Could anybody explain why I get ConcurrentModificationException with this
code:
function test() {
var str = "<root><guid>[EMAIL
PROTECTED]</guid><contractor>1</contractor><positions><position>abc</position><position>abcd</position><position>abce</position></positions></root>";
var buffer = new Packages.com.mobilebox.test.OrderSaxBuffer();
stringToSAX( str, buffer, "true" );
var resolver = null;
var source = null;
var pipelineUtil = null;
try {
resolver = cocoon.getComponent( SourceResolver.ROLE );
source = resolver.resolveURI( "context://test.xml" );
//var s = new java.io.FileOutputStream( "abc.xml" );
pipelineUtil = cocoon.createObject(
Packages.org.apache.cocoon.components.flow.util.PipelineUtil );
pipelineUtil.processToStream( "view/test.jx", { buffer: buffer },
source.outputStream );
source.outputStream.close();
//s.close();
} finally {
if ( source != null ) {
resolver.release( source );
}
if ( resolver != null )
cocoon.releaseComponent( resolver );
if ( pipelineUtil != null )
cocoon.disposeObject( pipelineUtil );
}
cocoon.sendPage( "view/test.jx", { buffer: buffer } );
}
The code that does not use source but a plain FileOutputStream does not throw.
Here is the detailed exception:
org.apache.avalon.framework.CascadingRuntimeException:
"file:/C:/Dev/nTer/build/webapp/test/flow/main.js", line 64: uncaught
JavaScript exception: at test
(file:/C:/Dev/nTer/build/webapp/test/flow/main.js, Line 64):
java.util.ConcurrentModificationException: File
C:\Dev\nTer\build\webapp\test.xml is already being written by another thread
Original Exception: java.util.ConcurrentModificationException: File
C:\Dev\nTer\build\webapp\test.xml is already being written by another thread
at
org.apache.excalibur.source.impl.FileSource.getOutputStream(FileSource.java:324)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.mozilla.javascript.JavaMembers.get(JavaMembers.java:95)
at org.mozilla.javascript.NativeJavaObject.get(NativeJavaObject.java:100)
at org.mozilla.javascript.ScriptRuntime.getProp(ScriptRuntime.java:723)
at
org.mozilla.javascript.continuations.ContinuationInterpreter.interpret(ContinuationInterpreter.java:694)
at
org.mozilla.javascript.continuations.ContinuationInterpreter.interpret(ContinuationInterpreter.java:190)
at
org.mozilla.javascript.continuations.ContinuationInterpreter.interpret(ContinuationInterpreter.java:138)
at
org.mozilla.javascript.continuations.InterpretedFunctionImpl.call(InterpretedFunctionImpl.java:121)
at org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1244)
at
org.apache.cocoon.components.flow.javascript.fom.FOM_JavaScriptInterpreter.callFunction(FOM_JavaScriptInterpreter.java:686)
at
org.apache.cocoon.components.treeprocessor.sitemap.CallFunctionNode.invoke(CallFunctionNode.java:130)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:49)
at
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:130)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:72)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:126)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:72)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:101)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:336)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:277)
at
org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:103)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:49)
at
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:130)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:72)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:126)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:72)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:101)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:336)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:277)
at org.apache.cocoon.Cocoon.process(Cocoon.java:619)
at org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1074)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:356)
at
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1808)
at
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:525)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1758)
at org.mortbay.http.HttpServer.service(HttpServer.java:879)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:790)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:952)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:807)
at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:197)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:496)
stacktrace[hide]
org.apache.avalon.framework.CascadingRuntimeException:
"file:/C:/Dev/nTer/build/webapp/test/flow/main.js", line 64: uncaught JavaScript
exception:
at test (file:/C:/Dev/nTer/build/webapp/test/flow/main.js, Line 64):
java.util.ConcurrentModificationException: File C:\Dev\nTer\build\webapp\test.xml is
already being written by another thread
at
org.apache.cocoon.components.flow.javascript.fom.FOM_JavaScriptInterpreter.callFunction(FOM_JavaScriptInterpreter.java:695)
at
org.apache.cocoon.components.treeprocessor.sitemap.CallFunctionNode.invoke(CallFunctionNode.java:130)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:49)
at
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:130)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:72)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:126)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:72)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:101)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:336)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:277)
at
org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:103)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:49)
at
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:130)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:72)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:126)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:72)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:101)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:336)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:277)
at org.apache.cocoon.Cocoon.process(Cocoon.java:619)
at org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1074)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:356)
at
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1808)
at
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:525)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1758)
at org.mortbay.http.HttpServer.service(HttpServer.java:879)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:790)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:952)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:807)
at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:197)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:496)
Caused by: java.util.ConcurrentModificationException: File
C:\Dev\nTer\build\webapp\test.xml is already being written by another thread
at
org.apache.excalibur.source.impl.FileSource.getOutputStream(FileSource.java:324)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.mozilla.javascript.JavaMembers.get(JavaMembers.java:95)
at org.mozilla.javascript.NativeJavaObject.get(NativeJavaObject.java:100)
at org.mozilla.javascript.ScriptRuntime.getProp(ScriptRuntime.java:723)
at
org.mozilla.javascript.continuations.ContinuationInterpreter.interpret(ContinuationInterpreter.java:694)
at
org.mozilla.javascript.continuations.ContinuationInterpreter.interpret(ContinuationInterpreter.java:190)
at
org.mozilla.javascript.continuations.ContinuationInterpreter.interpret(ContinuationInterpreter.java:138)
at
org.mozilla.javascript.continuations.InterpretedFunctionImpl.call(InterpretedFunctionImpl.java:121)
at org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1244)
at
org.apache.cocoon.components.flow.javascript.fom.FOM_JavaScriptInterpreter.callFunction(FOM_JavaScriptInterpreter.java:686)
... 34 more
--
__
| / \ | Leszek Gawron // \\
\_\\ //_/ [EMAIL PROTECTED] _\\()//_
.'/()\'. Phone: +48(501)720812 / // \\ \
\\ // recursive: adj; see recursive | \__/ |
