I have these java components installed: [root@xxx wormscan-1.5.7-release]# rpm -qa | grep -i java gcc-java-3.2-7 [root@xxx wormscan-1.5.7-release]# rpm -qa | grep -i j2 j2re-1.4.1_02-fcs j2sdk-1.4.1_02-fcs The java plugin works OK with Mozilla 1.3a. However, when I do a [root@xxx wormscan-1.5.7-release]# java -jar wormscan.jar Warning: -jar not understood. Ignoring. Exception in thread "main" java.lang.NoClassDefFoundError: wormscan.jar at 0x4027715f: java.lang.Throwable.Throwable(java.lang.String) (/usr/lib/libgcj.so.3) at 0x4026a08e: java.lang.Error.Error(java.lang.String) (/usr/lib/libgcj.so.3) at 0x4026bb1a: java.lang.LinkageError.LinkageError(java.lang.String) (/usr/lib/libgcj.so.3) at 0x4026cf76: java.lang.NoClassDefFoundError.NoClassDefFoundError(java.lang.String) (/usr/lib/libgcj.so.3) at 0x402bc0f9: gnu.gcj.runtime.FirstThread.run() (/usr/lib/libgcj.so.3) at 0x4025dfdc: _Jv_ThreadRun(java.lang.Thread) (/usr/lib/libgcj.so.3) at 0x4022a78c: _Jv_RunMain(java.lang.Class, byte const, int, byte const, boolean) (/usr/lib/libgcj.so.3) at 0x08048900: ?? (??:0) at 0x4068c907: __libc_start_main (/lib/libc.so.6) at 0x080486c1: ?? (??:0) However, man java tells me: −jar Executes a program encapsulated in a JAR archive. Evidently, an old version of java is installed?? [admin@xxx admin]$ java -version java version "1.3.1" jdkgcj 0.2.3 (http://www.arklinux.org/projects/jdkgcj) gcj (GCC) 3.2 20020903 (Red Hat Linux 8.0 3.2-7) Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. However, from above I have the 1.4.1 run time environment installed. Does something else need to be installed to get this to work? -- Psyche-list mailing list Psyche-list@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/psyche-list