1350192 - Exception "java.lang.IncompatibleClassChangeError: Implementing class" thrown while viewing a CR report by Umanaged RAS SDK

• Exception thrown while viewing a CR report by Umanaged RAS Java SDK.
• Error 500--Internal Server Error                                                                                                   
  java.lang.IncompatibleClassChangeError: Implementing class 

1. Set up umanaged RAS Java SDK in a RAS environment using the sample jsp named OpenReport from https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/10a5bc2e-2b81-2b10-38b8-b30c152c0929
2. Copy all the jars from folder C:\Program Files\Business Objects\common\3.5\java\lib and it's sub folders to lib of this unmanged RAS web application.
3. Deploy this web app to Weblogic which is installed on Redhat Linux.
4. Set CLASSPATH :/opt/software/bea/jdk150_11/lib:/opt/software/bea/jdk150_11/jre/lib
5. View a report that contains a graph and subreport by this web application.
6. Exception "java.lang.IncompatibleClassChangeError: Implementing class" is thrown.

• CR Server XIR2
• RedHat Linux Enterprse 5.2
• Weblogic 10.01 Linux

• Either there are some mismatched jar files or there is error with the classpath.
• The error message hints there is incompatibility between MetafileRenderer.jar and ReportViewer.jar. Typically, this could be ignored as the MetafileRenderer.jar classes should take precedence over ReportViewer.jar classes.

• Remove ReportViewer.jar and ReportPrinter.jar files from this web application and restart web application.
• ReportViewer.jar and ReportPrinter.jar are the client-side Java Report viewer applets and are not required in the Java Web App Server lib folder.

KBA , BI-DEV-JAV , BI Software Development Kits (SDKs) - Java , Problem