Try running the compile as MANAGER.SYS (if you have access) and see if that works. If it does, it indicates a permissions problem on some of the Java files. If that fails, there is either a CLASSPATH problem (although I don't see any problem with yours) or something has clobbered the classes.zip file. Also, you'll need to include the '.java' extension on the name of the source file to compile, but I don't believe that omission has any bearing on this particular problem. Later versions of Java (JDK 1.2.2 is the latest) do a much better job of getting permissions set up right on the install, if you want to pull the latest version it is available at http://jazz.external.hp.com/src/java (It isn't clear which version you're currently running, but it is one of either 1.1.5 or 1.1.7 based on the variable settings shown in your posting). Mike [log in to unmask] wrote: : Anyone with JDK setup on MPE/ix6.0 experience. : ----> : /javac MyFirstProgram : No Floating-Point coprocessor, disabling JIT : Unable to initialize threads: cannot find class java/lang/Thread : <---- : The first warning is documented on the FAQ's. : The second line appears to indicate a path problem. Any suggestions? : Some pertinent system variables are pasted below. One of our analysts : ran the JDK install a couple of weeks ago, and compiled a demo with no : hitches. Now we can't even do that again, even after a reinstall. : TIA, : Richard Sheehan : HP3000 Release: C.60.00 User Version: C.60.02 : MPE/iX Shell and Utilities (A.50.02) : HPVERSION = C.60.02 : HPPATH = : SYCMD.SYS,/SYS/SYCMD,ACCMD.ADMIN,ACCMD,PUB.SYS,PUB,/usr/local/java/late : st/bin/PA-RISC/green_threads : JBIN = /usr/local/java/latest/bin/PA-RISC/green_threads : JLIB = /usr/local/java/latest/lib/PA-RISC/green_threads : CLASSPATH = /usr/local/java/latest/lib/classes.zip:. : LD_LIBRARY_PATH = /usr/local/java/latest/lib/PA-RISC/green_threads : THREADS_FLAG = green : Sent via Deja.com http://www.deja.com/ : Before you buy. -- ----------------------------------------------------------------- Mike Yawn Hewlett-Packard email [log in to unmask] Commercial Systems Division Voice (408) 447-4367 19447 Pruneridge Ave M/S 47UA Fax (408) 447-4441 Cupertino, CA 95014 -----------------------------------------------------------------