellular: +972-54-6811182

Re: Changing properties of the JVM and other options

2009-11-23T08:59:17Z

The AWT and Swing API is already very good in the current HEAD version. Only the printing API is under construction. If this is finsh then we can support officially AWT and Swing.

Volker

Von: Corneil du Plessis [mailto:corneil@...]
Gesendet: Montag, 23. November 2009 12:50
An: Mekmal, Ofer; ikvm-developers
Betreff: Re: [Ikvm-developers] Changing properties of the JVM and other options

IKVM allows you to execute Java compiled code in the .Net or Mono environment.
You can compile jars to dlls or you can launch an existing jar using the ivkm launcher.
In order to provide the Java code with the methods from the JRE that you rely on OpenJDK 6 has been packaged as dlls

If you don't use AWT or Swing you can expect you application to work unless you do very strange things with the class loader.
Even Spring Framework generating dynamic proxies and Drools generating java code works fine.

On Sun, 2009-11-22 at 23:09 +0000, Mekmal, Ofer wrote:
Hi Volker and thank you for the prompt answer.

According to the web site, the 1.6 version is not completed yet, which is in oppose to what you, unless I misunderstood. Is the version compliant with Sun’s JVM 1.6 available already?

As for replacing the JVM, we are aware that IKVM is an open source, however some of customers insist on using a specific JVM (like IBM’s) and we need to support that

Again, thanks a lot,

Ofer

From: Volker Berlin [mailto:volker.berlin@...]
Sent: Sunday, November 22, 2009 7:53 PM
To: ikvm-developers@...
Subject: Re: [Ikvm-developers] Changing properties of the JVM and other options

Hi,

1.       What is the Sun’s JVM version compliance? Is it 1.4 or higher? This is our top priority issue

The current version of IKVM based on OpenJDK 6 that it is compilance to version 1.6.

2.       We need to define the heap size (-Xmx) and debugging (-Xdebug) – is it possible?

The .Net heap will grow, as needed, to consume all available memory. There's no need to manually adjust it.

A Java debug interface was started but not finish yet. It can be in 1-2 years possible if never work on it before. Currently you can only debug with a .NET debugger like Visual Studio.

3.       Is it possible to change the JVM? Is there an API for that?

What do you means? I am not understand you. You can modfiy IKVM. It is open source.

Volker

Von: Mekmal, Ofer [mailto:ofer.mekmal@...]
Gesendet: Sonntag, 22. November 2009 17:58
An: ikvm-developers@...
Betreff: [Ikvm-developers] Changing properties of the JVM and other options

Hi All,

We (HP Software, SOA Quality group) examined the capability of converting the java jars to .net dlls and the functionality suits us well and we would like to use it.

However, we have some requirements/questions:

1.      What is the Sun’s JVM version compliance? Is it 1.4 or higher? This is our top priority issue

2.      We need to define the heap size (-Xmx) and debugging (-Xdebug) – is it possible?

3.      Is it possible to change the JVM? Is there an API for that?

Thanks,

Ofer Mekmal

R&D Team Lead, SOA Quality, HP Software

19 Shabazi St. POB 170

Yehud 56100, Israel

voice: +972-3-5399467 fax: +972-3-5331617

cellular: +972-54-6811182
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Re: Changing properties of the JVM and other options

2009-11-23T03:50:17Z

IKVM allows you to execute Java compiled code in the .Net or Mono environment.
You can compile jars to dlls or you can launch an existing jar using the ivkm launcher.
In order to provide the Java code with the methods from the JRE that you rely on OpenJDK 6 has been packaged as dlls

If you don't use AWT or Swing you can expect you application to work unless you do very strange things with the class loader.
Even Spring Framework generating dynamic proxies and Drools generating java code works fine.

On Sun, 2009-11-22 at 23:09 +0000, Mekmal, Ofer wrote:

Hi Volker and thank you for the prompt answer.

According to the web site, the 1.6 version is not completed yet, which is in oppose to what you, unless I misunderstood. Is the version compliant with Sun’s JVM 1.6 available already?

As for replacing the JVM, we are aware that IKVM is an open source, however some of customers insist on using a specific JVM (like IBM’s) and we need to support that

Again, thanks a lot,

Ofer

From: Volker Berlin [mailto:volker.berlin@...]
Sent: Sunday, November 22, 2009 7:53 PM
To: ikvm-developers@...
Subject: Re: [Ikvm-developers] Changing properties of the JVM and other options

Hi,

1.       What is the Sun’s JVM version compliance? Is it 1.4 or higher? This is our top priority issue

The current version of IKVM based on OpenJDK 6 that it is compilance to version 1.6.

2.       We need to define the heap size (-Xmx) and debugging (-Xdebug) – is it possible?

The .Net heap will grow, as needed, to consume all available memory. There's no need to manually adjust it.

A Java debug interface was started but not finish yet. It can be in 1-2 years possible if never work on it before. Currently you can only debug with a .NET debugger like Visual Studio.

3.       Is it possible to change the JVM? Is there an API for that?

What do you means? I am not understand you. You can modfiy IKVM. It is open source.

Volker

Von: Mekmal, Ofer [mailto:ofer.mekmal@...]
Gesendet: Sonntag, 22. November 2009 17:58
An: ikvm-developers@...
Betreff: [Ikvm-developers] Changing properties of the JVM and other options

Hi All,

We (HP Software, SOA Quality group) examined the capability of converting the java jars to .net dlls and the functionality suits us well and we would like to use it.

However, we have some requirements/questions:

1.      What is the Sun’s JVM version compliance? Is it 1.4 or higher? This is our top priority issue

2.      We need to define the heap size (-Xmx) and debugging (-Xdebug) – is it possible?

3.      Is it possible to change the JVM? Is there an API for that?

Thanks,

Ofer Mekmal

R&D Team Lead, SOA Quality, HP Software

19 Shabazi St. POB 170

Yehud 56100, Israel

voice: +972-3-5399467 fax: +972-3-5331617

cellular: +972-54-6811182

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Re: Changing properties of the JVM and other options

2009-11-22T15:09:08Z

Hi Volker and thank you for the prompt answer.

According to the web site, the 1.6 version is not completed yet, which is in oppose to what you, unless I misunderstood. Is the version compliant with Sun’s JVM 1.6 available already?

As for replacing the JVM, we are aware that IKVM is an open source, however some of customers insist on using a specific JVM (like IBM’s) and we need to support that

Again, thanks a lot,

Ofer

From: Volker Berlin [mailto:volker.berlin@...]
Sent: Sunday, November 22, 2009 7:53 PM
To: ikvm-developers@...
Subject: Re: [Ikvm-developers] Changing properties of the JVM and other options

Hi,

1. What is the Sun’s JVM version compliance? Is it 1.4 or higher? This is our top priority issue

The current version of IKVM based on OpenJDK 6 that it is compilance to version 1.6.

2. We need to define the heap size (-Xmx) and debugging (-Xdebug) – is it possible?

The .Net heap will grow, as needed, to consume all available memory. There's no need to manually adjust it.

A Java debug interface was started but not finish yet. It can be in 1-2 years possible if never work on it before. Currently you can only debug with a .NET debugger like Visual Studio.

3. Is it possible to change the JVM? Is there an API for that?

What do you means? I am not understand you. You can modfiy IKVM. It is open source.

Volker

Von: Mekmal, Ofer [mailto:ofer.mekmal@...]
Gesendet: Sonntag, 22. November 2009 17:58
An: ikvm-developers@...
Betreff: [Ikvm-developers] Changing properties of the JVM and other options

Hi All,

We (HP Software, SOA Quality group) examined the capability of converting the java jars to .net dlls and the functionality suits us well and we would like to use it.

However, we have some requirements/questions:

1.       What is the Sun’s JVM version compliance? Is it 1.4 or higher? This is our top priority issue

2.       We need to define the heap size (-Xmx) and debugging (-Xdebug) – is it possible?

3.       Is it possible to change the JVM? Is there an API for that?

Thanks,

Ofer Mekmal

R&D Team Lead, SOA Quality, HP Software

19 Shabazi St. POB 170

Yehud 56100, Israel

voice: +972-3-5399467 fax: +972-3-5331617

cellular: +972-54-6811182

Changing properties of the JVM and other options

2009-11-22T08:57:55Z

Hi All,

We (HP Software, SOA Quality group) examined the capability of converting the java jars to .net dlls and the functionality suits us well and we would like to use it.

However, we have some requirements/questions:

1. What is the Sun’s JVM version compliance? Is it 1.4 or higher? This is our top priority issue

2. We need to define the heap size (-Xmx) and debugging (-Xdebug) – is it possible?

3. Is it possible to change the JVM? Is there an API for that?

Thanks,

Ofer Mekmal

R&D Team Lead, SOA Quality, HP Software

19 Shabazi St. POB 170

Yehud 56100, Israel

voice: +972-3-5399467 fax: +972-3-5331617

cellular: +972-54-6811182

Re: NoClassDefFoundError forcli.System.Objectwhenrunninng Java code that refers .Net dll

2009-11-21T20:36:44Z

Hi Volker,
Thanks, you solved the issue!! My other .Net project also has ICSharpCode.SharpZipLib.dll and I have accidentally copied the ICSharpCode.SharpZipLib.dll to the ikvmc folder.
Thanks for helping me to figure it out, and sorry for the trouble caused.

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Re: NoClassDefFoundError forcli.System.Objectwhenrunninng Java code that refers .Net dll

2009-11-20T05:56:46Z

I have no idea. Can it be that your dll's in reference also the ICSharpCode.SharpZipLib.dll library? Can it be that you have another version of the dll in temp directory. I think first you should bild a hello world sample and make it complexer to see where the problem is.

Volker

Von: surangika ranathunga [mailto:lady_radsu@...]
Gesendet: Freitag, 20. November 2009 02:48
An: ikvm-developers@...
Betreff: Re: [Ikvm-developers] NoClassDefFoundError forcli.System.Objectwhenrunninng Java code that refers .Net dll

Hi Volker,
yes, ICSharpCode.SharpZipLib.dll is in the directory D:\PhD Work\Research\ikvm\ikvmbin-0.40.0.1\ikvm-0.40.0.1\bin.

Surangika

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Re: NoClassDefFoundError for cli.System.Objectwhenrunninng Java code that refers .Net dll

2009-11-19T17:47:32Z

Hi Volker,
yes, ICSharpCode.SharpZipLib.dll is in the directory D:\PhD Work\Research\ikvm\ikvmbin-0.40.0.1\ikvm-0.40.0.1\bin.

Surangika

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Re: NoClassDefFoundError for cli.System.Objectwhenrunninng Java code that refers .Net dll

2009-11-19T01:54:35Z

Hi,

Do you have also the file ICSharpCode.SharpZipLib.dll in your directory D:\PhD Work\Research\ikvm\ikvmbin-0.40.0.1\ikvm-0.40.0.1\bin.

Volker

Von: surangika ranathunga [mailto:lady_radsu@...]
Gesendet: Donnerstag, 19. November 2009 04:22
An: ikvm-developers@...
Betreff: Re: [Ikvm-developers] NoClassDefFoundError for cli.System.Objectwhenrunninng Java code that refers .Net dll

Hi Volker,
Thanks for your explanation. Now I'm trying to compile my code using ikvmc, but still I am getting errors.
This is the command I typed:
D:\PhD Work\Research\ikvm\ikvmbin-0.40.0.1\ikvm-0.40.0.1\bin>ikvmc -r:C:\Tmp\*.dll Bot.class

'D:\PhD Work\Research\ikvm\ikvmbin-0.40.0.1\ikvm-0.40.0.1\bin' is where my ikvmc.exe is. The class files that I want to get compiled are also inside this folder. Generated jar files are not inside this folder.

' -r:C:\Tmp\*.dll' refers to the .Net libraries that I used in my Java code.
Bot.class is the class that I am trying to compile.

But now I am getting the following error:
Unhandled Exception: System.IO.FileLoadException: Could not load file or assembl
y 'ICSharpCode.SharpZipLib, Version=0.84.0.0, Culture=neutral, PublicKeyToken=1b
03e6acf1164f73' or one of its dependencies. The located assembly's manifest defi
nition does not match the assembly reference. (Exception from HRESULT: 0x8013104
0)
File name: 'ICSharpCode.SharpZipLib, Version=0.84.0.0, Culture=neutral, PublicKe
yToken=1b03e6acf1164f73'
   at IkvmcCompiler.ProcessFile(DirectoryInfo baseDir, String file)
   at IkvmcCompiler.ContinueParseCommandLine(IEnumerator`1 arglist, List`1 targe
ts, CompilerOptions options)
   at IkvmcCompiler.ParseCommandLine(IEnumerator`1 arglist, List`1 targets)
   at IkvmcCompiler.Main(String[] args)

Please let me know whether this is due to something I did.
Thanks in advance.
Surangika

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Re: NoClassDefFoundError for cli.System.Object whenrunninng Java code that refers .Net dll

2009-11-18T19:22:29Z

Re: NoClassDefFoundError for cli.System.Object whenrunninng Java code that refers .Net dll

2009-11-18T01:37:26Z

Hi,

IKVM make it possible to run Java code inside from .NET. You can't use .NET libraries inside from Java.

You can develop a Java application in Eclipse which use .NET libraries. But you need to run it with IKVM or convert your project with IKVMC to a exe file.

IKVM is a Java VM for .NET and not a .NET runtime for Java.

Volker

Von: surangika ranathunga [mailto:lady_radsu@...]
Gesendet: Mittwoch, 18. November 2009 02:57
An: ikvm-developers@...
Betreff: [Ikvm-developers] NoClassDefFoundError for cli.System.Object whenrunninng Java code that refers .Net dll

started using ikvm very recently. I am using the latest binary distribution. I am trying to use a set of C# .Net libraries in my java code (using java code in .Net is not possible due to some restrictions). this C# library is an open-source one and is not developed by me.
In order to get the .Net library functionality into Java, this is what I did, following the given guidelines.

1) Added the ikvmc/bin path to the class path
2) Copied the .Net dll's to the folder where ikvmstub.exe was and generated the jar files
3) Added these jars to my eclipse java project and was able to reference the .Net classes from the Java code
4) java compilation was also successful

But when I try to run this project in java, I get the following exception:

Exception in thread "main" java.lang.NoClassDefFoundError: cli/System/Object
   at java.lang.ClassLoader.defineClass1(Native Method)
   at java.lang.ClassLoader.defineClass(Unknown Source)
   at java.security.SecureClassLoader.defineClass(Unknown Source)
   at java.net.URLClassLoader.defineClass(Unknown Source)
   at java.net.URLClassLoader.access$000(Unknown Source)
   at java.net.URLClassLoader$1.run(Unknown Source)
   at java.security.AccessController.doPrivileged(Native Method)
   at java.net.URLClassLoader.findClass(Unknown Source)
   at java.lang.ClassLoader.loadClass(Unknown Source)
   at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
   at java.lang.ClassLoader.loadClass(Unknown Source)
   at java.lang.ClassLoader.loadClassInternal(Unknown Source)
   at FirstBot.Bot.<init>(Bot.java:18)
   at FirstBot.TestBot.main(TestBot.java:10)
Caused by: java.lang.ClassNotFoundException: cli.System.Object
   at java.net.URLClassLoader$1.run(Unknown Source)
   at java.security.AccessController.doPrivileged(Native Method)
   at java.net.URLClassLoader.findClass(Unknown Source)
   at java.lang.ClassLoader.loadClass(Unknown Source)
   at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
   at java.lang.ClassLoader.loadClass(Unknown Source)
   at java.lang.ClassLoader.loadClassInternal(Unknown Source)

Seems like it cannot find cli.System.object class. Please try to see what I might have done wrong.I assume that this is a very generic error?

On the other hand, the tutorial does not contain anything about running the project in Java, so I am wondering whether what I am trying to is not something that is possible at all, or whether I have taken a wrong approach??

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NoClassDefFoundError for cli.System.Object when runninng Java code that refers .Net dll

2009-11-17T17:56:44Z

Re: Stream of a process does not seam to be correctlyredirected

2009-11-13T13:50:38Z

Hi Markus,

After looking deeper in the problem I have some results but not a solution. I hope this help you to find a solution. The command line from Java VM and from IKVM are different. The Java VM use shared memory and IKVM used a socket listener. The command lines look like:

C:/Programme/Java/jre6\bin\java -Xdebug -Xrunjdwp:transport=dt_shmem,address=javadebug59541,suspend=y main.Test

C:/Programme/Java/jre6\bin\java -Xdebug -Xrunjdwp:transport=dt_socket,address=myComputer:2330,suspend=y main.Test

You can test the socket listener with Java if you remove the class com.sun.tools.jdi.SharedMemoryTransportService. After I have adding some debug code I have in Eclipse the same problem with Java. That I think there is also a timimg problem. If you call read() instead of available() then you receive the output from the process also in IKVM.

In the .NET documenation http://msdn.microsoft.com/en-us/library/system.io.filestream.canseek%28VS.80%29.aspx you can read that a FileStream from a Console does not support CanSeek. That it is not possible to calc an available. Are you sure that this has work with Runtime.exec? This API use also Runtime.exec which you see on the stacktrace if you use an invalid path. I have not test it self.

Volker

Von: Markus Bischof [mailto:markusbischof82@...]
Gesendet: Dienstag, 10. November 2009 21:23
An: Volker Berlin
Betreff: Re: [Ikvm-developers] Stream of a process does not seam to be correctlyredirected

Hi Volker,

I've added my output from the conversion. You see that I'm calling

ikvmc -target:library DebuggingInterface.jar tools.jar

and that I first get some "missing class" warnings. At the end I get many warnings that classes are skipped.

I don't know it these warnings are related to my problem that I cannot read the inputstream of the process.

Please notice that I've implemented a small java program which starts a process (e.g. Runtime.getRuntime.exec(...java.exe)) and reads out the inputstream of this process (printing out the usage of java...). This small program converted to .NET works fine...looking at the code which reads out the stream, it looks exactly like the code which tries to read out the inputstream in my sample program. The only difference is that I do not start the process by myself. I'm really very confused how to investigate this problem by myself...

Is there any information I can provide you to get a better understanding of my problem? If you have the time, maybe you can try to run my sample program in eclipse as well as use ikvm to convert the file and run it with .NET to reconstruct the problem...

Your help is much appreciated!

Regards,

Markus

Re: Bridging from java Class objects to .NET Type objects

2009-11-13T08:33:02Z

Hi Antoine,

Do you mean from C# or VB? In that case you can simply call GetType() on it (even though Intellisense won't show it, it is there).

If you want to do it in Java, you can use:

ikvm.runtime.Util.getInstanceTypeFromClass(obj.getClass())

(to get access to ikvm.runtime.Util you need to run "ikvmstub -shared ikvm.openjdk.core" and add the resulting jar to your classpath)

Regards,
Jeroen

> -----Original Message-----
> From: Antoine Malliarakis [mailto:antoine.malliarakis@...]
> Sent: Friday, November 13, 2009 5:10 PM
> To: ikvm-developers@...
> Subject: [Ikvm-developers] Bridging from java Class objects to .NET
> Type objects
>
> Hello all
>
> Sorry to bother you again, I was just trying to see if there was a way
> to access the .NET Type associated to a Class object.
>
> Here is my example: I have an object which is of a java type (namely
> com.ullink.bm.model.RowEvent) in my .NET application and I would like
> to access its .NET Type e.g. I would like to fetch the .NET Type object
> which defines all the .NET informations of the associated type.
>
> I don't know if this is clear but do you have any idea of how I could
> get to this?
>
> Sorry again for bothering you and thanks a lot for your patience and
> help!
>
> Regards
>
> Antoine Malliarakis

Bridging from java Class objects to .NET Type objects

2009-11-13T08:10:04Z

Hello all

Sorry to bother you again, I was just trying to see if there was a way to access the .NET Type associated to a Class object.

Here is my example: I have an object which is of a java type (namely com.ullink.bm.model.RowEvent) in my .NET application and I would like to access its .NET Type e.g. I would like to fetch the .NET Type object which defines all the .NET informations of the associated type.

I don't know if this is clear but do you have any idea of how I could get to this?

Sorry again for bothering you and thanks a lot for your patience and help!

Regards

Antoine Malliarakis

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Re: Stream of a process does not seam to be correctlyredirected

2009-11-10T11:26:46Z

Hi Markus,

I think there can be 2 causes for the problem:

1.) You write that not all was compiled without problems. Which problems occur?

2.) You use a part from the Sun JDK (tools.jar). This must not be compatible with the OpenJDK. There are some changes in some internal packages..

We can add the some of the needed sources to the IKVM and add a IKVM.OpenJDK.tools.dll.

Volker

Von: Markus Bischof [mailto:markusbischof82@...]
Gesendet: Montag, 9. November 2009 20:46
An: Volker Berlin
Betreff: Re: AW: [Ikvm-developers] Stream of a process does not seam to be correctlyredirected

Hi Volker,

thanks for your quick reply.

Well, my intention is to be able to debug an arbitrary java application within a .NET control, for example, a specialized TextBox. For that purpose, I need to access the java application using the Java Debug Interface.

My actual implementation in Java uses the Java Debug Interface and implements a facade around it. Clients (in my case the TextBox) only need to provide a very simple interface to debug a java application (at least some parts of it).

I added the following lines to my sample program:

File f = new File("JavaWasHere");

f.createNewFile();

After compiling the sample program (using the standard java compiler), copying the class-file into the correct directory and running the exe-file, I really see the file being created. So the process was started and did succeed. Only the code which reads out the output stream of the process does not seem to get the "Hello world" output.

--> Running the java implementation, the file gets created, too, and the "Hello world" from the sample program is received.

I really think there is a problem in the conversion process from java to .NET...

Markus

Am 09.11.2009 um 20:19 schrieb Volker Berlin:

Hi Markus,

What do you want do with the Java Debug Interface? If you want start an external process then it is simpler to use java.lang.Process.

Because IKVM does not implement the Java Debug Intererface that you can't debug a IKVM process currently with a Java IDE. It can be possible that if you use tools.jar that you can debug an real Java process with a IKVM application. This part of JDI is 100% pure Java.

I think the problem is that the external process was not startet. That you can not receive a stream. You test application sould create a file or equals that you see that it was running.

Volker

Von: Markus Bischof [mailto:markusbischof82@...]
Gesendet: Montag, 9. November 2009 19:36
An: ikvm-developers@...
Betreff: [Ikvm-developers] Stream of a process does not seam to be correctlyredirected

Hi all,

this is my first time writing to this list, so I hope I'm targeting the correct audience.

I've developed a Java application which uses the Java Debug Interface (comes in the tools.jar-file of each Java SDK lib folder). The application starts a Java virtual machine and executes the given java program.

After some time I thought it might be very cool to have this application as a .NET assembly. I converted my jar-file (as well as the tools.jar) and most functionality worked really fine. Although ikvmc could not convert the whole tools.jar-file, it was enough for my program to run.

But I ran into a problem with reading out the output stream of the virtual machine process (reading out a stream from a process created on my own is actually no problem in the converted exe).

I've added a small program showing this problem. I've also added the test file I'm using.

To execute the program in eclipse, you have to reference the tools.jar and also set the working directory of the program to be the folder where your binaries are located (the compiled test file must be located in the subdirectory "main"). When you run the program, you will get an output similiar to:

--> JAVA_HOME = C:\Program Files\Java\jre6
--> someting was printed out
streamReader done
vmThread done

After converting the jar file to a .NET exe file (and placing it into the same directory), I only got the output:

--> JAVA_HOME = C:\.virtual-ikvm-home
vmThread done

This reveals two differences:
1. Somehow the functionality of how the value of JAVA_HOME is obtained is differently (this is no environment variable, actually. Because it's not my java code, I can't say how the value is obtained). In the test application, I override this value with the correct path to be sure that the .NET exe has set the correct path.
2. It seems that reading from the output stream of the virtual machine process is not possible. There is no line indicating that stream.available() returns true. This is actually the bigger problem.

Well, I hope someone might know a solution for my problem(s)! I also hope that the sample program is simple enough to be understandable.

Markus

Re: Stream of a process does not seam to be correctlyredirected

2009-11-09T11:19:05Z

Hi Markus,

What do you want do with the Java Debug Interface? If you want start an external process then it is simpler to use java.lang.Process.

Because IKVM does not implement the Java Debug Intererface that you can't debug a IKVM process currently with a Java IDE. It can be possible that if you use tools.jar that you can debug an real Java process with a IKVM application. This part of JDI is 100% pure Java.

I think the problem is that the external process was not startet. That you can not receive a stream. You test application sould create a file or equals that you see that it was running.

Volker

Von: Markus Bischof [mailto:markusbischof82@...]
Gesendet: Montag, 9. November 2009 19:36
An: ikvm-developers@...
Betreff: [Ikvm-developers] Stream of a process does not seam to be correctlyredirected

Hi all,

this is my first time writing to this list, so I hope I'm targeting the correct audience.

I've developed a Java application which uses the Java Debug Interface (comes in the tools.jar-file of each Java SDK lib folder). The application starts a Java virtual machine and executes the given java program.

After some time I thought it might be very cool to have this application as a .NET assembly. I converted my jar-file (as well as the tools.jar) and most functionality worked really fine. Although ikvmc could not convert the whole tools.jar-file, it was enough for my program to run.

But I ran into a problem with reading out the output stream of the virtual machine process (reading out a stream from a process created on my own is actually no problem in the converted exe).

I've added a small program showing this problem. I've also added the test file I'm using.

To execute the program in eclipse, you have to reference the tools.jar and also set the working directory of the program to be the folder where your binaries are located (the compiled test file must be located in the subdirectory "main"). When you run the program, you will get an output similiar to:

--> JAVA_HOME = C:\Program Files\Java\jre6
--> someting was printed out
streamReader done
vmThread done

After converting the jar file to a .NET exe file (and placing it into the same directory), I only got the output:

--> JAVA_HOME = C:\.virtual-ikvm-home
vmThread done

This reveals two differences:
1. Somehow the functionality of how the value of JAVA_HOME is obtained is differently (this is no environment variable, actually. Because it's not my java code, I can't say how the value is obtained). In the test application, I override this value with the correct path to be sure that the .NET exe has set the correct path.
2. It seems that reading from the output stream of the virtual machine process is not possible. There is no line indicating that stream.available() returns true. This is actually the bigger problem.

Well, I hope someone might know a solution for my problem(s)! I also hope that the sample program is simple enough to be understandable.

Markus

Stream of a process does not seam to be correctly redirected

2009-11-09T11:17:39Z

Uh,

probably I should paste the code right here:

This is my test-class:

package main;

public class Test

{

/**

* @param args

public static void main(String[] args)

{

System.out.println("Hello world");

}

And here comes the part using the Java Debug Interface:

import java.io.IOException;

import java.io.InputStream;

import java.util.Iterator;

import java.util.List;

import java.util.Map;

import com.sun.jdi.Bootstrap;

import com.sun.jdi.VirtualMachine;

import com.sun.jdi.VirtualMachineManager;

import com.sun.jdi.connect.Connector;

import com.sun.jdi.connect.LaunchingConnector;

import com.sun.jdi.connect.Connector.Argument;

public class TestVmProcess

{

private static VirtualMachine _vm;

private static VirtualMachineManager _vmManager;

private static LaunchingConnector _connector;

/**

* @param args

public static void main(String[] args) throws Exception

{

// vm manager

_vmManager = Bootstrap.virtualMachineManager();

// connector

List<Connector> connectors = _vmManager.allConnectors();

Iterator<Connector> iterator = connectors.iterator();

while (iterator.hasNext())

{

Connector c = iterator.next();

if (c != null && c instanceof LaunchingConnector && c.name() == "com.sun.jdi.CommandLineLaunch")

{

_connector = (LaunchingConnector) c;

break;

}

// arguments

Map<String, Argument> arguments = _connector.defaultArguments();

Argument arg = (Argument) arguments.get("main");

arg.setValue("main.Test");

arg = (Argument) arguments.get("home");

System.out.println("--> JAVA_HOME = " + arg.value());

// manually set this path as under ikvm i get '.virtual-ikvm-home'

arg.setValue("C:/Java/jdk1.6.0_17");

// launch vm

_vm = _connector.launch(arguments);

// redirect output of the vm

Thread streamReader = new Thread(new Runnable(){

@Override

public void run()

{

InputStream stream = _vm.process().getInputStream();

while(true)

{

try

{

if (stream.available() > 0)

{

System.out.println("--> someting was printed out");

break;

}

catch (IOException e)

{

break;

}

System.out.println("streamReader done");

}});

streamReader.start();

// keep the vm running

Thread vmRunner = new Thread(new Runnable(){

@Override

public void run()

{

while(true)

{

try

{

_vm.eventQueue().remove().resume();

}

catch (Exception e)

{

break;

}

System.out.println("vmThread done");

}});

vmRunner.start();

// keep running until user presses a button

System.in.read();

}

Sorry for that!

Markus

Stream of a process does not seam to be correctly redirected

2009-11-09T10:35:52Z

Hi all,

this is my first time writing to this list, so I hope I'm targeting the correct audience.

I've developed a Java application which uses the Java Debug Interface (comes in the tools.jar-file of each Java SDK lib folder). The application starts a Java virtual machine and executes the given java program.

After some time I thought it might be very cool to have this application as a .NET assembly. I converted my jar-file (as well as the tools.jar) and most functionality worked really fine. Although ikvmc could not convert the whole tools.jar-file, it was enough for my program to run.

But I ran into a problem with reading out the output stream of the virtual machine process (reading out a stream from a process created on my own is actually no problem in the converted exe).

I've added a small program showing this problem. I've also added the test file I'm using.

To execute the program in eclipse, you have to reference the tools.jar and also set the working directory of the program to be the folder where your binaries are located (the compiled test file must be located in the subdirectory "main"). When you run the program, you will get an output similiar to:

--> JAVA_HOME = C:\Program Files\Java\jre6
--> someting was printed out
streamReader done
vmThread done

After converting the jar file to a .NET exe file (and placing it into the same directory), I only got the output:

--> JAVA_HOME = C:\.virtual-ikvm-home
vmThread done

This reveals two differences:
1. Somehow the functionality of how the value of JAVA_HOME is obtained is differently (this is no environment variable, actually. Because it's not my java code, I can't say how the value is obtained). In the test application, I override this value with the correct path to be sure that the .NET exe has set the correct path.
2. It seems that reading from the output stream of the virtual machine process is not possible. There is no line indicating that stream.available() returns true. This is actually the bigger problem.

Well, I hope someone might know a solution for my problem(s)! I also hope that the sample program is simple enough to be understandable.

Markus

Test.java (270 bytes) Download Attachment
TestVmProcess.java (3K) Download Attachment

Re: calling wbeservice with axis

2009-11-09T08:13:13Z

Hi Jeroen,

Great!
It is working after I managed to invoke a static method before the log4j
logger.

Really appreciated!

Best Regards,
Jun

-----Original Message-----
From: Jeroen Frijters [mailto:jeroen@...]
Sent: Saturday, November 07, 2009 2:45 AM
To: Li, Jun; ikvm-developers@...
Subject: RE: [Ikvm-developers] calling wbeservice with axis

The sample I posted didn't solve the problem. It was only a hint on how
to solve the problem. It shows that javax.activation uses the system
class loader and that you need to set the system class loader to a class
loader that knows how to load META-INF/mailcap (i.e. delegate to the
axis assembly class loader).

I've attached something that should work. BTW, you must make sure that
the java.system.class.loader system property is set before any other
Java code executes, otherwise you run the risk of getting the default
system class loader.

Regards,
Jeroen

> -----Original Message-----
> From: Li, Jun [mailto:jun.li@...]
> Sent: Friday, November 06, 2009 10:23 PM
> To: Jeroen Frijters; ikvm-developers@...
> Subject: RE: [Ikvm-developers] calling wbeservice with axis
>
> Hi Jeroen,
>
> Thank you so much for your kindly help and I understand your point
now.

> And I do have my own system classloader.
> Anyway, I tried the code in a new project and I got the exactly error
> message.
> Just wondering if it is related with the version(0.40.0.1) I have.
> Will try to download a new version...
>
> Best regards and have a good weekend,
> Jun
>
> -----Original Message-----
> From: Jeroen Frijters [mailto:jeroen@...]
> Sent: Friday, November 06, 2009 3:18 PM
> To: Li, Jun; ikvm-developers@...
> Subject: RE: [Ikvm-developers] calling wbeservice with axis
>
> Hi Jun,
>
> No. javax.activation uses the system class loader. The attached
> example shows that and it also shows how you can change the system
> class loader.
>
> Regards,
> Jeroen
>
> > -----Original Message-----
> > From: Li, Jun [mailto:jun.li@...]
> > Sent: Friday, November 06, 2009 5:00 PM
> > To: Jeroen Frijters; ikvm-developers@...
> > Subject: RE: [Ikvm-developers] calling wbeservice with axis
> >
> > Hi Jeroen,
> >
> > I thought that the cause of the problem is that those two jar files
> > (activation.jar and axis.jar) are NOT in the same classloader.
> > Currently, the axis is loaded in system class loader (I guess the
> > AssemblyClassLoader is the default one).
> >
> > Thanks,
> > Jun
> >
> > -----Original Message-----
> > From: Jeroen Frijters [mailto:jeroen@...]
> > Sent: Friday, November 06, 2009 10:53 AM
> > To: Li, Jun; ikvm-developers@...
> > Subject: RE: [Ikvm-developers] calling wbeservice with axis
> >
> > Hi Jun,
> >
> > Why not simply make sure that the axis assembly is reachable via the

> > system class loader?
> >
> > Regards,
> > Jeroen
> >
> > > -----Original Message-----
> > > From: Li, Jun [mailto:jun.li@...]
> > > Sent: Friday, November 06, 2009 4:43 PM
> > > To: Jeroen Frijters; ikvm-developers@...
> > > Subject: RE: [Ikvm-developers] calling wbeservice with axis
> > >
> > > Hi Jeroen,
> > >
> > > Yes, you are right. The class loader of
> javax.activation.DataHandler
>
> > > is null and it is bootstrap class loader.
> > > Just wondering how can I add/recompile the axis.jar in the boot
> > > class library. (I know it is awful).
> > > Otherwise, not sure if anyone else used the axis via IKVM since I
> > > don't really want to rewrite those web service code in c#.
> > >
> > > Thanks,
> > > Jun
> > >
> > > -----Original Message-----
> > > From: Jeroen Frijters [mailto:jeroen@...]
> > > Sent: Friday, November 06, 2009 10:33 AM
> > > To: Li, Jun; ikvm-developers@...
> > > Subject: RE: [Ikvm-developers] calling wbeservice with axis
> > >
> > > Hi,
> > >
> > > The class loader of javax.activation.DataHandler is null (aka the
> > > bootstrap class loader). In IKVM.NET you cannot add stuff to the
> > > boot class path (except by recompiling the boot class library),
> > > but I seriously doubt that's necessary. Most code in the boot
> > > class library uses either the system or the thread context class

loader.

> > >
> > > Regards,
> > > Jeroen
> > >
> > > > -----Original Message-----
> > > > From: jun_li [mailto:jun.li@...]
> > > > Sent: Friday, November 06, 2009 4:15 PM
> > > > To: ikvm-developers@...
> > > > Subject: [Ikvm-developers] calling wbeservice with axis
> > > >
> > > >
> > > > Hi,
> > > >
> > > > I try to invoke the webservice call implemented in java(I
> > > > converted the java code into dll).
> > > > I got the following error:
> > > > javax.activation.UnsupportedDataTypeException: no object DCH for

> > > > MIME type text/plain at
> > > > javax.activation.DataHandler.getInputStream(DataHandler.java:248
> > > > )
> > > > at
> > > >
> > >
> >
>
javax.activation.DataHandlerDataSource.getInputStream(DataHandler.java:

> > > > 703)
> > > > at
> > > >
> > >
> >
> org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:
> > > > 7
> > > > 3)
> > > > at
> > > >
> > >
> >
> org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:
> > > > 3
> > > > 8)
> > > > at
> > > >
> > >
> >
> org.apache.axis.attachments.AttachmentsImpl.getContentLength(Attachmen
> > > > t
> > > > sImpl.java:438)
> > > > at org.apache.axis.Message.getContentLength(Message.java:512)
> > > > at
> > > >
> > >
> >
> org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.jav
> > > > a
> > > > :371)
> > > > at
> > > >
> > org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:138
> > > > )
> > > > at
> > > >
> > >
> >
>

org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.

> > > > java:33)
> > > > at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:119)
> > > > at org.apache.axis.SimpleChain.invoke(SimpleChain.java:85)
> > > > at
> > > > org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
> > > > at org.apache.axis.client.Call.invokeEngine(Call.java:2786)
> > > > at org.apache.axis.client.Call.invoke(Call.java:2767)
> > > > at org.apache.axis.client.Call.invoke(Call.java:2443)
> > > > at org.apache.axis.client.Call.invoke(Call.java:2366)
> > > > at org.apache.axis.client.Call.invoke(Call.java:1812)
> > > >
> > > > I did some research.
> > > > It looks like the axis.jar is loaded via
> > > > ikvm.runtime.AssemblyClassLoader, however, the
> > > > javax.activation.DataHandler( I believe it is implemented in
> > > > IKVM.OpenJDK.Misc) is loaded from java.lang.ClassLoader.
> > > >
> > > > Is it possible to have loaded them in the same classloader?
> > > > Or is there other way to handle this?
> > > >
> > > > Thanks,
> > > > Jun
> > > > --
> > > > View this message in context:
> > > > http://old.nabble.com/calling-wbeservice-
> > > > with-axis-tp26230793p26230793.html
> > > > Sent from the IKVM .NET - Dev mailing list archive at

Nabble.com.

> > > >
> > > >
> > > > ----------------------------------------------------------------
> > > > -
> -
> > > > -
> > -
> > > > -
> > > -
> > > > -
> > > > -------
> > > > Let Crystal Reports handle the reporting - Free Crystal Reports
> > 2008
> >
> > > > 30-Day trial. Simplify your report design, integration and
> > > > deployment
> > > > - and focus on what you do best, core application coding.
> Discover
>
> > > > what's new with Crystal Reports now.
> > > > http://p.sf.net/sfu/bobj-july
> > > > _______________________________________________
> > > > Ikvm-developers mailing list
> > > > Ikvm-developers@...
> > > > https://lists.sourceforge.net/lists/listinfo/ikvm-developers
> > >
> > >
> >
> ======================================================================
> > > =
> > > ========
> > > Please access the attached hyperlink for an important electronic
> > > communications disclaimer:
> > > http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
> > >
> > >
> >
> ======================================================================
> > > =
> > > ========
> > >
> >
> >
> ======================================================================
> > =
> > ========
> > Please access the attached hyperlink for an important electronic
> > communications disclaimer:
> > http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
> >
> >
> ======================================================================
> > =
> > ========
> >
>
> ======================================================================
> =
> ========
> Please access the attached hyperlink for an important electronic
> communications disclaimer:
> http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
>
> ======================================================================
> =
> ========
>

===============================================================================
Please access the attached hyperlink for an important electronic communications disclaimer:
http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
===============================================================================

------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
trial. Simplify your report design, integration and deployment - and focus on
what you do best, core application coding. Discover what's new with
Crystal Reports now. http://p.sf.net/sfu/bobj-july
_______________________________________________
Ikvm-developers mailing list
Ikvm-developers@...
https://lists.sourceforge.net/lists/listinfo/ikvm-developers

Re: calling wbeservice with axis

2009-11-06T23:45:09Z

The sample I posted didn't solve the problem. It was only a hint on how to solve the problem. It shows that javax.activation uses the system class loader and that you need to set the system class loader to a class loader that knows how to load META-INF/mailcap (i.e. delegate to the axis assembly class loader).

I've attached something that should work. BTW, you must make sure that the java.system.class.loader system property is set before any other Java code executes, otherwise you run the risk of getting the default system class loader.

Regards,
Jeroen

> -----Original Message-----
> From: Li, Jun [mailto:jun.li@...]
> Sent: Friday, November 06, 2009 10:23 PM
> To: Jeroen Frijters; ikvm-developers@...
> Subject: RE: [Ikvm-developers] calling wbeservice with axis
>
> Hi Jeroen,
>
> Thank you so much for your kindly help and I understand your point now.
> And I do have my own system classloader.
> Anyway, I tried the code in a new project and I got the exactly error
> message.
> Just wondering if it is related with the version(0.40.0.1) I have.
> Will try to download a new version...
>
> Best regards and have a good weekend,
> Jun
>
> -----Original Message-----
> From: Jeroen Frijters [mailto:jeroen@...]
> Sent: Friday, November 06, 2009 3:18 PM
> To: Li, Jun; ikvm-developers@...
> Subject: RE: [Ikvm-developers] calling wbeservice with axis
>
> Hi Jun,
>
> No. javax.activation uses the system class loader. The attached example
> shows that and it also shows how you can change the system class
> loader.
>
> Regards,
> Jeroen
>
> > -----Original Message-----
> > From: Li, Jun [mailto:jun.li@...]
> > Sent: Friday, November 06, 2009 5:00 PM
> > To: Jeroen Frijters; ikvm-developers@...
> > Subject: RE: [Ikvm-developers] calling wbeservice with axis
> >
> > Hi Jeroen,
> >
> > I thought that the cause of the problem is that those two jar files
> > (activation.jar and axis.jar) are NOT in the same classloader.
> > Currently, the axis is loaded in system class loader (I guess the
> > AssemblyClassLoader is the default one).
> >
> > Thanks,
> > Jun
> >
> > -----Original Message-----
> > From: Jeroen Frijters [mailto:jeroen@...]
> > Sent: Friday, November 06, 2009 10:53 AM
> > To: Li, Jun; ikvm-developers@...
> > Subject: RE: [Ikvm-developers] calling wbeservice with axis
> >
> > Hi Jun,
> >
> > Why not simply make sure that the axis assembly is reachable via the
> > system class loader?
> >
> > Regards,
> > Jeroen
> >
> > > -----Original Message-----
> > > From: Li, Jun [mailto:jun.li@...]
> > > Sent: Friday, November 06, 2009 4:43 PM
> > > To: Jeroen Frijters; ikvm-developers@...
> > > Subject: RE: [Ikvm-developers] calling wbeservice with axis
> > >
> > > Hi Jeroen,
> > >
> > > Yes, you are right. The class loader of
> javax.activation.DataHandler
>
> > > is null and it is bootstrap class loader.
> > > Just wondering how can I add/recompile the axis.jar in the boot
> > > class library. (I know it is awful).
> > > Otherwise, not sure if anyone else used the axis via IKVM since I
> > > don't really want to rewrite those web service code in c#.
> > >
> > > Thanks,
> > > Jun
> > >
> > > -----Original Message-----
> > > From: Jeroen Frijters [mailto:jeroen@...]
> > > Sent: Friday, November 06, 2009 10:33 AM
> > > To: Li, Jun; ikvm-developers@...
> > > Subject: RE: [Ikvm-developers] calling wbeservice with axis
> > >
> > > Hi,
> > >
> > > The class loader of javax.activation.DataHandler is null (aka the
> > > bootstrap class loader). In IKVM.NET you cannot add stuff to the
> > > boot class path (except by recompiling the boot class library), but
> > > I seriously doubt that's necessary. Most code in the boot class
> > > library uses either the system or the thread context class loader.
> > >
> > > Regards,
> > > Jeroen
> > >
> > > > -----Original Message-----
> > > > From: jun_li [mailto:jun.li@...]
> > > > Sent: Friday, November 06, 2009 4:15 PM
> > > > To: ikvm-developers@...
> > > > Subject: [Ikvm-developers] calling wbeservice with axis
> > > >
> > > >
> > > > Hi,
> > > >
> > > > I try to invoke the webservice call implemented in java(I
> > > > converted the java code into dll).
> > > > I got the following error:
> > > > javax.activation.UnsupportedDataTypeException: no object DCH for
> > > > MIME type text/plain at
> > > > javax.activation.DataHandler.getInputStream(DataHandler.java:248)
> > > > at
> > > >
> > >
> >
> javax.activation.DataHandlerDataSource.getInputStream(DataHandler.java:
> > > > 703)
> > > > at
> > > >
> > >
> >
> org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:
> > > > 7
> > > > 3)
> > > > at
> > > >
> > >
> >
> org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:
> > > > 3
> > > > 8)
> > > > at
> > > >
> > >
> >
> org.apache.axis.attachments.AttachmentsImpl.getContentLength(Attachmen
> > > > t
> > > > sImpl.java:438)
> > > > at org.apache.axis.Message.getContentLength(Message.java:512)
> > > > at
> > > >
> > >
> >
> org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.jav
> > > > a
> > > > :371)
> > > > at
> > > >
> > org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:138
> > > > )
> > > > at
> > > >
> > >
> >
> org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.
> > > > java:33)
> > > > at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:119)
> > > > at org.apache.axis.SimpleChain.invoke(SimpleChain.java:85)
> > > > at org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
> > > > at org.apache.axis.client.Call.invokeEngine(Call.java:2786)
> > > > at org.apache.axis.client.Call.invoke(Call.java:2767)
> > > > at org.apache.axis.client.Call.invoke(Call.java:2443)
> > > > at org.apache.axis.client.Call.invoke(Call.java:2366)
> > > > at org.apache.axis.client.Call.invoke(Call.java:1812)
> > > >
> > > > I did some research.
> > > > It looks like the axis.jar is loaded via
> > > > ikvm.runtime.AssemblyClassLoader, however, the
> > > > javax.activation.DataHandler( I believe it is implemented in
> > > > IKVM.OpenJDK.Misc) is loaded from java.lang.ClassLoader.
> > > >
> > > > Is it possible to have loaded them in the same classloader?
> > > > Or is there other way to handle this?
> > > >
> > > > Thanks,
> > > > Jun
> > > > --
> > > > View this message in context:
> > > > http://old.nabble.com/calling-wbeservice-
> > > > with-axis-tp26230793p26230793.html
> > > > Sent from the IKVM .NET - Dev mailing list archive at Nabble.com.
> > > >
> > > >
> > > > -----------------------------------------------------------------
> -
> > > > -
> > -
> > > > -
> > > -
> > > > -
> > > > -------
> > > > Let Crystal Reports handle the reporting - Free Crystal Reports
> > 2008
> >
> > > > 30-Day trial. Simplify your report design, integration and
> > > > deployment
> > > > - and focus on what you do best, core application coding.
> Discover
>
> > > > what's new with Crystal Reports now.
> > > > http://p.sf.net/sfu/bobj-july
> > > > _______________________________________________
> > > > Ikvm-developers mailing list
> > > > Ikvm-developers@...
> > > > https://lists.sourceforge.net/lists/listinfo/ikvm-developers
> > >
> > >
> >
> ======================================================================
> > > =
> > > ========
> > > Please access the attached hyperlink for an important electronic
> > > communications disclaimer:
> > > http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
> > >
> > >
> >
> ======================================================================
> > > =
> > > ========
> > >
> >
> >
> ======================================================================
> > =
> > ========
> > Please access the attached hyperlink for an important electronic
> > communications disclaimer:
> > http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
> >
> >
> ======================================================================
> > =
> > ========
> >
>
> =======================================================================
> ========
> Please access the attached hyperlink for an important electronic
> communications disclaimer:
> http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
>
> =======================================================================
> ========
>

ï»¿using System;

public class Program : java.lang.ClassLoader
{
public Program(java.lang.ClassLoader parent)
: base(GetClassLoader())
{
}

private static java.lang.ClassLoader GetClassLoader()
{
java.lang.Class c = typeof(javax.mail.Message);
return c.getClassLoader();
}

static void Main(string[] args)
{
java.lang.System.setProperty("java.system.class.loader", typeof(Program).AssemblyQualifiedName);
javax.activation.DataHandler dh = new javax.activation.DataHandler("foo", "text/plain");
dh.getInputStream();
}
}

------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
trial. Simplify your report design, integration and deployment - and focus on
what you do best, core application coding. Discover what's new with
Crystal Reports now. http://p.sf.net/sfu/bobj-july
_______________________________________________
Ikvm-developers mailing list
Ikvm-developers@...
https://lists.sourceforge.net/lists/listinfo/ikvm-developers

Re: calling wbeservice with axis

2009-11-06T13:26:23Z

Looks like I had the latest version :(.

-----Original Message-----
From: Li, Jun
Sent: Friday, November 06, 2009 4:23 PM
To: 'Jeroen Frijters'; ikvm-developers@...
Subject: RE: [Ikvm-developers] calling wbeservice with axis

Hi Jeroen,

Thank you so much for your kindly help and I understand your point now.
And I do have my own system classloader.
Anyway, I tried the code in a new project and I got the exactly error
message.
Just wondering if it is related with the version(0.40.0.1) I have.
Will try to download a new version...

Best regards and have a good weekend,
Jun

-----Original Message-----
From: Jeroen Frijters [mailto:jeroen@...]
Sent: Friday, November 06, 2009 3:18 PM
To: Li, Jun; ikvm-developers@...
Subject: RE: [Ikvm-developers] calling wbeservice with axis

Hi Jun,

No. javax.activation uses the system class loader. The attached example
shows that and it also shows how you can change the system class loader.

Regards,
Jeroen

> > is null and it is bootstrap class loader.
> > Just wondering how can I add/recompile the axis.jar in the boot
> > class library. (I know it is awful).
> > Otherwise, not sure if anyone else used the axis via IKVM since I
> > don't really want to rewrite those web service code in c#.
> >
> > Thanks,
> > Jun
> >
> > -----Original Message-----
> > From: Jeroen Frijters [mailto:jeroen@...]
> > Sent: Friday, November 06, 2009 10:33 AM
> > To: Li, Jun; ikvm-developers@...
> > Subject: RE: [Ikvm-developers] calling wbeservice with axis
> >
> > Hi,
> >
> > The class loader of javax.activation.DataHandler is null (aka the
> > bootstrap class loader). In IKVM.NET you cannot add stuff to the
> > boot class path (except by recompiling the boot class library), but
> > I seriously doubt that's necessary. Most code in the boot class
> > library uses either the system or the thread context class loader.
> >
> > Regards,
> > Jeroen
> >
> > > -----Original Message-----
> > > From: jun_li [mailto:jun.li@...]
> > > Sent: Friday, November 06, 2009 4:15 PM
> > > To: ikvm-developers@...
> > > Subject: [Ikvm-developers] calling wbeservice with axis
> > >
> > >
> > > Hi,
> > >
> > > I try to invoke the webservice call implemented in java(I
> > > converted the java code into dll).
> > > I got the following error:
> > > javax.activation.UnsupportedDataTypeException: no object DCH for
> > > MIME type text/plain at
> > > javax.activation.DataHandler.getInputStream(DataHandler.java:248)
> > > at
> > >
> >
>

javax.activation.DataHandlerDataSource.getInputStream(DataHandler.java:

> > > 703)
> > > at
> > >
> >
> org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:
> > > 7
> > > 3)
> > > at
> > >
> >
> org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:
> > > 3
> > > 8)
> > > at
> > >
> >
> org.apache.axis.attachments.AttachmentsImpl.getContentLength(Attachmen
> > > t
> > > sImpl.java:438)
> > > at org.apache.axis.Message.getContentLength(Message.java:512)
> > > at
> > >
> >
> org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.jav
> > > a
> > > :371)
> > > at
> > >
> org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:138
> > > )
> > > at
> > >
> >
>

org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.

> > > java:33)
> > > at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:119)
> > > at org.apache.axis.SimpleChain.invoke(SimpleChain.java:85)
> > > at org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
> > > at org.apache.axis.client.Call.invokeEngine(Call.java:2786)
> > > at org.apache.axis.client.Call.invoke(Call.java:2767)
> > > at org.apache.axis.client.Call.invoke(Call.java:2443)
> > > at org.apache.axis.client.Call.invoke(Call.java:2366)
> > > at org.apache.axis.client.Call.invoke(Call.java:1812)
> > >
> > > I did some research.
> > > It looks like the axis.jar is loaded via
> > > ikvm.runtime.AssemblyClassLoader, however, the
> > > javax.activation.DataHandler( I believe it is implemented in
> > > IKVM.OpenJDK.Misc) is loaded from java.lang.ClassLoader.
> > >
> > > Is it possible to have loaded them in the same classloader?
> > > Or is there other way to handle this?
> > >
> > > Thanks,
> > > Jun
> > > --
> > > View this message in context:
> > > http://old.nabble.com/calling-wbeservice-
> > > with-axis-tp26230793p26230793.html
> > > Sent from the IKVM .NET - Dev mailing list archive at Nabble.com.
> > >
> > >
> > > ------------------------------------------------------------------
> > > -
> -
> > > -
> > -
> > > -
> > > -------
> > > Let Crystal Reports handle the reporting - Free Crystal Reports
> 2008
>
> > > 30-Day trial. Simplify your report design, integration and
> > > deployment
> > > - and focus on what you do best, core application coding. Discover

> > > what's new with Crystal Reports now.
> > > http://p.sf.net/sfu/bobj-july
> > > _______________________________________________
> > > Ikvm-developers mailing list
> > > Ikvm-developers@...
> > > https://lists.sourceforge.net/lists/listinfo/ikvm-developers
> >
> >
> ======================================================================
> > =
> > ========
> > Please access the attached hyperlink for an important electronic
> > communications disclaimer:
> > http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
> >
> >
> ======================================================================
> > =
> > ========
> >
>
> ======================================================================
> =
> ========
> Please access the attached hyperlink for an important electronic
> communications disclaimer:
> http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
>
> ======================================================================
> =
> ========
>

Re: calling wbeservice with axis

2009-11-06T13:23:21Z

Hi Jeroen,

Thank you so much for your kindly help and I understand your point now.
And I do have my own system classloader.
Anyway, I tried the code in a new project and I got the exactly error
message.
Just wondering if it is related with the version(0.40.0.1) I have.
Will try to download a new version...

Best regards and have a good weekend,
Jun

-----Original Message-----
From: Jeroen Frijters [mailto:jeroen@...]
Sent: Friday, November 06, 2009 3:18 PM
To: Li, Jun; ikvm-developers@...
Subject: RE: [Ikvm-developers] calling wbeservice with axis

Hi Jun,

No. javax.activation uses the system class loader. The attached example
shows that and it also shows how you can change the system class loader.

Regards,
Jeroen

javax.activation.DataHandlerDataSource.getInputStream(DataHandler.java:

org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.

Re: calling wbeservice with axis

2009-11-06T12:17:48Z

Hi Jun,

No. javax.activation uses the system class loader. The attached example shows that and it also shows how you can change the system class loader.

Regards,
Jeroen

> -----Original Message-----
> From: Li, Jun [mailto:jun.li@...]
> Sent: Friday, November 06, 2009 5:00 PM
> To: Jeroen Frijters; ikvm-developers@...
> Subject: RE: [Ikvm-developers] calling wbeservice with axis
>
> Hi Jeroen,
>
> I thought that the cause of the problem is that those two jar files
> (activation.jar and axis.jar) are NOT in the same classloader.
> Currently, the axis is loaded in system class loader (I guess the
> AssemblyClassLoader is the default one).
>
> Thanks,
> Jun
>
> -----Original Message-----
> From: Jeroen Frijters [mailto:jeroen@...]
> Sent: Friday, November 06, 2009 10:53 AM
> To: Li, Jun; ikvm-developers@...
> Subject: RE: [Ikvm-developers] calling wbeservice with axis
>
> Hi Jun,
>
> Why not simply make sure that the axis assembly is reachable via the
> system class loader?
>
> Regards,
> Jeroen
>
> > -----Original Message-----
> > From: Li, Jun [mailto:jun.li@...]
> > Sent: Friday, November 06, 2009 4:43 PM
> > To: Jeroen Frijters; ikvm-developers@...
> > Subject: RE: [Ikvm-developers] calling wbeservice with axis
> >
> > Hi Jeroen,
> >
> > Yes, you are right. The class loader of javax.activation.DataHandler
> > is null and it is bootstrap class loader.
> > Just wondering how can I add/recompile the axis.jar in the boot class
> > library. (I know it is awful).
> > Otherwise, not sure if anyone else used the axis via IKVM since I
> > don't really want to rewrite those web service code in c#.
> >
> > Thanks,
> > Jun
> >
> > -----Original Message-----
> > From: Jeroen Frijters [mailto:jeroen@...]
> > Sent: Friday, November 06, 2009 10:33 AM
> > To: Li, Jun; ikvm-developers@...
> > Subject: RE: [Ikvm-developers] calling wbeservice with axis
> >
> > Hi,
> >
> > The class loader of javax.activation.DataHandler is null (aka the
> > bootstrap class loader). In IKVM.NET you cannot add stuff to the boot
> > class path (except by recompiling the boot class library), but I
> > seriously doubt that's necessary. Most code in the boot class library
> > uses either the system or the thread context class loader.
> >
> > Regards,
> > Jeroen
> >
> > > -----Original Message-----
> > > From: jun_li [mailto:jun.li@...]
> > > Sent: Friday, November 06, 2009 4:15 PM
> > > To: ikvm-developers@...
> > > Subject: [Ikvm-developers] calling wbeservice with axis
> > >
> > >
> > > Hi,
> > >
> > > I try to invoke the webservice call implemented in java(I converted
> > > the java code into dll).
> > > I got the following error:
> > > javax.activation.UnsupportedDataTypeException: no object DCH for
> > > MIME type text/plain at
> > > javax.activation.DataHandler.getInputStream(DataHandler.java:248)
> > > at
> > >
> >
> javax.activation.DataHandlerDataSource.getInputStream(DataHandler.java:
> > > 703)
> > > at
> > >
> >
> org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:
> > > 7
> > > 3)
> > > at
> > >
> >
> org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:
> > > 3
> > > 8)
> > > at
> > >
> >
> org.apache.axis.attachments.AttachmentsImpl.getContentLength(Attachmen
> > > t
> > > sImpl.java:438)
> > > at org.apache.axis.Message.getContentLength(Message.java:512)
> > > at
> > >
> >
> org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.jav
> > > a
> > > :371)
> > > at
> > >
> org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:138
> > > )
> > > at
> > >
> >
> org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.
> > > java:33)
> > > at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:119)
> > > at org.apache.axis.SimpleChain.invoke(SimpleChain.java:85)
> > > at org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
> > > at org.apache.axis.client.Call.invokeEngine(Call.java:2786)
> > > at org.apache.axis.client.Call.invoke(Call.java:2767)
> > > at org.apache.axis.client.Call.invoke(Call.java:2443)
> > > at org.apache.axis.client.Call.invoke(Call.java:2366)
> > > at org.apache.axis.client.Call.invoke(Call.java:1812)
> > >
> > > I did some research.
> > > It looks like the axis.jar is loaded via
> > > ikvm.runtime.AssemblyClassLoader, however, the
> > > javax.activation.DataHandler( I believe it is implemented in
> > > IKVM.OpenJDK.Misc) is loaded from java.lang.ClassLoader.
> > >
> > > Is it possible to have loaded them in the same classloader?
> > > Or is there other way to handle this?
> > >
> > > Thanks,
> > > Jun
> > > --
> > > View this message in context:
> > > http://old.nabble.com/calling-wbeservice-
> > > with-axis-tp26230793p26230793.html
> > > Sent from the IKVM .NET - Dev mailing list archive at Nabble.com.
> > >
> > >
> > > -------------------------------------------------------------------
> -
> > > -
> > -
> > > -
> > > -------
> > > Let Crystal Reports handle the reporting - Free Crystal Reports
> 2008
>
> > > 30-Day trial. Simplify your report design, integration and
> > > deployment
> > > - and focus on what you do best, core application coding. Discover
> > > what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july
> > > _______________________________________________
> > > Ikvm-developers mailing list
> > > Ikvm-developers@...
> > > https://lists.sourceforge.net/lists/listinfo/ikvm-developers
> >
> >
> ======================================================================
> > =
> > ========
> > Please access the attached hyperlink for an important electronic
> > communications disclaimer:
> > http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
> >
> >
> ======================================================================
> > =
> > ========
> >
>
> =======================================================================
> ========
> Please access the attached hyperlink for an important electronic
> communications disclaimer:
> http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
>
> =======================================================================
> ========
>

ï»¿using System;

public class Program : java.lang.ClassLoader
{
public Program(java.lang.ClassLoader parent)
: base(parent)
{
}

protected override java.net.URL findResource(string name)
{
Console.WriteLine(name);
return base.findResource(name);
}

static void Main(string[] args)
{
java.lang.System.setProperty("java.system.class.loader", typeof(Program).AssemblyQualifiedName);
javax.activation.DataHandler dh = new javax.activation.DataHandler("foo", "text/plain");
dh.getInputStream();
}
}

------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
trial. Simplify your report design, integration and deployment - and focus on
what you do best, core application coding. Discover what's new with
Crystal Reports now. http://p.sf.net/sfu/bobj-july
_______________________________________________
Ikvm-developers mailing list
Ikvm-developers@...
https://lists.sourceforge.net/lists/listinfo/ikvm-developers

Re: calling wbeservice with axis

2009-11-06T08:00:16Z

Hi Jeroen,

I thought that the cause of the problem is that those two jar files
(activation.jar and axis.jar) are NOT in the same classloader.
Currently, the axis is loaded in system class loader (I guess the
AssemblyClassLoader is the default one).

Thanks,
Jun

-----Original Message-----
From: Jeroen Frijters [mailto:jeroen@...]
Sent: Friday, November 06, 2009 10:53 AM
To: Li, Jun; ikvm-developers@...
Subject: RE: [Ikvm-developers] calling wbeservice with axis

Hi Jun,

Why not simply make sure that the axis assembly is reachable via the
system class loader?

Regards,
Jeroen

javax.activation.DataHandlerDataSource.getInputStream(DataHandler.java:

> > 703)
> > at
> >
> org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:
> > 7
> > 3)
> > at
> >
> org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:
> > 3
> > 8)
> > at
> >
> org.apache.axis.attachments.AttachmentsImpl.getContentLength(Attachmen
> > t
> > sImpl.java:438)
> > at org.apache.axis.Message.getContentLength(Message.java:512)
> > at
> >
> org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.jav
> > a
> > :371)
> > at
> > org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:138
> > )
> > at
> >
>

org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.

> > java:33)
> > at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:119)
> > at org.apache.axis.SimpleChain.invoke(SimpleChain.java:85)
> > at org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
> > at org.apache.axis.client.Call.invokeEngine(Call.java:2786)
> > at org.apache.axis.client.Call.invoke(Call.java:2767)
> > at org.apache.axis.client.Call.invoke(Call.java:2443)
> > at org.apache.axis.client.Call.invoke(Call.java:2366)
> > at org.apache.axis.client.Call.invoke(Call.java:1812)
> >
> > I did some research.
> > It looks like the axis.jar is loaded via
> > ikvm.runtime.AssemblyClassLoader, however, the
> > javax.activation.DataHandler( I believe it is implemented in
> > IKVM.OpenJDK.Misc) is loaded from java.lang.ClassLoader.
> >
> > Is it possible to have loaded them in the same classloader?
> > Or is there other way to handle this?
> >
> > Thanks,
> > Jun
> > --
> > View this message in context:
> > http://old.nabble.com/calling-wbeservice-
> > with-axis-tp26230793p26230793.html
> > Sent from the IKVM .NET - Dev mailing list archive at Nabble.com.
> >
> >
> > --------------------------------------------------------------------
> > -
> -
> > -
> > -------
> > Let Crystal Reports handle the reporting - Free Crystal Reports 2008

> > 30-Day trial. Simplify your report design, integration and
> > deployment
> > - and focus on what you do best, core application coding. Discover
> > what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july
> > _______________________________________________
> > Ikvm-developers mailing list
> > Ikvm-developers@...
> > https://lists.sourceforge.net/lists/listinfo/ikvm-developers
>
> ======================================================================
> =
> ========
> Please access the attached hyperlink for an important electronic
> communications disclaimer:
> http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
>
> ======================================================================
> =
> ========
>

Re: calling wbeservice with axis

2009-11-06T07:53:14Z

Hi Jun,

Why not simply make sure that the axis assembly is reachable via the system class loader?

Regards,
Jeroen

> -----Original Message-----
> From: Li, Jun [mailto:jun.li@...]
> Sent: Friday, November 06, 2009 4:43 PM
> To: Jeroen Frijters; ikvm-developers@...
> Subject: RE: [Ikvm-developers] calling wbeservice with axis
>
> Hi Jeroen,
>
> Yes, you are right. The class loader of javax.activation.DataHandler is
> null and it is bootstrap class loader.
> Just wondering how can I add/recompile the axis.jar in the boot class
> library. (I know it is awful).
> Otherwise, not sure if anyone else used the axis via IKVM since I don't
> really want to rewrite those web service code in c#.
>
> Thanks,
> Jun
>
> -----Original Message-----
> From: Jeroen Frijters [mailto:jeroen@...]
> Sent: Friday, November 06, 2009 10:33 AM
> To: Li, Jun; ikvm-developers@...
> Subject: RE: [Ikvm-developers] calling wbeservice with axis
>
> Hi,
>
> The class loader of javax.activation.DataHandler is null (aka the
> bootstrap class loader). In IKVM.NET you cannot add stuff to the boot
> class path (except by recompiling the boot class library), but I
> seriously doubt that's necessary. Most code in the boot class library
> uses either the system or the thread context class loader.
>
> Regards,
> Jeroen
>
> > -----Original Message-----
> > From: jun_li [mailto:jun.li@...]
> > Sent: Friday, November 06, 2009 4:15 PM
> > To: ikvm-developers@...
> > Subject: [Ikvm-developers] calling wbeservice with axis
> >
> >
> > Hi,
> >
> > I try to invoke the webservice call implemented in java(I converted
> > the java code into dll).
> > I got the following error:
> > javax.activation.UnsupportedDataTypeException: no object DCH for MIME
> > type text/plain at
> > javax.activation.DataHandler.getInputStream(DataHandler.java:248)
> > at
> >
> javax.activation.DataHandlerDataSource.getInputStream(DataHandler.java:
> > 703)
> > at
> >
> org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:
> > 7
> > 3)
> > at
> >
> org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:
> > 3
> > 8)
> > at
> >
> org.apache.axis.attachments.AttachmentsImpl.getContentLength(Attachmen
> > t
> > sImpl.java:438)
> > at org.apache.axis.Message.getContentLength(Message.java:512)
> > at
> >
> org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.jav
> > a
> > :371)
> > at
> > org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:138)
> > at
> >
> org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.
> > java:33)
> > at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:119)
> > at org.apache.axis.SimpleChain.invoke(SimpleChain.java:85)
> > at org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
> > at org.apache.axis.client.Call.invokeEngine(Call.java:2786)
> > at org.apache.axis.client.Call.invoke(Call.java:2767)
> > at org.apache.axis.client.Call.invoke(Call.java:2443)
> > at org.apache.axis.client.Call.invoke(Call.java:2366)
> > at org.apache.axis.client.Call.invoke(Call.java:1812)
> >
> > I did some research.
> > It looks like the axis.jar is loaded via
> > ikvm.runtime.AssemblyClassLoader, however, the
> > javax.activation.DataHandler( I believe it is implemented in
> > IKVM.OpenJDK.Misc) is loaded from java.lang.ClassLoader.
> >
> > Is it possible to have loaded them in the same classloader?
> > Or is there other way to handle this?
> >
> > Thanks,
> > Jun
> > --
> > View this message in context:
> > http://old.nabble.com/calling-wbeservice-
> > with-axis-tp26230793p26230793.html
> > Sent from the IKVM .NET - Dev mailing list archive at Nabble.com.
> >
> >
> > ---------------------------------------------------------------------
> -
> > -
> > -------
> > Let Crystal Reports handle the reporting - Free Crystal Reports 2008
> > 30-Day trial. Simplify your report design, integration and deployment
> > - and focus on what you do best, core application coding. Discover
> > what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july
> > _______________________________________________
> > Ikvm-developers mailing list
> > Ikvm-developers@...
> > https://lists.sourceforge.net/lists/listinfo/ikvm-developers
>
> =======================================================================
> ========
> Please access the attached hyperlink for an important electronic
> communications disclaimer:
> http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
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>

Re: calling wbeservice with axis

2009-11-06T07:49:06Z

Just another thought, is there any old version of IKVM which does not
include activation in the boot library?
I can build activation.jar and axis.jar in the same assembly.

-----Original Message-----
From: Li, Jun
Sent: Friday, November 06, 2009 10:43 AM
To: 'Jeroen Frijters'; ikvm-developers@...
Subject: RE: [Ikvm-developers] calling wbeservice with axis

Hi Jeroen,

Yes, you are right. The class loader of javax.activation.DataHandler is
null and it is bootstrap class loader.
Just wondering how can I add/recompile the axis.jar in the boot class
library. (I know it is awful).
Otherwise, not sure if anyone else used the axis via IKVM since I don't
really want to rewrite those web service code in c#.

Thanks,
Jun

-----Original Message-----
From: Jeroen Frijters [mailto:jeroen@...]
Sent: Friday, November 06, 2009 10:33 AM
To: Li, Jun; ikvm-developers@...
Subject: RE: [Ikvm-developers] calling wbeservice with axis

Hi,

The class loader of javax.activation.DataHandler is null (aka the
bootstrap class loader). In IKVM.NET you cannot add stuff to the boot
class path (except by recompiling the boot class library), but I
seriously doubt that's necessary. Most code in the boot class library
uses either the system or the thread context class loader.

Regards,
Jeroen

javax.activation.DataHandlerDataSource.getInputStream(DataHandler.java:

> 703)
> at
> org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:
> 7
> 3)
> at
> org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:
> 3
> 8)
> at
> org.apache.axis.attachments.AttachmentsImpl.getContentLength(Attachmen
> t
> sImpl.java:438)
> at org.apache.axis.Message.getContentLength(Message.java:512)
> at
> org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.jav
> a
> :371)
> at
> org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:138)
> at
>

org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.

> java:33)
> at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:119)
> at org.apache.axis.SimpleChain.invoke(SimpleChain.java:85)
> at org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
> at org.apache.axis.client.Call.invokeEngine(Call.java:2786)
> at org.apache.axis.client.Call.invoke(Call.java:2767)
> at org.apache.axis.client.Call.invoke(Call.java:2443)
> at org.apache.axis.client.Call.invoke(Call.java:2366)
> at org.apache.axis.client.Call.invoke(Call.java:1812)
>
> I did some research.
> It looks like the axis.jar is loaded via
> ikvm.runtime.AssemblyClassLoader, however, the
> javax.activation.DataHandler( I believe it is implemented in
> IKVM.OpenJDK.Misc) is loaded from java.lang.ClassLoader.
>
> Is it possible to have loaded them in the same classloader?
> Or is there other way to handle this?
>
> Thanks,
> Jun
> --
> View this message in context:
> http://old.nabble.com/calling-wbeservice-
> with-axis-tp26230793p26230793.html
> Sent from the IKVM .NET - Dev mailing list archive at Nabble.com.
>
>
> ----------------------------------------------------------------------
> -
> -------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008
> 30-Day trial. Simplify your report design, integration and deployment
> - and focus on what you do best, core application coding. Discover
> what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july
> _______________________________________________
> Ikvm-developers mailing list
> Ikvm-developers@...
> https://lists.sourceforge.net/lists/listinfo/ikvm-developers

Re: calling wbeservice with axis

2009-11-06T07:42:40Z

Hi Jeroen,

Yes, you are right. The class loader of javax.activation.DataHandler is
null and it is bootstrap class loader.
Just wondering how can I add/recompile the axis.jar in the boot class
library. (I know it is awful).
Otherwise, not sure if anyone else used the axis via IKVM since I don't
really want to rewrite those web service code in c#.

Thanks,
Jun

-----Original Message-----
From: Jeroen Frijters [mailto:jeroen@...]
Sent: Friday, November 06, 2009 10:33 AM
To: Li, Jun; ikvm-developers@...
Subject: RE: [Ikvm-developers] calling wbeservice with axis

Hi,

The class loader of javax.activation.DataHandler is null (aka the
bootstrap class loader). In IKVM.NET you cannot add stuff to the boot
class path (except by recompiling the boot class library), but I
seriously doubt that's necessary. Most code in the boot class library
uses either the system or the thread context class loader.

Regards,
Jeroen

javax.activation.DataHandlerDataSource.getInputStream(DataHandler.java:

org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.

Re: calling wbeservice with axis

2009-11-06T07:32:49Z

Hi,

The class loader of javax.activation.DataHandler is null (aka the bootstrap class loader). In IKVM.NET you cannot add stuff to the boot class path (except by recompiling the boot class library), but I seriously doubt that's necessary. Most code in the boot class library uses either the system or the thread context class loader.

Regards,
Jeroen

> -----Original Message-----
> From: jun_li [mailto:jun.li@...]
> Sent: Friday, November 06, 2009 4:15 PM
> To: ikvm-developers@...
> Subject: [Ikvm-developers] calling wbeservice with axis
>
>
> Hi,
>
> I try to invoke the webservice call implemented in java(I converted the
> java code into dll).
> I got the following error:
> javax.activation.UnsupportedDataTypeException: no object DCH for MIME
> type text/plain at
> javax.activation.DataHandler.getInputStream(DataHandler.java:248)
> at
> javax.activation.DataHandlerDataSource.getInputStream(DataHandler.java:
> 703)
> at
> org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:7
> 3)
> at
> org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:3
> 8)
> at
> org.apache.axis.attachments.AttachmentsImpl.getContentLength(Attachment
> sImpl.java:438)
> at org.apache.axis.Message.getContentLength(Message.java:512)
> at
> org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.java
> :371)
> at
> org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:138)
> at
> org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.
> java:33)
> at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:119)
> at org.apache.axis.SimpleChain.invoke(SimpleChain.java:85)
> at org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
> at org.apache.axis.client.Call.invokeEngine(Call.java:2786)
> at org.apache.axis.client.Call.invoke(Call.java:2767)
> at org.apache.axis.client.Call.invoke(Call.java:2443)
> at org.apache.axis.client.Call.invoke(Call.java:2366)
> at org.apache.axis.client.Call.invoke(Call.java:1812)
>
> I did some research.
> It looks like the axis.jar is loaded via
> ikvm.runtime.AssemblyClassLoader, however, the
> javax.activation.DataHandler( I believe it is implemented in
> IKVM.OpenJDK.Misc) is loaded from java.lang.ClassLoader.
>
> Is it possible to have loaded them in the same classloader?
> Or is there other way to handle this?
>
> Thanks,
> Jun
> --
> View this message in context: http://old.nabble.com/calling-wbeservice-
> with-axis-tp26230793p26230793.html
> Sent from the IKVM .NET - Dev mailing list archive at Nabble.com.
>
>
> -----------------------------------------------------------------------
> -------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008
> 30-Day
> trial. Simplify your report design, integration and deployment - and
> focus on
> what you do best, core application coding. Discover what's new with
> Crystal Reports now. http://p.sf.net/sfu/bobj-july
> _______________________________________________
> Ikvm-developers mailing list
> Ikvm-developers@...
> https://lists.sourceforge.net/lists/listinfo/ikvm-developers

calling wbeservice with axis

2009-11-06T07:14:45Z

Hi,

I try to invoke the webservice call implemented in java(I converted the java code into dll).
I got the following error:
javax.activation.UnsupportedDataTypeException: no object DCH for MIME type text/plain
at javax.activation.DataHandler.getInputStream(DataHandler.java:248)
at javax.activation.DataHandlerDataSource.getInputStream(DataHandler.java:703)
at org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:73)
at org.apache.axis.attachments.MimeUtils.getContentLength(MimeUtils.java:38)
at org.apache.axis.attachments.AttachmentsImpl.getContentLength(AttachmentsImpl.java:438)
at org.apache.axis.Message.getContentLength(Message.java:512)
at org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.java:371)
at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:138)
at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:33)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:119)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:85)
at org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
at org.apache.axis.client.Call.invokeEngine(Call.java:2786)
at org.apache.axis.client.Call.invoke(Call.java:2767)
at org.apache.axis.client.Call.invoke(Call.java:2443)
at org.apache.axis.client.Call.invoke(Call.java:2366)
at org.apache.axis.client.Call.invoke(Call.java:1812)

I did some research.
It looks like the axis.jar is loaded via ikvm.runtime.AssemblyClassLoader, however, the javax.activation.DataHandler( I believe it is implemented in IKVM.OpenJDK.Misc) is loaded from java.lang.ClassLoader.

Is it possible to have loaded them in the same classloader?
Or is there other way to handle this?

Thanks,
Jun

Re: Product versioning...

2009-11-06T05:08:07Z

A sample can you see in the repository at http://ikvm.cvs.sourceforge.net/viewvc/*checkout*/ikvm/ikvm/openjdk/AssemblyInfo.java.in?revision=1.2.4.1

Von: Antoine Malliarakis [mailto:antoine.malliarakis@...]
Gesendet: Freitag, 6. November 2009 13:49
An: ikvm-developers@...
Betreff: [Ikvm-developers] Product versioning...

Hello (again)

After having gone through the proper use of the remap process (which works perfectly, thanks, by the way) I came up with another question.
Does this remap process also allow to specify custom assembly attributes? I saw in the blog that it was moved to AssemblyInfo.java since the version 0.30 ... What's that? Where is it? I'm kinda lost here and that would kinda help me :'(

To be more specific my target is to add an "System.Reflection.AssemblyInformationalVersion" attribute to the generated assembly.

Thanks for your help (and patience...)

Regards

Antoine Malliarakis