An Error when running JasperReport on Tomcat

By: Alice Guo - alice_guo
An Error when running JasperReport on Tomcat
2003-06-17 06:46
Hello,

Could anyone help me figure out what caused this problem?
When the user run the jasper report through jsp page today, it caused this error and killed the server.


Unexpected Signal : 11 occurred at PC=0x40409E6D
Function=is_native_method__C7nmethod+0x9
Library=/usr/java/j2sdk1.4.1_01/jre/lib/i386/client/libjvm.so

Current Java thread:
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.<init>(Throwable.java:180)
at java.lang.Exception.<init>(Exception.java:29)
at java.lang.RuntimeException.<init>(RuntimeException.java:32)
at java.lang.NullPointerException.<init>(NullPointerException.java:36)
at dori.jasper.engine.fill.JRCalculator.evaluate(JRCalculator.java:678)


****************
Another exception has been detected while we were handling last error.
Dumping information about last error:
ERROR REPORT FILE = (N/A)
PC = 0x0x40409e6d
SIGNAL = 11
FUNCTION NAME = is_native_method__C7nmethod
OFFSET = 0x9
LIBRARY NAME = /usr/java/j2sdk1.4.1_01/jre/lib/i386/client/libjvm.so
Please check ERROR REPORT FILE for further information, if there is any.
Good bye.

After I restarted the web server, the report works fine again on the same scenario. Does any one know what causes this problem? How can I fix it?

Thanks a lot for the help.

Alice