looks like a memory leak
http://www.performanceengineer.com/blog/java-memory-leaks/
http://docs.sun.com/app/docs/doc/819-4673/gezax?l=fr&a=view
Error Log for Web Server or Application Server
Exception in thread "service-j2ee"
java.lang.OutOfMemoryError:
requested 53515 bytes for jbyte in
/BUILD_AREA/jdk1.5.0_10/hotspot/src/share/vm/prims/jni.cpp.
Out of swap space?
Description:
The native heap allocation failed and the native heap may be
close to exhaustion.
Cause:
A native code leak, for example the C or C++ code,
continuously requires memory without releasing it to the operating
system. There could be indirect causes like an insufficient amount
of swap space or another process that is consuming all memory or
leaking it.
Solution:
For further diagnosis of a native code memory leak, see the
Java 5.0 Troubleshooting and Disgnostic Guide at
http://java.sun.com/j2se/1.5/pdf/jdk50_ts_guide.pdf.
In the section “Diagnosing Leaks in Native Code.” See
the information about tools for different operating systems. The
tools include mdb and dbx (runtime trace) for Solaris 9 U3 or
later, mtrace , libnjamd for Linux, and windb or userdump for
Windows."
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