JR50642: CMVC 235824 - NoClassDefFoundError exception is thrown caused by NullPointerException in SEOURLMapperImpl class.

APAR status

• Closed as program error.

Error description

• A NoClassDefFoundError caused by a NPE in the SEOURLMapperSource
  class is seen in the logs The following exception is thrown in
  the logs:
  
  [6/5/14 17:57:47:881 UTC] 000000df webapp        E
  com.ibm.ws.webcontainer.webapp.WebApp logServletError SRVE0293E:
  [Servlet Error]-[Stores Request Servlet]:
  java.lang.NoClassDefFoundError:
  com.ibm.commerce.seo.url.helpers.SEOURLMapperSource
  (initialization failure)
  
          at
  java.lang.J9VMInternals.initialize(J9VMInternals.java:140)
  
          at
  com.ibm.commerce.webcontroller.RuntimeServletFilter.init(Runtime
  ServletFilter.java:152)
  
          at
  com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.init(Filter
  InstanceWrapper.java:142)
  
          at
  com.ibm.ws.webcontainer.filter.WebAppFilterManager._loadFilter(W
  ebAppFilterManager.java:548)
  
          at
  com.ibm.ws.webcontainer.filter.WebAppFilterManager.loadFilter(We
  bAppFilterManager.java:462)
  
          at
  com.ibm.ws.webcontainer.filter.WebAppFilterManager.getFilterInst
  anceWrapper(WebAppFilterManager.java:319)
  
          at
  com.ibm.ws.webcontainer.filter.WebAppFilterManager.getFilterChai
  n(WebAppFilterManager.java:379)
  
          at
  com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebA
  ppFilterManager.java:860)
  
          at
  com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(Ser
  vletWrapper.java:939)
  
          at
  com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(Ser
  vletWrapper.java:507)
  
          at
  com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest
  (ServletWrapperImpl.java:181)
  
          at
  com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:
  3954)
  
          at
  com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.j
  ava:276)
  
          at
  com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.
  java:945)
  
          at
  com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContai
  ner.java:1592)
  
          at
  com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLin
  k.java:191)
  
          at
  com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscr
  imination(HttpInboundLink.java:453)
  
          at
  com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRe
  quest(HttpInboundLink.java:515)
  
          at
  com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequ
  est(HttpInboundLink.java:306)
  
          at
  com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpI
  nboundLink.java:277)
  
          at
  com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sen
  dToDiscriminators(NewConnectionInitialReadCallback.java:214)
  
          at
  com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.com
  plete(NewConnectionInitialReadCallback.java:113)
  
          at
  com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureComp
  leted(AioReadCompletionListener.java:175)
  
          at
  com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyn
  cFuture.java:217)
  
          at
  com.ibm.io.async.AsyncChannelFuture$1.run(AsyncChannelFuture.jav
  a:205)
  
          at
  com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1656)
  
  Caused by: java.lang.ExceptionInInitializerError
  
          at
  java.lang.J9VMInternals.initialize(J9VMInternals.java:222)
  
          at java.lang.Class.forNameImpl(Native Method)
  
          at java.lang.Class.forName(Class.java:184)
  
          at
  com.ibm.commerce.seo.url.helpers.SEOURLMapperSource.createMapper
  Instance(SEOURLMapperSource.java:212)
  
          at
  com.ibm.commerce.seo.url.helpers.SEOURLMapperSource.readSEOConfi
  guration(SEOURLMapperSource.java:171)
  
          at
  com.ibm.commerce.seo.url.helpers.SEOURLMapperSource.<init>(SEOUR
  LMapperSource.java:62)
  
          at
  com.ibm.commerce.seo.url.helpers.SEOURLMapperSource.<clinit>(SEO
  URLMapperSource.java:58)
  
          at java.lang.J9VMInternals.initializeImpl(Native Method)
  
          at
  java.lang.J9VMInternals.initialize(J9VMInternals.java:200)
  
          ... 25 more
  
  Caused by: java.lang.NullPointerException
  
          at
  com.ibm.commerce.seo.url.helpers.SEOURLMapperImpl.<clinit>(SEOUR
  LMapperImpl.java:117)
  
          at java.lang.J9VMInternals.initializeImpl(Native Method)
  

Local fix

• A WebSphere Commerce server restart can resolve this problem.
  

Problem summary

• USERS AFFECTED:
  Customers using SEO in version 7.0 environment.
  
  PROBLEM ABSTRACT:
  NoClassDefFoundError exception is thrown intermittently caused
  by NullPointerException in SEOURLMapperImpl class.
  
  BUSINESS IMPACT:
  Problem is intermittent and can normally be worked around with a
  server restart.
  
  RECOMMENDATION:
  

Problem conclusion

• Modified SEOURLMapperImpl to ensure that any parameter retrieved
   from the storeWebModule is retrieved only when the
  storeWebModule is initialized.
  
  -------------------------------------------------------------
  The latest available maintenance information can be obtained
  from the Recommended Fixes for WebSphere Commerce technote:
  http://www.ibm.com/support/docview.wss?rs=3046&uid=swg21261296
  

Temporary fix

Comments

APAR Information

• 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

  WC BUS EDITION

• Fixed component ID

  5724I3800

Applicable component levels

• R700 PSY

     UP