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Re: Web Service fails: add is not a supported operation in com.webobjects.foundation.NSArray ?
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Re: Web Service fails: add is not a supported operation in com.webobjects.foundation.NSArray ?


  • Subject: Re: Web Service fails: add is not a supported operation in com.webobjects.foundation.NSArray ?
  • From: Pascal Robert <email@hidden>
  • Date: Wed, 10 Dec 2008 13:23:32 -0500

Maybe I doing something wrong, but I'm building a SOAP service with WO 5.4.3, and I go the same error.

Caused by: java.lang.UnsupportedOperationException: add is not a supported operation in com.webobjects.foundation.NSArray
at com.webobjects.foundation.NSArray.add(NSArray.java:965)
at org.apache.axis.utils.JavaUtils.convert(JavaUtils.java:519)
at org .apache .axis.providers.java.RPCProvider.processMessage(RPCProvider.java:118)
at org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java: 323)
... 13 more


Method that I call :

public static NSMutableArray<Response> insertContacts(Header header, NSArray<Contact> contacts, User user) {
NSMutableArray<Response> responses = new NSMutableArray<Response>();
for (Iterator<Contact> itContacts = contacts.iterator(); itContacts.hasNext();) {
responses.addObject(insertContact(header, itContacts.next(), user));
}
return responses;
}


Thee test client is built with Axis 1.4. I switched to ArrayList<Response> and to List<Contact> and now it's working fine.

This is a bug specific to WebServices It is fixed in WO 5.4.2

Pierre
--
Pierre Frisch
email@hidden


On Apr 24, 2008, at 9:29, Chuck Hill wrote:

I think... This was a bug. The add() method to support Java collections was added to NSArray as unimplemented BUT someone forgot to add an implmentation of it to NSMutableArray. Oops. So when you call add() on NSMutableArrary you get this message. Wonder correctly implements this method as does some version of WO 5.4.

Chuck


On Apr 24, 2008, at 9:26 AM, Alan Ward wrote:


um, how about using an NSMutableArray? NSArray is immutable and does not implement add.


Alan

On Apr 24, 2008, at 7:18 AM, Juergen Lorenz Simon wrote:

Hello all,

I'm trying to implement a simple web service. One of the webservice operations takes an NSArray as parameter.

	public static void foo(NSArray bar);

When the call is made, the following error pops up:

[2008-04-24 12:12:13 CEST] <WorkerThread8> AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/ envelope/}Server.userException
faultSubcode:
faultString: java.lang.UnsupportedOperationException: add is not a supported operation in com.webobjects.foundation.NSArray
faultActor:
faultNode:
faultDetail:
{http://xml.apache.org/axis/}stackTrace: java.lang.UnsupportedOperationException: add is not a supported operation in com.webobjects.foundation.NSArray
at com.webobjects.foundation.NSArray.add(NSArray.java:965)
at org.apache.axis.utils.JavaUtils.convert(JavaUtils.java:465)
at org .apache .axis.providers.java.RPCProvider.processMessage(RPCProvider.java: 235)
at org .apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java: 333)
at org .apache .axis.strategies.InvocationStrategy.visit(InvocationStrategy.java: 71)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:150)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:120)
at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java: 481)
at org.apache.axis.server.AxisServer.invoke(AxisServer.java:323)
at com .webobjects .appserver ._private.WOWebService.performActionNamed(WOWebService.java:375)
at com .webobjects .appserver ._private .WOActionRequestHandler ._handleRequest(WOActionRequestHandler.java:240)
at com .webobjects .appserver ._private .WOActionRequestHandler.handleRequest(WOActionRequestHandler.java: 142)
at com .webobjects .appserver ._private .WOWebServiceRequestHandler .handleRequest(WOWebServiceRequestHandler.java:95)
at com .webobjects .appserver.WOApplication.dispatchRequest(WOApplication.java:1306)
at com .webobjects .appserver._private.WOWorkerThread.runOnce(WOWorkerThread.java:173)
at com .webobjects .appserver._private.WOWorkerThread.run(WOWorkerThread.java:254)
at java.lang.Thread.run(Thread.java:613)


	{http://xml.apache.org/axis/}isRuntimeException: true

I was able to get this working by using ProjectWonder. Apparently the NSArray class is patched
in PW and won't blow up when add(..) is called. Although we use PW a lot anyway and thus have
a workaround, I would like to know if someone else had the problem and eliminated it? Should I
use ordinary java collections (like List) in the parameters instead of NSArray?



Thanks!

PS: WO 5.3 on OS X 10.5.2 (using woswitch.sh), Eclipse 3.3, PW4


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Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems.
http://www.global-village.net/products/practical_webobjects






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-------------------------------------------------------
Pascal Robert

http://www.macti.ca
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http://www.linkedin.com/in/macti

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