wrapper org.gradle.BootstrapMain class not found issue

[Tom Eyckmans]

ok, I'm trying to setup a new project for the gradle/gradle github stuff and I'm running into a class not found exception on org.gradle.BootstrapMain since snapshot 0.8-20090829161512+1000.

output:

/*
 *************************************** 0.8-20090829161512+1000 ***********************************************************************************
 */

Unzipping /home/teyckmans/.gradle/wrapper/dists/gradle-0.8-20090829161512+1000-bin.zip to /home/teyckmans/.gradle/wrapper/dists
Exception in thread "main" java.lang.ClassNotFoundException: org.gradle.BootstrapMain
        at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
        at org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:36)
        at org.gradle.wrapper.Wrapper.execute(Wrapper.java:58)
        at org.gradle.wrapper.WrapperMain.main(WrapperMain.java:41)
teyckmans@workbench:~/lib/org/gradle/work/github/gradle/gradle$

I checked and this is the first snapshot that contains the gradle-core jar. Not sure yet what is going wrong, hunt goes on...

[Steve Appling]

Tom Eyckmans wrote:

> ok, I'm trying to setup a new project for the gradle/gradle github stuff
> and I'm running into a class not found exception on
> org.gradle.BootstrapMain since snapshot 0.8-20090829161512+1000.
>
> output:
>
> /*
>  *************************************** 0.8-20090829161512+1000
> ***********************************************************************************
>  */
>
> Unzipping
> /home/teyckmans/.gradle/wrapper/dists/gradle-0.8-20090829161512+1000-bin.zip
> to /home/teyckmans/.gradle/wrapper/dists
> Exception in thread "main" java.lang.ClassNotFoundException:
> org.gradle.BootstrapMain
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
>         at
> org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:36)
>         at org.gradle.wrapper.Wrapper.execute(Wrapper.java:58)
>         at org.gradle.wrapper.WrapperMain.main(WrapperMain.java:41)
> teyckmans@workbench:~/lib/org/gradle/work/github/gradle/gradle$
>
> I checked and this is the first snapshot that contains the gradle-core
> jar. Not sure yet what is going wrong, hunt goes on...

It's interesting that this is the same problem some one was encountering when
trying to run the GUI, but it worked on other machines.  Please post if you find
out what is going on.

--
Steve Appling
Automated Logic Research Team

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[Tom Eyckmans]

2009/9/17 Steve Appling <sajakarta@...>

Tom Eyckmans wrote:

ok, I'm trying to setup a new project for the gradle/gradle github stuff and I'm running into a class not found exception on org.gradle.BootstrapMain since snapshot 0.8-20090829161512+1000.

output:

/*
 *************************************** 0.8-20090829161512+1000 ***********************************************************************************
 */

Unzipping /home/teyckmans/.gradle/wrapper/dists/gradle-0.8-20090829161512+1000-bin.zip to /home/teyckmans/.gradle/wrapper/dists
Exception in thread "main" java.lang.ClassNotFoundException: org.gradle.BootstrapMain
       at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
       at java.security.AccessController.doPrivileged(Native Method)
       at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
       at org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:36)
       at org.gradle.wrapper.Wrapper.execute(Wrapper.java:58)
       at org.gradle.wrapper.WrapperMain.main(WrapperMain.java:41)
teyckmans@workbench:~/lib/org/gradle/work/github/gradle/gradle$

I checked and this is the first snapshot that contains the gradle-core jar. Not sure yet what is going wrong, hunt goes on...

It's interesting that this is the same problem some one was encountering when trying to run the GUI, but it worked on other machines.  Please post if you find out what is going on.

I checked out the Wrapper task code and if I read it correctly the gradle-wrapper.jar of the (old) gradle version is copied into the project directory, because we migrated to a multiproject build the gradle jar file is renamed to gradle-core and the (old) gradle-wrapper.jar looks for a gradle-XX.jar file that doesn't exist anymore. To prevent this a snapshot of the wrapper jar should be downloaded instead of copied from the old gradle home, because the wrapper code looks ok to me in trunk. 

--
Steve Appling
Automated Logic Research Team

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To unsubscribe from this list, please visit:

  http://xircles.codehaus.org/manage_email

[hdockter]

On Sep 17, 2009, at 10:39 PM, Tom Eyckmans wrote:

2009/9/17 Steve Appling <sajakarta@...>

Tom Eyckmans wrote:

ok, I'm trying to setup a new project for the gradle/gradle github stuff and I'm running into a class not found exception on org.gradle.BootstrapMain since snapshot 0.8-20090829161512+1000.

output:

/*
 *************************************** 0.8-20090829161512+1000 ***********************************************************************************
 */

Unzipping /home/teyckmans/.gradle/wrapper/dists/gradle-0.8-20090829161512+1000-bin.zip to /home/teyckmans/.gradle/wrapper/dists
Exception in thread "main" java.lang.ClassNotFoundException: org.gradle.BootstrapMain
       at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
       at java.security.AccessController.doPrivileged(Native Method)
       at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
       at org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:36)
       at org.gradle.wrapper.Wrapper.execute(Wrapper.java:58)
       at org.gradle.wrapper.WrapperMain.main(WrapperMain.java:41)
teyckmans@workbench:~/lib/org/gradle/work/github/gradle/gradle$

I checked and this is the first snapshot that contains the gradle-core jar. Not sure yet what is going wrong, hunt goes on...

It's interesting that this is the same problem some one was encountering when trying to run the GUI, but it worked on other machines.  Please post if you find out what is going on.

I checked out the Wrapper task code and if I read it correctly the gradle-wrapper.jar of the (old) gradle version is copied into the project directory, because we migrated to a multiproject build the gradle jar file is renamed to gradle-core and the (old) gradle-wrapper.jar looks for a gradle-XX.jar file that doesn't exist anymore. To prevent this a snapshot of the wrapper jar should be downloaded instead of copied from the old gradle home, because the wrapper code looks ok to me in trunk. 

I still don't understand why your are running into this error. The BootstrapMainStarter of the wrapper.jar of gradle master looks for gradle-core-..., which is contained in the wrapper distribution specified in the gradle.properties.

You can run the wrapper like:  export GRADLE_OPTS="-Dgradle.bootstrap.debug=true" && ./gradlew clean

That will give you some debug output.

- Hans

--

Hans Dockter

Gradle Project Manager

http://www.gradle.org