[WLS 10.3.0 - 10.3.3]RANDOM JSP COMPILATIONEXCEPTION: THE TAG HANDLER CLASS WAS NOT FOUND (Doc ID 1271610.1)

Last updated on JUNE 09, 2016

Applies to:

Oracle Weblogic Server - Version 10.3 to 10.3.3
Information in this document applies to any platform.

Symptoms

When using the JSP precompiler to compile an EAR file you will notice that the compilation sometimes fails with 'weblogic.servlet.jsp.CompilationException' error.

For all the different iterations the ear file & environment isn't modified exactly identical for each of the runs.

e.g. By running with the below command the stack trace is provided below:
C:\JSP >java -classpath C:\bea1033\wlserver_10.3\server\lib\weblogic.jar weblogic.appc

weblogic.utils.compiler.ToolFailureException: jspc failed with errors :weblogic.servlet.jsp.CompilationException: test.tag:104:10: The tag handler class was not found "jsp_servlet._tags.__testing_tag".
<tags:testing="${localWorkerCheckInfo}"/>
^--------------------------^
generateWorkerInfo.tag:104:10: The tag handler class was not found "jsp_servlet._tags.__testing_tag".
<tags:testing="${localWorkerCheckInfo}"/>
^--------------------------^
individualViewBody.jsp:15:5: The tag handler class was not found "jsp_servlet._tags.__test_tag".
<tags:test/>
....
....
at weblogic.servlet.jsp.jspc20.runBodyInternal(jspc20.java:454)
at weblogic.servlet.jsp.jspc20.runJspc(jspc20.java:223)
at weblogic.servlet.jsp.JspcInvoker.compile(JspcInvoker.java:236)
at weblogic.application.compiler.AppcUtils.compileWAR(AppcUtils.java:376)
at weblogic.application.compiler.WARModule.compile(WARModule.java:245)
at weblogic.application.compiler.flow.SingleModuleCompileFlow.proecessModule(SingleModuleCompileFlow.java:18)
at weblogic.application.compiler.flow.SingleModuleFlow.compile(SingleModuleFlow.java:36)

Cause

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