PM07686: GENERAL TRACING CAUSES NULLPOINTEREXCEPTION

APAR status

• Closed as program error.

Error description

• When enabling traces for com.ibm.wps.*=all, a
  NullPointerException is thrown and no page is being rendered.
  Instead, an HTTP error 404 is returned. The following
  stacktrace can be found in trace.log:
  
  java.lang.NullPointerException
  at com.ibm.wps.resolver.accessors.url.PocUrlOnContext
  .reset(PocUrlOnContext.java:284)
  at com.ibm.wps.resolver.accessors.url.PocURLFactoryImpl
  .newLookupURL(PocURLFactoryImpl.java:472)
  at com.ibm.wps.resolver.accessors.url.PocURLFactoryImpl
  .newLookupURL(PocURLFactoryImpl.java:446)
  at com.ibm.wps.resolver.accessors.url.PocURLFactoryImpl
  .newURL(PocURLFactoryImpl.java:642)
  at com.ibm.wps.theme.extensions.BookmarkMetaItem
  .createAndWriteUrl(BookmarkMetaItem.java:279)
  at com.ibm.wps.theme.extensions.BookmarkMetaItem
  .getText(BookmarkMetaItem.java:147)
  at com.ibm.wps.theme.plugin.tags.ThemeExtensionItemTextTag
  .getValue(ThemeExtensionItemTextTag.java:51)
  at com.ibm.wps.theme.plugin.tags
  .ThemeExtensionItemLocalizedValueTag
  .doStartTag(ThemeExtensionItemLocalizedValueTag.java:80)
  at com.ibm._jsp._Default._jspx_meth_portal$1theme$1ext_themeExte
  
  nsionItemText_0(_Default.java:6092)
  at com.ibm._jsp._Default._jspService(_Default.java:998)
  

Local fix

• Turn off tracing for com.ibm.wps.state.accessors.url
  .EngineURLOnRequest
  

Problem summary

• When enabling traces for com.ibm.wps.*=all, a
  NullPointerException is thrown and no page is being rendered.
  Instead, an HTTP error 404 is given. The following stacktrace
  can be found in trace.log:
  
        java.lang.NullPointerException
        at
  com.ibm.wps.resolver.accessors.url.PocUrlOnContext.reset(PocUrlO
  nContext.java:284)
        at
  com.ibm.wps.resolver.accessors.url.PocURLFactoryImpl.newLookupUR
  L(PocURLFactoryImpl.java:472)
        at
  com.ibm.wps.resolver.accessors.url.PocURLFactoryImpl.newLookupUR
  L(PocURLFactoryImpl.java:446)
        at
  com.ibm.wps.resolver.accessors.url.PocURLFactoryImpl.newURL(PocU
  RLFactoryImpl.java:642)
        at
  com.ibm.wps.theme.extensions.BookmarkMetaItem.createAndWriteUrl(
  BookmarkMetaItem.java:279)
        at
  com.ibm.wps.theme.extensions.BookmarkMetaItem.getText(BookmarkMe
  taItem.java:147)
        at
  com.ibm.wps.theme.plugin.tags.ThemeExtensionItemTextTag.getValue
  (ThemeExtensionItemTextTag.java:51)
        at
  com.ibm.wps.theme.plugin.tags.ThemeExtensionItemLocalizedValueTa
  g.doStartTag(ThemeExtensionItemLocalizedValueTag.java:80)
        at
  com.ibm._jsp._Default._jspx_meth_portal$1theme$1ext_themeExtensi
  onItemText_0(_Default.java:6092)
        at com.ibm._jsp._Default._jspService(_Default.java:998)
  

Problem conclusion

• Tracing of EngineURLOnRequest used instance variables before
  they were initialized. This APAR ensures that those instance
  variables are properly initialized prior to first use.
  
  Failing Module(s):
     Engine: State handling
  
  Affected Users:
     Developers
  
  Version Information:
      Portal Version(s): 6.1.0.3
       Pre-Requisite(s): ---
        Co-Requisite(s): ---
  
  Manuel Steps:
     None
  
  Platform Specific:
     This fix applies to all platforms.
  
  PM07686 is part of Cumulative Fix 02 for Portal 6103.
  
  The Cumulative Fix is available from Fix Central:
  
  http://www.ibm.com/eserver/support/fixes/fixcentral/swgquickorde
  r?apar=PM07968&productid=WebSphere%20Portal&brandid=5
  
  You may need to type or paste the complete address into your Web
  browser.
  

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

  WEBSPHERE PORTA

• Fixed component ID

  5724E7600

Applicable component levels

• R61C PSY

     UP