I have a JVM crash during a JasperReport generation. After searching the Oracle Java bug database, it seems that I'm not the only one to have this problem: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7177085 It's exactly the same problem. I know it's not a bug in JasperReport lib itself, but was this bug observed by others ? and is there a known workaround to avoid it? (A full Tomcat crash has some serious consequences...) I cannot provide a sample code, just some info: - it occurs with JR 4.5.0 (in Tomcat 7) on a Linux with a 64-bit JVM, JDK 1.7.0u3/DK 1.7.0u5. - the report must be generated several times (probably to trigger the JIT compiler) - seems to not occur on Windows, only on Linux Thanks in advance! Post Edited by amasson at 07/30/2012 13:51 Post Edited by amasson at 07/30/2012 13:52