ArrayIndexOutOfBoundsException was thrown from the source

[Lin Han]

Hi Niall,

I am using the SimpleXML to serialize / de-serialize the objects in my
project.
When I tried to serialize an object with a Map variable, I got the
ArrayIndexOutOfBoundsException.

I did some debugging in SimpleXML source codes and found the reason
which may be a bug:

In ElementMapLabel.java, the method getDependent() returns the items[0]
without checking if the array "items" has element in advance. The
"items" is grabbed from the method getDependents() of the Contact, where
a new empty array may be returned.

Please feel free to let me know if my debugging has problem or it can be
avoided by other approaches.

Best regards,

------------------------------------------------------------------------------
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
_______________________________________________
Simple-support mailing list
Simple-support@...
https://lists.sourceforge.net/lists/listinfo/simple-support

[niall.gallagher]

Hi,

Can I see how you annotated your Map? Ill bet you did the following?

@ElementMap
Map map

Here there is no information about the objects in the map, although I think ArrayIndexOutOfBounds is not good. Can you also provide the stack trace so I can investigate.

Thanks
Niall


Niall Gallagher
RBS Global Banking & Markets
Office: [phone]  

-----Original Message-----
From: Lin Han [mailto:lhan@...]
Sent: 09 September 2009 19:04
To: simple-support@...
Subject: [Simple-support] ArrayIndexOutOfBoundsException was thrown from the source

Hi Niall,

I am using the SimpleXML to serialize / de-serialize the objects in my project.
When I tried to serialize an object with a Map variable, I got the ArrayIndexOutOfBoundsException.

I did some debugging in SimpleXML source codes and found the reason which may be a bug:

In ElementMapLabel.java, the method getDependent() returns the items[0] without checking if the array "items" has element in advance. The "items" is grabbed from the method getDependents() of the Contact, where a new empty array may be returned.

Please feel free to let me know if my debugging has problem or it can be avoided by other approaches.

Best regards,

------------------------------------------------------------------------------
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 _______________________________________________
Simple-support mailing list
Simple-support@...
https://lists.sourceforge.net/lists/listinfo/simple-support

***********************************************************************************
The Royal Bank of Scotland plc. Registered in Scotland No 90312. Registered Office: 36 St Andrew Square, Edinburgh EH2 2YB.
Authorised and regulated by the Financial Services Authority.
 
This e-mail message is confidential and for use by the
addressee only. If the message is received by anyone other
than the addressee, please return the message to the sender
by replying to it and then delete the message from your
computer. Internet e-mails are not necessarily secure. The
Royal Bank of Scotland plc does not accept responsibility for
changes made to this message after it was sent.

Whilst all reasonable care has been taken to avoid the
transmission of viruses, it is the responsibility of the recipient to
ensure that the onward transmission, opening or use of this
message and any attachments will not adversely affect its
systems or data. No responsibility is accepted by The
Royal Bank of Scotland plc in this regard and the recipient should carry
out such virus and other checks as it considers appropriate.

Visit our website at www.rbs.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
_______________________________________________
Simple-support mailing list
Simple-support@...
https://lists.sourceforge.net/lists/listinfo/simple-support

[Lin Han]

Thanks for your reply.
Here are the two annotations I had ever tried.

@ElementMap(name="nic-types", entry="nic-type", key="key",
keyType=String.class, valueType=NicType.class, attribute=false, inline=true)
protected Map nicTypes = new HashMap();

AND

@ElementMap
protected Map nicTypes = new HashMap();

Both of them had the ArrayIndexOutOfBoundsException, the printed stack
are same:

java.lang.ArrayIndexOutOfBoundsException: 0
    at
org.simpleframework.xml.core.ElementMapLabel.getDependent(ElementMapLabel.java:183)
    at org.simpleframework.xml.core.CacheLabel.<init>(CacheLabel.java:114)
    at
org.simpleframework.xml.core.LabelFactory.getInstance(LabelFactory.java:67)
    at org.simpleframework.xml.core.Scanner.process(Scanner.java:668)
    at org.simpleframework.xml.core.Scanner.scan(Scanner.java:601)
    at org.simpleframework.xml.core.Scanner.field(Scanner.java:560)
    at org.simpleframework.xml.core.Scanner.scan(Scanner.java:368)
    at org.simpleframework.xml.core.Scanner.<init>(Scanner.java:105)
    at
org.simpleframework.xml.core.ScannerFactory.getInstance(ScannerFactory.java:67)
    at org.simpleframework.xml.core.Support.getScanner(Support.java:174)
    at org.simpleframework.xml.core.Source.getScanner(Source.java:241)
    at org.simpleframework.xml.core.Source.getCaller(Source.java:270)
    at
org.simpleframework.xml.core.Composite.writeReplace(Composite.java:1050)
    at
org.simpleframework.xml.core.Composite.writeElements(Composite.java:1025)
    at org.simpleframework.xml.core.Composite.write(Composite.java:934)
    at org.simpleframework.xml.core.Composite.write(Composite.java:910)
    at org.simpleframework.xml.core.Traverser.write(Traverser.java:221)
    at
org.simpleframework.xml.core.CompositeArray.write(CompositeArray.java:225)
    at
org.simpleframework.xml.core.Composite.writeElement(Composite.java:1158)
    at
org.simpleframework.xml.core.Composite.writeElement(Composite.java:1139)
    at
org.simpleframework.xml.core.Composite.writeElements(Composite.java:1028)
    at org.simpleframework.xml.core.Composite.write(Composite.java:934)
    at org.simpleframework.xml.core.Composite.write(Composite.java:910)
    at org.simpleframework.xml.core.Traverser.write(Traverser.java:221)
    at org.simpleframework.xml.core.Traverser.write(Traverser.java:194)
    at org.simpleframework.xml.core.Traverser.write(Traverser.java:172)
    at org.simpleframework.xml.core.Persister.write(Persister.java:923)
    at org.simpleframework.xml.core.Persister.write(Persister.java:905)
    at org.simpleframework.xml.core.Persister.write(Persister.java:886)
    at org.simpleframework.xml.core.Persister.write(Persister.java:1002)
    at org.simpleframework.xml.core.Persister.write(Persister.java:984)
    at org.simpleframework.xml.core.Persister.write(Persister.java:965)
    at org.simpleframework.xml.core.Persister.write(Persister.java:944)
    at OlmsExporter.exportPlatformType(OlmsExporter.java:177)
    at OlmsExporter.main(OlmsExporter.java:216)

If you need any more info, please feel free to ask.

Thanks again for your time and consideration.

Best,

niall.gallagher@... wrote:

> Hi,
>
> Can I see how you annotated your Map? Ill bet you did the following?
>
> @ElementMap
> Map map
>
> Here there is no information about the objects in the map, although I think ArrayIndexOutOfBounds is not good. Can you also provide the stack trace so I can investigate.
>
> Thanks
> Niall
>
>
> Niall Gallagher
> RBS Global Banking & Markets
> Office: [phone]  
>
> -----Original Message-----
> From: Lin Han [mailto:lhan@...]
> Sent: 09 September 2009 19:04
> To: simple-support@...
> Subject: [Simple-support] ArrayIndexOutOfBoundsException was thrown from the source
>
> Hi Niall,
>
> I am using the SimpleXML to serialize / de-serialize the objects in my project.
> When I tried to serialize an object with a Map variable, I got the ArrayIndexOutOfBoundsException.
>
> I did some debugging in SimpleXML source codes and found the reason which may be a bug:
>
> In ElementMapLabel.java, the method getDependent() returns the items[0] without checking if the array "items" has element in advance. The "items" is grabbed from the method getDependents() of the Contact, where a new empty array may be returned.
>
> Please feel free to let me know if my debugging has problem or it can be avoided by other approaches.
>
> Best regards,
>
> ------------------------------------------------------------------------------
> 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 _______________________________________________
> Simple-support mailing list
> Simple-support@...
> https://lists.sourceforge.net/lists/listinfo/simple-support
>
> ***********************************************************************************
> The Royal Bank of Scotland plc. Registered in Scotland No 90312. Registered Office: 36 St Andrew Square, Edinburgh EH2 2YB.
> Authorised and regulated by the Financial Services Authority.
>  
> This e-mail message is confidential and for use by the
> addressee only. If the message is received by anyone other
> than the addressee, please return the message to the sender
> by replying to it and then delete the message from your
> computer. Internet e-mails are not necessarily secure. The
> Royal Bank of Scotland plc does not accept responsibility for
> changes made to this message after it was sent.
>
> Whilst all reasonable care has been taken to avoid the
> transmission of viruses, it is the responsibility of the recipient to
> ensure that the onward transmission, opening or use of this
> message and any attachments will not adversely affect its
> systems or data. No responsibility is accepted by The
> Royal Bank of Scotland plc in this regard and the recipient should carry
> out such virus and other checks as it considers appropriate.
>
> Visit our website at www.rbs.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
_______________________________________________
Simple-support mailing list
Simple-support@...
https://lists.sourceforge.net/lists/listinfo/simple-support

[niall.gallagher]

Hi,

Ill look in to it, looks like a bug perhaps. You can avoid the but by using generics on the map.

Niall


Niall Gallagher
RBS Global Banking & Markets
Office: [phone]  

-----Original Message-----
From: Lin Han [mailto:lhan@...]
Sent: 10 September 2009 16:16
To: GALLAGHER, Niall, GBM
Cc: simple-support@...
Subject: Re: [Simple-support] ArrayIndexOutOfBoundsException was thrown from the source

Thanks for your reply.
Here are the two annotations I had ever tried.

@ElementMap(name="nic-types", entry="nic-type", key="key", keyType=String.class, valueType=NicType.class, attribute=false, inline=true) protected Map nicTypes = new HashMap();

AND

@ElementMap
protected Map nicTypes = new HashMap();

Both of them had the ArrayIndexOutOfBoundsException, the printed stack are same:

java.lang.ArrayIndexOutOfBoundsException: 0
    at
org.simpleframework.xml.core.ElementMapLabel.getDependent(ElementMapLabel.java:183)
    at org.simpleframework.xml.core.CacheLabel.<init>(CacheLabel.java:114)
    at
org.simpleframework.xml.core.LabelFactory.getInstance(LabelFactory.java:67)
    at org.simpleframework.xml.core.Scanner.process(Scanner.java:668)
    at org.simpleframework.xml.core.Scanner.scan(Scanner.java:601)
    at org.simpleframework.xml.core.Scanner.field(Scanner.java:560)
    at org.simpleframework.xml.core.Scanner.scan(Scanner.java:368)
    at org.simpleframework.xml.core.Scanner.<init>(Scanner.java:105)
    at
org.simpleframework.xml.core.ScannerFactory.getInstance(ScannerFactory.java:67)
    at org.simpleframework.xml.core.Support.getScanner(Support.java:174)
    at org.simpleframework.xml.core.Source.getScanner(Source.java:241)
    at org.simpleframework.xml.core.Source.getCaller(Source.java:270)
    at
org.simpleframework.xml.core.Composite.writeReplace(Composite.java:1050)
    at
org.simpleframework.xml.core.Composite.writeElements(Composite.java:1025)
    at org.simpleframework.xml.core.Composite.write(Composite.java:934)
    at org.simpleframework.xml.core.Composite.write(Composite.java:910)
    at org.simpleframework.xml.core.Traverser.write(Traverser.java:221)
    at
org.simpleframework.xml.core.CompositeArray.write(CompositeArray.java:225)
    at
org.simpleframework.xml.core.Composite.writeElement(Composite.java:1158)
    at
org.simpleframework.xml.core.Composite.writeElement(Composite.java:1139)
    at
org.simpleframework.xml.core.Composite.writeElements(Composite.java:1028)
    at org.simpleframework.xml.core.Composite.write(Composite.java:934)
    at org.simpleframework.xml.core.Composite.write(Composite.java:910)
    at org.simpleframework.xml.core.Traverser.write(Traverser.java:221)
    at org.simpleframework.xml.core.Traverser.write(Traverser.java:194)
    at org.simpleframework.xml.core.Traverser.write(Traverser.java:172)
    at org.simpleframework.xml.core.Persister.write(Persister.java:923)
    at org.simpleframework.xml.core.Persister.write(Persister.java:905)
    at org.simpleframework.xml.core.Persister.write(Persister.java:886)
    at org.simpleframework.xml.core.Persister.write(Persister.java:1002)
    at org.simpleframework.xml.core.Persister.write(Persister.java:984)
    at org.simpleframework.xml.core.Persister.write(Persister.java:965)
    at org.simpleframework.xml.core.Persister.write(Persister.java:944)
    at OlmsExporter.exportPlatformType(OlmsExporter.java:177)
    at OlmsExporter.main(OlmsExporter.java:216)

If you need any more info, please feel free to ask.

Thanks again for your time and consideration.

Best,

niall.gallagher@... wrote:

> Hi,
>
> Can I see how you annotated your Map? Ill bet you did the following?
>
> @ElementMap
> Map map
>
> Here there is no information about the objects in the map, although I think ArrayIndexOutOfBounds is not good. Can you also provide the stack trace so I can investigate.
>
> Thanks
> Niall
>
>
> Niall Gallagher
> RBS Global Banking & Markets
> Office: [phone]  
>
> -----Original Message-----
> From: Lin Han [mailto:lhan@...]
> Sent: 09 September 2009 19:04
> To: simple-support@...
> Subject: [Simple-support] ArrayIndexOutOfBoundsException was thrown
> from the source
>
> Hi Niall,
>
> I am using the SimpleXML to serialize / de-serialize the objects in my project.
> When I tried to serialize an object with a Map variable, I got the ArrayIndexOutOfBoundsException.
>
> I did some debugging in SimpleXML source codes and found the reason which may be a bug:
>
> In ElementMapLabel.java, the method getDependent() returns the items[0] without checking if the array "items" has element in advance. The "items" is grabbed from the method getDependents() of the Contact, where a new empty array may be returned.
>
> Please feel free to let me know if my debugging has problem or it can be avoided by other approaches.
>
> Best regards,
>
> ----------------------------------------------------------------------
> -------- 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 
> _______________________________________________
> Simple-support mailing list
> Simple-support@...
> https://lists.sourceforge.net/lists/listinfo/simple-support
>
> **********************************************************************
> ************* The Royal Bank of Scotland plc. Registered in Scotland
> No 90312. Registered Office: 36 St Andrew Square, Edinburgh EH2 2YB.
> Authorised and regulated by the Financial Services Authority.
>  
> This e-mail message is confidential and for use by the addressee only.
> If the message is received by anyone other than the addressee, please
> return the message to the sender by replying to it and then delete the
> message from your computer. Internet e-mails are not necessarily
> secure. The Royal Bank of Scotland plc does not accept responsibility
> for changes made to this message after it was sent.
>
> Whilst all reasonable care has been taken to avoid the transmission of
> viruses, it is the responsibility of the recipient to ensure that the
> onward transmission, opening or use of this message and any
> attachments will not adversely affect its systems or data. No
> responsibility is accepted by The Royal Bank of Scotland plc in this
> regard and the recipient should carry out such virus and other checks
> as it considers appropriate.
>
> Visit our website at www.rbs.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
_______________________________________________
Simple-support mailing list
Simple-support@...
https://lists.sourceforge.net/lists/listinfo/simple-support

[Lin Han]

After changing to use the generics on the map,
it works fine.

Thanks a lot for your help.

niall.gallagher@... wrote:

> Hi,
>
> Ill look in to it, looks like a bug perhaps. You can avoid the but by using generics on the map.
>
> Niall
>
>
> Niall Gallagher
> RBS Global Banking & Markets
> Office: [phone]  
>
> -----Original Message-----
> From: Lin Han [mailto:lhan@...]
> Sent: 10 September 2009 16:16
> To: GALLAGHER, Niall, GBM
> Cc: simple-support@...
> Subject: Re: [Simple-support] ArrayIndexOutOfBoundsException was thrown from the source
>
> Thanks for your reply.
> Here are the two annotations I had ever tried.
>
> @ElementMap(name="nic-types", entry="nic-type", key="key", keyType=String.class, valueType=NicType.class, attribute=false, inline=true) protected Map nicTypes = new HashMap();
>
> AND
>
> @ElementMap
> protected Map nicTypes = new HashMap();
>
> Both of them had the ArrayIndexOutOfBoundsException, the printed stack are same:
>
> java.lang.ArrayIndexOutOfBoundsException: 0
>     at
> org.simpleframework.xml.core.ElementMapLabel.getDependent(ElementMapLabel.java:183)
>     at org.simpleframework.xml.core.CacheLabel.<init>(CacheLabel.java:114)
>     at
> org.simpleframework.xml.core.LabelFactory.getInstance(LabelFactory.java:67)
>     at org.simpleframework.xml.core.Scanner.process(Scanner.java:668)
>     at org.simpleframework.xml.core.Scanner.scan(Scanner.java:601)
>     at org.simpleframework.xml.core.Scanner.field(Scanner.java:560)
>     at org.simpleframework.xml.core.Scanner.scan(Scanner.java:368)
>     at org.simpleframework.xml.core.Scanner.<init>(Scanner.java:105)
>     at
> org.simpleframework.xml.core.ScannerFactory.getInstance(ScannerFactory.java:67)
>     at org.simpleframework.xml.core.Support.getScanner(Support.java:174)
>     at org.simpleframework.xml.core.Source.getScanner(Source.java:241)
>     at org.simpleframework.xml.core.Source.getCaller(Source.java:270)
>     at
> org.simpleframework.xml.core.Composite.writeReplace(Composite.java:1050)
>     at
> org.simpleframework.xml.core.Composite.writeElements(Composite.java:1025)
>     at org.simpleframework.xml.core.Composite.write(Composite.java:934)
>     at org.simpleframework.xml.core.Composite.write(Composite.java:910)
>     at org.simpleframework.xml.core.Traverser.write(Traverser.java:221)
>     at
> org.simpleframework.xml.core.CompositeArray.write(CompositeArray.java:225)
>     at
> org.simpleframework.xml.core.Composite.writeElement(Composite.java:1158)
>     at
> org.simpleframework.xml.core.Composite.writeElement(Composite.java:1139)
>     at
> org.simpleframework.xml.core.Composite.writeElements(Composite.java:1028)
>     at org.simpleframework.xml.core.Composite.write(Composite.java:934)
>     at org.simpleframework.xml.core.Composite.write(Composite.java:910)
>     at org.simpleframework.xml.core.Traverser.write(Traverser.java:221)
>     at org.simpleframework.xml.core.Traverser.write(Traverser.java:194)
>     at org.simpleframework.xml.core.Traverser.write(Traverser.java:172)
>     at org.simpleframework.xml.core.Persister.write(Persister.java:923)
>     at org.simpleframework.xml.core.Persister.write(Persister.java:905)
>     at org.simpleframework.xml.core.Persister.write(Persister.java:886)
>     at org.simpleframework.xml.core.Persister.write(Persister.java:1002)
>     at org.simpleframework.xml.core.Persister.write(Persister.java:984)
>     at org.simpleframework.xml.core.Persister.write(Persister.java:965)
>     at org.simpleframework.xml.core.Persister.write(Persister.java:944)
>     at OlmsExporter.exportPlatformType(OlmsExporter.java:177)
>     at OlmsExporter.main(OlmsExporter.java:216)
>
> If you need any more info, please feel free to ask.
>
> Thanks again for your time and consideration.
>
> Best,
>
> niall.gallagher@... wrote:
>  
>> Hi,
>>
>> Can I see how you annotated your Map? Ill bet you did the following?
>>
>> @ElementMap
>> Map map
>>
>> Here there is no information about the objects in the map, although I think ArrayIndexOutOfBounds is not good. Can you also provide the stack trace so I can investigate.
>>
>> Thanks
>> Niall
>>
>>
>> Niall Gallagher
>> RBS Global Banking & Markets
>> Office: [phone]  
>>
>> -----Original Message-----
>> From: Lin Han [mailto:lhan@...]
>> Sent: 09 September 2009 19:04
>> To: simple-support@...
>> Subject: [Simple-support] ArrayIndexOutOfBoundsException was thrown
>> from the source
>>
>> Hi Niall,
>>
>> I am using the SimpleXML to serialize / de-serialize the objects in my project.
>> When I tried to serialize an object with a Map variable, I got the ArrayIndexOutOfBoundsException.
>>
>> I did some debugging in SimpleXML source codes and found the reason which may be a bug:
>>
>> In ElementMapLabel.java, the method getDependent() returns the items[0] without checking if the array "items" has element in advance. The "items" is grabbed from the method getDependents() of the Contact, where a new empty array may be returned.
>>
>> Please feel free to let me know if my debugging has problem or it can be avoided by other approaches.
>>
>> Best regards,
>>
>> ----------------------------------------------------------------------
>> -------- 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 
>> _______________________________________________
>> Simple-support mailing list
>> Simple-support@...
>> https://lists.sourceforge.net/lists/listinfo/simple-support
>>
>> **********************************************************************
>> ************* The Royal Bank of Scotland plc. Registered in Scotland
>> No 90312. Registered Office: 36 St Andrew Square, Edinburgh EH2 2YB.
>> Authorised and regulated by the Financial Services Authority.
>>  
>> This e-mail message is confidential and for use by the addressee only.
>> If the message is received by anyone other than the addressee, please
>> return the message to the sender by replying to it and then delete the
>> message from your computer. Internet e-mails are not necessarily
>> secure. The Royal Bank of Scotland plc does not accept responsibility
>> for changes made to this message after it was sent.
>>
>> Whilst all reasonable care has been taken to avoid the transmission of
>> viruses, it is the responsibility of the recipient to ensure that the
>> onward transmission, opening or use of this message and any
>> attachments will not adversely affect its systems or data. No
>> responsibility is accepted by The Royal Bank of Scotland plc in this
>> regard and the recipient should carry out such virus and other checks
>> as it considers appropriate.
>>
>> Visit our website at www.rbs.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
_______________________________________________
Simple-support mailing list
Simple-support@...
https://lists.sourceforge.net/lists/listinfo/simple-support

[niall.gallagher]

Hi,

The real fix here is in ElementMapLabel.java. Set the method getDependent to the following.

   public Class getDependent() throws Exception  {
      Contact contact = getContact();
     
      if(items == null) {
         items = contact.getDependents();
      }        
      if(items == null) {
         throw new ElementException("Unable to determine type for %s", label);          
      }    
      if(items.length == 0) {
         return Object.class;
      }
      return items[0];
   }

Then you will no longer get an array index out of bounds whether there are generics or not.

Niall


Niall Gallagher
RBS Global Banking & Markets
Office: [phone]  

-----Original Message-----
From: Lin Han [mailto:lhan@...]
Sent: 10 September 2009 16:49
To: simple-support@...
Cc: GALLAGHER, Niall, GBM
Subject: Re: [Simple-support] ArrayIndexOutOfBoundsException was thrown from the source

After changing to use the generics on the map, it works fine.

Thanks a lot for your help.

niall.gallagher@... wrote:

> Hi,
>
> Ill look in to it, looks like a bug perhaps. You can avoid the but by using generics on the map.
>
> Niall
>
>
> Niall Gallagher
> RBS Global Banking & Markets
> Office: [phone]  
>
> -----Original Message-----
> From: Lin Han [mailto:lhan@...]
> Sent: 10 September 2009 16:16
> To: GALLAGHER, Niall, GBM
> Cc: simple-support@...
> Subject: Re: [Simple-support] ArrayIndexOutOfBoundsException was
> thrown from the source
>
> Thanks for your reply.
> Here are the two annotations I had ever tried.
>
> @ElementMap(name="nic-types", entry="nic-type", key="key",
> keyType=String.class, valueType=NicType.class, attribute=false,
> inline=true) protected Map nicTypes = new HashMap();
>
> AND
>
> @ElementMap
> protected Map nicTypes = new HashMap();
>
> Both of them had the ArrayIndexOutOfBoundsException, the printed stack are same:
>
> java.lang.ArrayIndexOutOfBoundsException: 0
>     at
> org.simpleframework.xml.core.ElementMapLabel.getDependent(ElementMapLabel.java:183)
>     at org.simpleframework.xml.core.CacheLabel.<init>(CacheLabel.java:114)
>     at
> org.simpleframework.xml.core.LabelFactory.getInstance(LabelFactory.java:67)
>     at org.simpleframework.xml.core.Scanner.process(Scanner.java:668)
>     at org.simpleframework.xml.core.Scanner.scan(Scanner.java:601)
>     at org.simpleframework.xml.core.Scanner.field(Scanner.java:560)
>     at org.simpleframework.xml.core.Scanner.scan(Scanner.java:368)
>     at org.simpleframework.xml.core.Scanner.<init>(Scanner.java:105)
>     at
> org.simpleframework.xml.core.ScannerFactory.getInstance(ScannerFactory.java:67)
>     at org.simpleframework.xml.core.Support.getScanner(Support.java:174)
>     at org.simpleframework.xml.core.Source.getScanner(Source.java:241)
>     at org.simpleframework.xml.core.Source.getCaller(Source.java:270)
>     at
> org.simpleframework.xml.core.Composite.writeReplace(Composite.java:1050)
>     at
> org.simpleframework.xml.core.Composite.writeElements(Composite.java:1025)
>     at org.simpleframework.xml.core.Composite.write(Composite.java:934)
>     at org.simpleframework.xml.core.Composite.write(Composite.java:910)
>     at org.simpleframework.xml.core.Traverser.write(Traverser.java:221)
>     at
> org.simpleframework.xml.core.CompositeArray.write(CompositeArray.java:225)
>     at
> org.simpleframework.xml.core.Composite.writeElement(Composite.java:1158)
>     at
> org.simpleframework.xml.core.Composite.writeElement(Composite.java:1139)
>     at
> org.simpleframework.xml.core.Composite.writeElements(Composite.java:1028)
>     at org.simpleframework.xml.core.Composite.write(Composite.java:934)
>     at org.simpleframework.xml.core.Composite.write(Composite.java:910)
>     at org.simpleframework.xml.core.Traverser.write(Traverser.java:221)
>     at org.simpleframework.xml.core.Traverser.write(Traverser.java:194)
>     at org.simpleframework.xml.core.Traverser.write(Traverser.java:172)
>     at org.simpleframework.xml.core.Persister.write(Persister.java:923)
>     at org.simpleframework.xml.core.Persister.write(Persister.java:905)
>     at org.simpleframework.xml.core.Persister.write(Persister.java:886)
>     at org.simpleframework.xml.core.Persister.write(Persister.java:1002)
>     at org.simpleframework.xml.core.Persister.write(Persister.java:984)
>     at org.simpleframework.xml.core.Persister.write(Persister.java:965)
>     at org.simpleframework.xml.core.Persister.write(Persister.java:944)
>     at OlmsExporter.exportPlatformType(OlmsExporter.java:177)
>     at OlmsExporter.main(OlmsExporter.java:216)
>
> If you need any more info, please feel free to ask.
>
> Thanks again for your time and consideration.
>
> Best,
>
> niall.gallagher@... wrote:
>  
>> Hi,
>>
>> Can I see how you annotated your Map? Ill bet you did the following?
>>
>> @ElementMap
>> Map map
>>
>> Here there is no information about the objects in the map, although I think ArrayIndexOutOfBounds is not good. Can you also provide the stack trace so I can investigate.
>>
>> Thanks
>> Niall
>>
>>
>> Niall Gallagher
>> RBS Global Banking & Markets
>> Office: [phone]  
>>
>> -----Original Message-----
>> From: Lin Han [mailto:lhan@...]
>> Sent: 09 September 2009 19:04
>> To: simple-support@...
>> Subject: [Simple-support] ArrayIndexOutOfBoundsException was thrown
>> from the source
>>
>> Hi Niall,
>>
>> I am using the SimpleXML to serialize / de-serialize the objects in my project.
>> When I tried to serialize an object with a Map variable, I got the ArrayIndexOutOfBoundsException.
>>
>> I did some debugging in SimpleXML source codes and found the reason which may be a bug:
>>
>> In ElementMapLabel.java, the method getDependent() returns the items[0] without checking if the array "items" has element in advance. The "items" is grabbed from the method getDependents() of the Contact, where a new empty array may be returned.
>>
>> Please feel free to let me know if my debugging has problem or it can be avoided by other approaches.
>>
>> Best regards,
>>
>> ---------------------------------------------------------------------
>> -
>> -------- 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
>> _______________________________________________
>> Simple-support mailing list
>> Simple-support@...
>> https://lists.sourceforge.net/lists/listinfo/simple-support
>>
>> *********************************************************************
>> *
>> ************* The Royal Bank of Scotland plc. Registered in Scotland
>> No 90312. Registered Office: 36 St Andrew Square, Edinburgh EH2 2YB.
>> Authorised and regulated by the Financial Services Authority.
>>  
>> This e-mail message is confidential and for use by the addressee only.
>> If the message is received by anyone other than the addressee, please
>> return the message to the sender by replying to it and then delete
>> the message from your computer. Internet e-mails are not necessarily
>> secure. The Royal Bank of Scotland plc does not accept responsibility
>> for changes made to this message after it was sent.
>>
>> Whilst all reasonable care has been taken to avoid the transmission
>> of viruses, it is the responsibility of the recipient to ensure that
>> the onward transmission, opening or use of this message and any
>> attachments will not adversely affect its systems or data. No
>> responsibility is accepted by The Royal Bank of Scotland plc in this
>> regard and the recipient should carry out such virus and other checks
>> as it considers appropriate.
>>
>> Visit our website at www.rbs.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
_______________________________________________
Simple-support mailing list
Simple-support@...
https://lists.sourceforge.net/lists/listinfo/simple-support