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Class Loader Problem
kosta
Hello BIRT community,
I wanted to know about the js.jar file used in BIRT. It seems that there are the Rhino libraries. Now we have very strange situation with the class loader. The main application uses Rhino as library and when the BIRT module is started SecurityException is thrown because the classloader finds FunctionNode twice and then probably the SHA1-Digest code is used on the wrong class (Rhino jar) and fails.
Is this issue known?
Thanks for any hint and suggestion.
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Comments
JasonW
If you already have js.jar in the classpath, try removing it from BIRT.
Jason
kosta
Hi, Jason,<br />
<br />
when I remove it from the classpath an Exception occures:<br />
<pre class='_prettyXprint _lang-auto _linenums:0'>
Exception in thread "main" java.lang.NoClassDefFoundError: org/mozilla/javascript/FunctionNode
at org.eclipse.birt.core.data.ExpressionUtil.extractColumnExpressions(ExpressionUtil.java:282)
at org.eclipse.birt.core.data.ExpressionUtil.extractColumnExpressions(ExpressionUtil.java:207)
at org.eclipse.birt.report.model.parser.CompatibleMiscExpressionState.setupBoundDataColumns(CompatibleMiscExpressionState.java:174)
at org.eclipse.birt.report.model.parser.CompatibleMiscExpressionState.end(CompatibleMiscExpressionState.java:96)
at org.eclipse.birt.report.model.util.XMLParserHandler.endElement(XMLParserHandler.java:176)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:601)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1782)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2938)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:395)
at org.eclipse.birt.report.model.parser.ModuleReader.readModule(ModuleReader.java:94)
at org.eclipse.birt.report.model.parser.LibraryReader.read(LibraryReader.java:164)
at org.eclipse.birt.report.model.core.DesignSessionImpl.openLibrary(DesignSessionImpl.java:562)
at org.eclipse.birt.report.model.core.DesignSessionImpl.openLibrary(DesignSessionImpl.java:533)
at org.eclipse.birt.report.model.api.SessionHandleImpl.openLibrary(SessionHandleImpl.java:399)
...
Caused by: java.lang.ClassNotFoundException: org.mozilla.javascript.FunctionNode
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 27 more
</pre>
Very stange behaviour. Maybe this one reason more for updating birt to the newest version.
JasonW
What version of BIRT are you using?
Jason
kosta
2.6.2 as BIRT API.
JasonW
Understood. Can you try 3.7? Remove the js.jar from the web-inf/lib of the viewer.
Jason
