Fixes are available
16.0.0.3: WebSphere Application Server Liberty 16.0.0.3
16.0.0.4: WebSphere Application Server Liberty 16.0.0.4
17.0.0.1: WebSphere Application Server Liberty 17.0.0.1
17.0.0.2: WebSphere Application Server Liberty 17.0.0.2
17.0.0.3: WebSphere Application Server Liberty 17.0.0.3
17.0.0.4: WebSphere Application Server Liberty 17.0.0.4
18.0.0.1: WebSphere Application Server Liberty 18.0.0.1
18.0.0.2: WebSphere Application Server Liberty 18.0.0.2
18.0.0.3: WebSphere Application Server Liberty 18.0.0.3
18.0.0.4: WebSphere Application Server Liberty 18.0.0.4
19.0.0.1: WebSphere Application Server Liberty 19.0.0.1
19.0.0.2: WebSphere Application Server Liberty 19.0.0.2
19.0.0.3: WebSphere Application Server Liberty 19.0.0.3
19.0.0.4: WebSphere Application Server Liberty 19.0.0.4
19.0.0.5: WebSphere Application Server Liberty 19.0.0.5
19.0.0.6: WebSphere Application Server Liberty 19.0.0.6
19.0.0.7: WebSphere Application Server Liberty 19.0.0.7
19.0.0.8: WebSphere Application Server Liberty 19.0.0.8
19.0.0.9: WebSphere Application Server Liberty 19.0.0.9
19.0.0.10: WebSphere Application Server Liberty 19.0.0.10
19.0.0.11: WebSphere Application Server Liberty 19.0.0.11
19.0.0.12: WebSphere Application Server Liberty 19.0.0.12
20.0.0.1: WebSphere Application Server Liberty 20.0.0.1
20.0.0.2: WebSphere Application Server Liberty 20.0.0.2
20.0.0.3: WebSphere Application Server Liberty 20.0.0.3
20.0.0.4: WebSphere Application Server Liberty 20.0.0.4
20.0.0.5: WebSphere Application Server Liberty 20.0.0.5
20.0.0.6: WebSphere Application Server Liberty 20.0.0.6
20.0.0.7: WebSphere Application Server Liberty 20.0.0.7
20.0.0.8: WebSphere Application Server Liberty 20.0.0.8
20.0.0.9: WebSphere Application Server Liberty 20.0.0.9
20.0.0.10: WebSphere Application Server Liberty 20.0.0.10
20.0.0.11: WebSphere Application Server Liberty 20.0.0.11
20.0.0.12: WebSphere Application Server Liberty 20.0.0.12
21.0.0.3: WebSphere Application Server Liberty 21.0.0.3
21.0.0.4: WebSphere Application Server Liberty 21.0.0.4
21.0.0.5: WebSphere Application Server Liberty 21.0.0.5
21.0.0.6: WebSphere Application Server Liberty 21.0.0.6
21.0.0.7: WebSphere Application Server Liberty 21.0.0.7
21.0.0.8: WebSphere Application Server Liberty 21.0.0.8
21.0.0.9: WebSphere Application Server Liberty 21.0.0.9
21.0.0.1: WebSphere Application Server Liberty 21.0.0.1
21.0.0.2: WebSphere Application Server Liberty 21.0.0.2
21.0.0.10: WebSphere Application Server Liberty 21.0.0.10
21.0.0.11: WebSphere Application Server Liberty 21.0.0.11
21.0.0.12: WebSphere Application Server Liberty 21.0.0.12
22.0.0.1: WebSphere Application Server Liberty 22.0.0.1
22.0.0.2: WebSphere Application Server Liberty 22.0.0.2
22.0.0.3: WebSphere Application Server Liberty 22.0.0.3
22.0.0.4: WebSphere Application Server Liberty 22.0.0.4
APAR status
Closed as program error.
Error description
If two or more servlets are initialized at the same time, the user may see an error message like this: [ERROR ] SRVE0276E: Error while initializing Servlet [StatelessApplicationSubclassAsEJB]: javax.servlet.ServletException: SRVE0207E: Uncaught initialization exception created by servlet at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletW rapper.java:401) at [internal classes] Caused by: java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.jav a:881) at java.util.ArrayList$Itr.next(ArrayList.java:853) at org.apache.cxf.jaxrs.JAXRSServiceFactoryBean.setResourceClas ses(JAXRSServiceFactoryBean.java:154) ... 1 more Additionally, the user may see an FFDC report like this: ------Start of DE processing------ = [7/18/16 4:01:09:867 BST] Exception = java.util.ConcurrentModificationException Source = com.ibm.ws.webcontainer.servlet.ServletWrapper.init probeid = 181 Stack Dump = java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.jav a:881) at java.util.ArrayList$Itr.next(ArrayList.java:853) at org.apache.cxf.jaxrs.JAXRSServiceFactoryBean.setResourceClas ses(JAXRSServiceFactoryBean.java:154) at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.setResourceClass es(JAXRSServerFactoryBean.java:300) at com.ibm.ws.jaxrs20.server.LibertyJaxRsServerFactoryBean.doIn it(LibertyJaxRsServerFactoryBean.java:332) at com.ibm.ws.jaxrs20.server.JaxRsWebEndpointImpl.init(JaxRsWeb EndpointImpl.java:62) at com.ibm.websphere.jaxrs.server.IBMRestServlet.init(IBMRestSe rvlet.java:65) at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletW rapper.java:332) at com.ibm.ws.webcontainer.servlet.ServletWrapper.loadOnStartup Check(ServletWrapper.java:1428) at com.ibm.ws.webcontainer.webapp.WebApp.doLoadOnStartupActions (WebApp.java:1181) at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFi nally(WebApp.java:1149) at com.ibm.ws.webcontainer.webapp.WebApp.initialize(WebApp.java :1055) at com.ibm.ws.webcontainer.webapp.WebApp.initialize(WebApp.java :6507) at com.ibm.ws.webcontainer.osgi.DynamicVirtualHost.startWebApp( DynamicVirtualHost.java:446) at com.ibm.ws.webcontainer.osgi.DynamicVirtualHost.startWebAppl ication(DynamicVirtualHost.java:441) at com.ibm.ws.webcontainer.osgi.WebContainer.startWebApplicatio n(WebContainer.java:1013) at com.ibm.ws.webcontainer.osgi.WebContainer.access$000(WebCont ainer.java:101) at com.ibm.ws.webcontainer.osgi.WebContainer$2.run(WebContainer .java:837) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPool Executor.java:1177) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoo lExecutor.java:642) at java.lang.Thread.run(Thread.java:795) This will prevent the web application from starting successfully.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server Liberty - Web Services (JAX-WS, JAX- * * RS) * **************************************************************** * PROBLEM DESCRIPTION: ConcurrentModificationException in * * org.apache.cxf.jaxrs.JAXRSServiceFactor * * yBean * **************************************************************** * RECOMMENDATION: * **************************************************************** If two or more servlets are initialized at the same time, the user may see an error message like this: [ERROR ] SRVE0276E: Error while initializing Servlet [StatelessApplicationSubclassAsEJB]: javax.servlet.ServletException: SRVE0207E: Uncaught initialization exception created by servlet at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapp er.java:401) at [internal classes] Caused by: java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:88 1) at java.util.ArrayList$Itr.next(ArrayList.java:853) at org.apache.cxf.jaxrs.JAXRSServiceFactoryBean.setResourceClasses( JAXRSServiceFactoryBean.java:154) ... 1 more Additionally, the user may see an FFDC report like this: ------Start of DE processing------ = [7/18/16 4:01:09:867 BST] Exception = java.util.ConcurrentModificationException Source = com.ibm.ws.webcontainer.servlet.ServletWrapper.init probeid = 181 Stack Dump = java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:88 1) at java.util.ArrayList$Itr.next(ArrayList.java:853) at org.apache.cxf.jaxrs.JAXRSServiceFactoryBean.setResourceClasses( JAXRSServiceFactoryBean.java:154) at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.setResourceClasses(J AXRSServerFactoryBean.java:300) at com.ibm.ws.jaxrs20.server.LibertyJaxRsServerFactoryBean.doInit(L ibertyJaxRsServerFactoryBean.java:332) at com.ibm.ws.jaxrs20.server.JaxRsWebEndpointImpl.init(JaxRsWebEndp ointImpl.java:62) at com.ibm.websphere.jaxrs.server.IBMRestServlet.init(IBMRestServle t.java:65) at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapp er.java:332) at com.ibm.ws.webcontainer.servlet.ServletWrapper.loadOnStartupChec k(ServletWrapper.java:1428) at com.ibm.ws.webcontainer.webapp.WebApp.doLoadOnStartupActions(Web App.java:1181) at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinall y(WebApp.java:1149) at com.ibm.ws.webcontainer.webapp.WebApp.initialize(WebApp.java:105 5) at com.ibm.ws.webcontainer.webapp.WebApp.initialize(WebApp.java:650 7) at com.ibm.ws.webcontainer.osgi.DynamicVirtualHost.startWebApp(Dyna micVirtualHost.java:446) at com.ibm.ws.webcontainer.osgi.DynamicVirtualHost.startWebApplicat ion(DynamicVirtualHost.java:441) at com.ibm.ws.webcontainer.osgi.WebContainer.startWebApplication(We bContainer.java:1013) at com.ibm.ws.webcontainer.osgi.WebContainer.access$000(WebContaine r.java:101) at com.ibm.ws.webcontainer.osgi.WebContainer$2.run(WebContainer.jav a:837) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExec utor.java:1177) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExe cutor.java:642) at java.lang.Thread.run(Thread.java:795) This will prevent the web application from starting successfully.
Problem conclusion
The fix for this APAR adds synchronization logic to prevent the ConcurrentModificationException. The fix for this APAR is currently targeted for inclusion in fix pack 16.0.0.3. Please refer to the Recommended Updates page for delivery information: http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
Temporary fix
Comments
APAR Information
APAR number
PI67586
Reported component name
WAS LIBERTY COR
Reported component ID
5725L2900
Reported release
855
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-08-15
Closed date
2016-08-16
Last modified date
2016-08-16
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
WAS LIBERTY COR
Fixed component ID
5725L2900
Applicable component levels
R855 PSY
UP
Document Information
Modified date:
04 May 2022