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Posted to java-dev@axis.apache.org by "Davanum Srinivas (JIRA)" <ji...@apache.org> on 2008/03/09 00:03:46 UTC
[jira] Commented: (AXIS2-3565) NullpointerException in
org.apache.axis2.deployment.util.Utils.loadHandler method
[ https://issues.apache.org/jira/browse/AXIS2-3565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12576646#action_12576646 ]
Davanum Srinivas commented on AXIS2-3565:
-----------------------------------------
Fixed in svn revision 635108
> NullpointerException in org.apache.axis2.deployment.util.Utils.loadHandler method
> ---------------------------------------------------------------------------------
>
> Key: AXIS2-3565
> URL: https://issues.apache.org/jira/browse/AXIS2-3565
> Project: Axis 2.0 (Axis2)
> Issue Type: Bug
> Components: kernel
> Affects Versions: 1.3
> Environment: Windows XP, Running inside CLIF performance Tester.(http://clif.objectweb.org/)
> Reporter: Srikanth Seshadri
>
> A Nullpointer Exception is thrown when initializing org.apache.axis2.client.ServiceClient. The stack trace is given below
> =================================================================
> org.apache.axis2.deployment.DeploymentException
> at org.apache.axis2.deployment.util.Utils.loadHandler(Utils.java:134)
> at org.apache.axis2.deployment.AxisConfigBuilder.processPhaseList(AxisConfigBuilder.java:405)
> at org.apache.axis2.deployment.AxisConfigBuilder.processPhaseOrders(AxisConfigBuilder.java:433)
> at org.apache.axis2.deployment.AxisConfigBuilder.populateConfig(AxisConfigBuilder.java:133)
> at org.apache.axis2.deployment.DeploymentEngine.populateAxisConfiguration(DeploymentEngine.java:615)
> at org.apache.axis2.deployment.FileSystemConfigurator.getAxisConfiguration(FileSystemConfigurator.java:115)
> at org.apache.axis2.context.ConfigurationContextFactory.createConfigurationContext(ConfigurationContextFactory.java:64)
> at org.apache.axis2.context.ConfigurationContextFactory.createConfigurationContextFromFileSystem(ConfigurationContextFactory.java:180)
> at org.apache.axis2.client.ServiceClient.configureServiceClient(ServiceClient.java:146)
> at org.apache.axis2.client.ServiceClient.<init>(ServiceClient.java:139)
> at org.apache.axis2.client.ServiceClient.<init>(ServiceClient.java:228)
> at org.objectweb.isac.plugin.webserviceloadinjector.SessionObject.doAdd(Unknown Source)
> at org.objectweb.isac.plugin.webserviceloadinjector.SessionObject.doSample(Unknown Source)
> at org.objectweb.clif.scenario.isac.engine.ExecutionThread.doWork(ExecutionThread.java:155)
> at org.objectweb.clif.scenario.isac.engine.ExecutionThread.run(ExecutionThread.java:251)
> Caused by: java.lang.NullPointerException
> at org.apache.axis2.deployment.util.Utils.loadHandler(Utils.java:118)
> ... 14 more
> =================================================================
> From the source code debugging I figured out that the exception is happening on the following line in the org.apache.axis2.deployment.util.Utils.loadHandler method...
> =========================================
> if(handlerClass.getPackage().getName().equals("org.apache.axis2.engine")){
> String name = handlerClass.getName();
> log.warn("Dispatcher " + name + " is now deprecated.");
> if(name.indexOf("InstanceDispatcher")!=-1) {
> log.warn("Please remove the entry for " + handlerClass.getName() + "from axis2.xml");
> } else {
> log.warn("Please edit axis2.xml " +
> "and replace with the same class in org.apache.axis2.dispatchers package");
> }
> }
> ==============================================
> The "getPackage" call in the "if" statement's condition can return null when the java.lang.Package object is not created by the class loader. This situation is valid as stated in this methods contract.
> This is what exactly happens in case of CLIF class loader. Hence the null pointer exception. So check has to be introduced to validate the condition.
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