Direct links to fixes
APAR status
Closed as program error.
Error description
You might not be able to start your SCA application because of a NullPointerException such as the following: Caused by: java.lang.NullPointerException at java.util.concurrent.ConcurrentHashMap.hash(ConcurrentHashMap.ja va:220) at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.jav a:833) at com.ibm.ws.sca.internal.managed.WASClassLoaderNormalizer.normali ze(WASClassLoaderNormalizer.java:51) at com.ibm.ws.sca.resources.loader.ClassLoaderRegistry.normalize(Cl assLoaderRegistry.java:244) at com.ibm.ws.sca.resources.loader.ClassLoaderRegistry.lookup(Class LoaderRegistry.java:227) at com.ibm.ws.sca.resources.loader.ClassLoaderRegistry.lookup(Class LoaderRegistry.java:98) at com.ibm.ws.sca.resources.loader.ResourceAccessor$ResourceRegistr y.lookup(ResourceAccessor.java:456) at com.ibm.ws.sca.resources.loader.ResourceAccessor$ResourceRegistr y.access$100(ResourceAccessor.java:433) at com.ibm.ws.sca.resources.loader.ResourceAccessor.getLocalResourc es(ResourceAccessor.java:297) at com.ibm.ws.sca.resources.loader.ResourceAccessor.getLocalResourc es(ResourceAccessor.java:285) at com.ibm.ws.sca.resources.discovery.impl.ModuleDiscovererImpl.dis cover(ModuleDiscovererImpl.java:149) at com.ibm.ws.sca.resources.discovery.impl.ModuleDiscovererImpl.get Modules(ModuleDiscovererImpl.java:74) at com.ibm.ws.sca.internal.container.impl.ContainerImpl.start(Conta inerImpl.java:994) at com.ibm.ws.sca.internal.container.impl.ContainerImpl.start(Conta inerImpl.java:601) If the error occurs, a server restart is required to correct the issue. The error occurs because the SCA class loader cache was freed by the java garbage collector, resulting in a NullPointerException.
Local fix
n/a
Problem summary
**************************************************************** * USERS AFFECTED: IBM Business Process Manager (BPM) * * Advanced * **************************************************************** * PROBLEM DESCRIPTION: You might not be able to start your * * SCA application because of a * * NullPointerException such as the * * following: Caused by: * * java.lang.NullPointerException * * at * * java.util.concurrent.ConcurrentHashMap. * * hash(ConcurrentHashMap.java:220) at * * java.util.concurrent.ConcurrentHashMap. * * get(ConcurrentHashMap.java:833) at * * com.ibm.ws.sca.internal.managed.WASClas * * sLoaderNormalizer.normali * * ze(WASClassLoaderNormalizer.java:51)at * * com.ibm.ws.sca.resources.loader.ClassLo * * aderRegistry.normalize(Cl * * assLoaderRegistry.java:244) at * * com.ibm.ws.sca.resources.loader.ClassLo * * aderRegistry.lookup(Class * * LoaderRegistry.java:227) at * * com.ibm.ws.sca.resources.loader.ClassLo * * aderRegistry.lookup(ClassLoaderRegistry * * .java:98) at * * com.ibm.ws.sca.resources.loader.Resourc * * eAccessor$ResourceRegistry.lookup(Resou * * rceAccessor.java:456) at * * com.ibm.ws.sca.resources.loader.Resourc * * eAccessor$ResourceRegistry.access$100(R * * esourceAccessor.java:433) at * * com.ibm.ws.sca.resources.loader.Resourc * * eAccessor.getLocalResources(ResourceAcc * * essor.java:297) at * * com.ibm.ws.sca.resources.loader.Resourc * * eAccessor.getLocalResources(ResourceAcc * * essor.java:285) at * * com.ibm.ws.sca.resources.discovery.impl * * .ModuleDiscovererImpl.discover(ModuleDi * * scovererImpl.java:149) at * * com.ibm.ws.sca.resources.discovery.impl * * .ModuleDiscovererImpl.getModules(Module * * DiscovererImpl.java:74) at * * com.ibm.ws.sca.internal.container.impl. * * ContainerImpl.start(ContainerImpl.java: * * 994) at * * com.ibm.ws.sca.internal.container.impl. * * ContainerImpl.start(ContainerImpl.java: * * 601) * * If the error occurs, a server * * restart is required to correct * * the issue. The error occurs because * * the SCA class loader cache * * was freed by the java garbage * * collector, resulting in a * * NullPointerException. * **************************************************************** * RECOMMENDATION: * **************************************************************** When you stop the SCA applications and then restart them, you might occasionally encounter this NullPointerException issue. The code fix resolves the issue by finding a correct class loader and rebuilding the cache again if the current class loader from cache is null.
Problem conclusion
A fix is available for IBM Business Process Manager V8.0.1.2. With the applied fix, the system will find the right class loader for the stopped applications, thereby avoiding the NullPointerException On Fix Central (http://www.ibm.com/support/fixcentral), search for JR50907: 1. Select IBM Business Process Manager with your edition from the product selector, the installed version to the fix pack level, and your platform; and then click Continue. 2. Select APAR or SPR, enter JR50907, and click Continue. When you download fix packages, ensure that you also download the readme file for each fix. Review each readme file for additional installation instructions and information about the fix.
Temporary fix
Comments
APAR Information
APAR number
JR50907
Reported component name
BPM ADVANCED
Reported component ID
5725C9400
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2014-07-30
Closed date
2014-10-23
Last modified date
2015-06-30
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
BPM ADVANCED
Fixed component ID
5725C9400
Applicable component levels
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSFTN5","label":"IBM Business Process Manager Advanced"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
31 August 2023