PH59719: REPORT VIEWER FAILS TO DISPLAY AND THROWS JAVA.LANG.NOCLASSDEFFOUNDERROR

APAR status

• Closed as program error.

Error description

• Reproducible with the following steps:
  a) Create simple Report.
  b) Open Report Designer perspective and select the View Report
  icon on the toolbar or alternatively Run -> View Report ->
  Select any option eg As Doc, in Web Viewer any of them then fail
  to display the report or any apparent error at all.
  
  The error log shows an Unhandled event loop exception
  stacktrace:
  java.lang.NoClassDefFoundError: org.eclipse.jetty.util.Decorator
  
  at
  org.eclipse.birt.report.viewer.utilities.ViewerWebApp.start(Unkn
  own Source)
  at
  org.eclipse.birt.report.viewer.utilities.AppServerWrapper.startJ
  ettyServer(Unknown Source)
  at
  org.eclipse.birt.report.viewer.utilities.AppServerWrapper.start(
  Unknown Source)
  at
  org.eclipse.birt.report.viewer.utilities.WebappAccessor.start(Un
  known Source)
  at
  org.eclipse.birt.report.viewer.utilities.WebViewer.startWebApp(U
  nknown Source)
  at
  org.eclipse.birt.report.viewer.utilities.WebViewer.display(Unkno
  wn Source)
  at
  org.eclipse.birt.report.viewer.utilities.WebViewer.display(Unkno
  wn Source)
  at
  org.eclipse.birt.report.designer.ui.actions.PreviewSupport.previ
  ew(Unknown Source)
  at
  org.eclipse.birt.report.designer.ui.actions.PreviewSupport$3.wid
  getSelected(Unknown Source)
  at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown
  Source)
  at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
  >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>.
  Caused by: java.lang.ClassNotFoundException:
  org.eclipse.jetty.util.Decorator cannot be found by
  org.eclipse.jetty.servlet_9.4.5.v20170502
  at
  org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(
  Unknown Source)
  at
  org.eclipse.osgi.internal.loader.BundleLoader.findClass(Unknown
  Source)
  at
  org.eclipse.osgi.internal.loader.BundleLoader.findClass(Unknown
  Source)
  at
  org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(Unk
  nown Source)
  at java.lang.ClassLoader.loadClass(Unknown Source)
  
  This issue is caused by the inclusion of multiple
  org.eclipse.jetty plugins within RBD configuration in turn
  causing a conflict with the viewer.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * EGL users implementing the report viewer                     *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * Unhandled event loop exception caused by the inclusion of    *
  * multiple org.eclipse.jetty plugins within the RBD            *
  * configuration                                                *
  * causing a conflict with the viewer.                          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• Fixed in 971
  

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

  RATL BUS DEV

• Fixed component ID

  5724S5000

Applicable component levels