Hi,
since Tomcat 7.0.30 (currently using version 7.0.33) I'm faced with the
following NullPointerException:
Dec 7, 2012 2:10:28 PM
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor
processChildren
SEVERE: Exception invoking periodic operation:
java.lang.NullPointerException
at
org.apache.jasper.util.FastRemovalDequeue$Entry.access$700(FastRemovalDe
queue.java:254)
at
org.apache.jasper.util.FastRemovalDequeue.remove(FastRemovalDequeue.java
:177)
at
org.apache.jasper.compiler.JspRuntimeContext.checkUnload(JspRuntimeConte
xt.java:610)
at
org.apache.jasper.servlet.JspServlet.periodicEvent(JspServlet.java:360)
at
org.apache.catalina.core.StandardWrapper.backgroundProcess(StandardWrapp
er.java:709)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.proc
essChildren(ContainerBase.java:1530)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.proc
essChildren(ContainerBase.java:1540)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.proc
essChildren(ContainerBase.java:1540)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.proc
essChildren(ContainerBase.java:1540)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(
ContainerBase.java:1519)
at java.lang.Thread.run(Thread.java:662)
I was able to debug and trace the exception and found that the Excpetion
is caused by a '.tag', I'm including in my JSP, which has no
UnloadHandle assigned when processed in
org.apache.jasper.compiler.JspRuntimeContext.checkUnload() line 610:
jspQueue.remove(jsw.getUnloadHandle());
Because jsw.getUnloadHandle() returns null, jspQueue.remove() fails and
is throwing the NullPointerException everytime, aborting the "unload".
Does anyone have an idea how to solve this problem or is there already a
fix?
Pls help me out.
Thanks.
Laszlo
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