Make sure you don't have old versions of the DLL and JAR files lying around. Then, put your DLL file in the System32 directory, put your JAR file in the same directory where your main program is, adjust CLASSPATH accordingly and try running your program. If it works, you can start slowly unwinding this setup until you have everywhere placed wherever you want to.
HTH and best regards. -- Gonzalo Diethelm DCV Chile From: [email protected] [mailto:[email protected]] On Behalf Of Glenn LeMoine Sent: Wednesday, January 18, 2012 2:52 PM To: [email protected] Subject: [zeromq-dev] Fwd: FW: Java Binding Guys, I've successfully downloaded and compiled libzmq.dll as well as jzmq.dll in VS2008 on Windows XP 32bit. I've xcopied the libraries as well as the jars to C:\zmq\bin and C:\zmq\java respectively. I've added java.library.path=.;C:\zmq\java to my system variables. I've added ;C:\zmq\java to my classpath and I've added C:\zmq\bin to my Path. After several iterations on the command line, it seems that the zmq.jar cannot locate jzmq.dll as i get the following exception: C:\Devel\zmq\zeromq-jzmq-4bdf011\perf>java local_lat tcp://127.0.0.1:5555<http://127.0.0.1:5555> 1 100 Exception in thread "main" java.lang.NoClassDefFoundError: org/zeromq/ZMQ at local_lat.main(local_lat.java:36) Caused by: java.lang.ClassNotFoundException: org.zeromq.ZMQ at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) I then tried copying the .dlls (libzmq,jzmq) into the C:\Windows\System32 directory as well as to the C:\Devel\zmq\zeromq-jzmq-4bdf011\perf directory to no avail. On the latest attempt I opened up the project in eclipse and added the .dll as a native library. On this iteration, the zmq.jar successfully found the jzmq.dll as evidenced by successfully creating a context: ZMQ.Context ctx = ZMQ.context (1); ZMQ.Socket s = ctx.socket (ZMQ.REP); // Add your socket options here. // For example ZMQ_RATE, ZMQ_RECOVERY_IVL and ZMQ_MCAST_LOOP for PGM. s.bind (bindTo); Unfortunately, the thread dies when it reaches for (int i = 0; i != roundtripCount; i++) { byte [] data = s.recv (0); on ZMQ.context.recieve with no exception. I'd appreciate help with the following two problems 1) Correctly declaring system and environment variables to run jzmq from the command line. 2) Diagnosing why the thread is dying when it reaches s.recv(0) (I haven't looked as of yet, but my hunch is that s.recv calls into libzmq.dll and i currently have it configured incorrectly. Many Thanks G
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