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Errors accessing WebSphere application migrated from Windows to Linux.

Posted on 2009-03-30
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Last Modified: 2012-05-06
We have decided to move our WebSphere servers to a Linux platform for many reason.  We a currently running on Windows 2003 R2. The new server have been installed on CentOS 5.2, with WAS 6.1 and the latest updates (23). I exported one of my working config from the Windows WAS server and installed it as a new application on my new Linux WAS server.  The install went and the application starts.  However, I am unable to access it and only get HTTP 500 screens.  Below is a copy of the server SystemErr.log. These are logged each time the ported application is started.

3/30/09 16:19:40:983 CDT] 00000020 SystemErr     R java.lang.NullPointerException
[3/30/09 16:19:40:984 CDT] 00000020 SystemErr     R       at com.fc.common.security.FCSecretKeyFactory.initKeyStore(FCSecretKeyFactory.java:146)
[3/30/09 16:19:40:984 CDT] 00000020 SystemErr     R       at com.fc.common.security.FCSecretKeyFactory.getKey(FCSecretKeyFactory.java:60)
[3/30/09 16:19:40:984 CDT] 00000020 SystemErr     R       at com.fc.common.security.Encrypter.cipherInit(Encrypter.java:54)
[3/30/09 16:19:40:984 CDT] 00000020 SystemErr     R       at com.fc.common.security.Encrypter.<init>(Encrypter.java:45)
[3/30/09 16:19:40:984 CDT] 00000020 SystemErr     R       at com.fc.common.configuration.jaxb.FCConfigTranslator.processKeystore(FCConfigTranslator.java:198)
[3/30/09 16:19:40:984 CDT] 00000020 SystemErr     R       at com.fc.common.configuration.jaxb.FCConfigTranslator.toDistributableVersion(FCConfigTranslator.java:78)
[3/30/09 16:19:40:984 CDT] 00000020 SystemErr     R       at com.fc.common.configuration.jaxb.JAXBConfigurationLoader.translateToDistributableVersion(JAXBConfigurationLoader.java:244)
[3/30/09 16:19:40:985 CDT] 00000020 SystemErr     R       at com.fc.common.configuration.jaxb.JAXBConfigurationLoader.loadConfiguration(JAXBConfigurationLoader.java:145)
[3/30/09 16:19:40:985 CDT] 00000020 SystemErr     R       at com.fc.common.configuration.FCConfigurationFactory.getConfiguration(FCConfigurationFactory.java:119)
[3/30/09 16:19:40:985 CDT] 00000020 SystemErr     R       at com.fc.common.configuration.FCConfigurationFactory.initialize(FCConfigurationFactory.java:324)
[3/30/09 16:19:40:985 CDT] 00000020 SystemErr     R       at com.fc.ui.faces.el.propertyloader.CommonPropertyLoader.load(CommonPropertyLoader.java:41)
[3/30/09 16:19:40:985 CDT] 00000020 SystemErr     R       at com.fc.ui.faces.el.propertyloader.AbstractPropertyLoader.contextInitialized(AbstractPropertyLoader.java:34)
[3/30/09 16:19:40:985 CDT] 00000020 SystemErr     R       at com.ibm.ws.wswebcontainer.webapp.WebApp.notifyServletContextCreated(WebApp.java:652)
[3/30/09 16:19:40:985 CDT] 00000020 SystemErr     R       at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinish(WebApp.java:355)
[3/30/09 16:19:40:986 CDT] 00000020 SystemErr     R       at com.ibm.ws.wswebcontainer.webapp.WebApp.initialize(WebApp.java:292)
[3/30/09 16:19:40:986 CDT] 00000020 SystemErr     R       at com.ibm.ws.wswebcontainer.webapp.WebGroup.addWebApplication(WebGroup.java:92)
[3/30/09 16:19:40:986 CDT] 00000020 SystemErr     R       at com.ibm.ws.wswebcontainer.VirtualHost.addWebApplication(VirtualHost.java:157)
[3/30/09 16:19:40:986 CDT] 00000020 SystemErr     R       at com.ibm.ws.wswebcontainer.WebContainer.addWebApp(WebContainer.java:671)
[3/30/09 16:19:40:986 CDT] 00000020 SystemErr     R       at com.ibm.ws.wswebcontainer.WebContainer.addWebApplication(WebContainer.java:624)
[3/30/09 16:19:40:986 CDT] 00000020 SystemErr     R       at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:335)
[3/30/09 16:19:40:986 CDT] 00000020 SystemErr     R       at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:551)
[3/30/09 16:19:40:986 CDT] 00000020 SystemErr     R       at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1274)
[3/30/09 16:19:40:987 CDT] 00000020 SystemErr     R       at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1138)
[3/30/09 16:19:40:987 CDT] 00000020 SystemErr     R       at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:569)
[3/30/09 16:19:40:987 CDT] 00000020 SystemErr     R       at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:817)
[3/30/09 16:19:40:987 CDT] 00000020 SystemErr     R       at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:921)
[3/30/09 16:19:40:987 CDT] 00000020 SystemErr     R       at com.ibm.ws.runtime.component.ApplicationMgrImpl$AppInitializer.run(ApplicationMgrImpl.java:2124)
[3/30/09 16:19:40:987 CDT] 00000020 SystemErr     R       at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:342)
[3/30/09 16:19:40:987 CDT] 00000020 SystemErr     R       at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1473)
[3/30/09 16:19:40:988 CDT] 00000020 SystemErr     R com.fc.common.configuration.FCConfigurationException: Configuration translation error. caused by class java.security.KeyStoreException:null
[3/30/09 16:19:40:988 CDT] 00000020 SystemErr     R       at com.fc.common.configuration.jaxb.FCConfigTranslator.toDistributableVersion(FCConfigTranslator.java:103)
[3/30/09 16:19:40:988 CDT] 00000020 SystemErr     R       at com.fc.common.configuration.jaxb.JAXBConfigurationLoader.translateToDistributableVersion(JAXBConfigurationLoader.java:244)
[3/30/09 16:19:40:988 CDT] 00000020 SystemErr     R       at com.fc.common.configuration.jaxb.JAXBConfigurationLoader.loadConfiguration(JAXBConfigurationLoader.java:145)
[3/30/09 16:19:40:988 CDT] 00000020 SystemErr     R       at com.fc.common.configuration.FCConfigurationFactory.getConfiguration(FCConfigurationFactory.java:119)
[3/30/09 16:19:40:989 CDT] 00000020 SystemErr     R       at com.fc.common.configuration.FCConfigurationFactory.initialize(FCConfigurationFactory.java:324)
[3/30/09 16:19:40:989 CDT] 00000020 SystemErr     R       at com.fc.ui.faces.el.propertyloader.CommonPropertyLoader.load(CommonPropertyLoader.java:41)
[3/30/09 16:19:40:989 CDT] 00000020 SystemErr     R       at com.fc.ui.faces.el.propertyloader.AbstractPropertyLoader.contextInitialized(AbstractPropertyLoader.java:34)
[3/30/09 16:19:40:989 CDT] 00000020 SystemErr     R       at com.ibm.ws.wswebcontainer.webapp.WebApp.notifyServletContextCreated(WebApp.java:652)
[3/30/09 16:19:40:989 CDT] 00000020 SystemErr     R       at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinish(WebApp.java:355)
[3/30/09 16:19:40:989 CDT] 00000020 SystemErr     R       at com.ibm.ws.wswebcontainer.webapp.WebApp.initialize(WebApp.java:292)
[3/30/09 16:19:40:989 CDT] 00000020 SystemErr     R       at com.ibm.ws.wswebcontainer.webapp.WebGroup.addWebApplication(WebGroup.java:92)
[3/30/09 16:19:40:990 CDT] 00000020 SystemErr     R       at com.ibm.ws.wswebcontainer.VirtualHost.addWebApplication(VirtualHost.java:157)
[3/30/09 16:19:40:990 CDT] 00000020 SystemErr     R       at com.ibm.ws.wswebcontainer.WebContainer.addWebApp(WebContainer.java:671)
[3/30/09 16:19:40:990 CDT] 00000020 SystemErr     R       at com.ibm.ws.wswebcontainer.WebContainer.addWebApplication(WebContainer.java:624)
[3/30/09 16:19:40:990 CDT] 00000020 SystemErr     R       at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:335)
[3/30/09 16:19:40:990 CDT] 00000020 SystemErr     R       at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:551)
[3/30/09 16:19:40:990 CDT] 00000020 SystemErr     R       at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1274)
[3/30/09 16:19:40:990 CDT] 00000020 SystemErr     R       at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1138)
[3/30/09 16:19:40:991 CDT] 00000020 SystemErr     R       at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:569)
[3/30/09 16:19:40:991 CDT] 00000020 SystemErr     R       at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:817)
[3/30/09 16:19:40:991 CDT] 00000020 SystemErr     R       at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:921)
[3/30/09 16:19:40:991 CDT] 00000020 SystemErr     R       at com.ibm.ws.runtime.component.ApplicationMgrImpl$AppInitializer.run(ApplicationMgrImpl.java:2124)
[3/30/09 16:19:40:991 CDT] 00000020 SystemErr     R       at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:342)
[3/30/09 16:19:40:991 CDT] 00000020 SystemErr     R       at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1473)
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Question by:WH_Tech
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Accepted Solution

by:
ai_ja_nai earned 500 total points
ID: 24127059
It's a stack trace. You miss the property file.
The property file is not found, but this won't prevent the application to start. Now, since Java won't allow running a program with ambiguous initialization of a variable, the variable is initialized by the programmer with a null pointer and then it's assigned a value read from the property file. But in this case the variable remains at null and this causes a runtime exception raising when that variable is read and found to be pointing at null..

Migrate better your app
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Author Comment

by:WH_Tech
ID: 24927611
Found the issue to be related to the certificate keystore shared between the Websphere server and the IHS server.
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Author Closing Comment

by:WH_Tech
ID: 31564561
Got me looking in another direction.
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