Show console when executing java via ProcessBuilder

Question

Hi all,
I have a Swing app with an updater that checks for updates off the server, and then fires up the main app using ProcessBuilder. On Windows it looks like this:
            ArrayList<String> list = new ArrayList<String>();
            list.add(javaPath); // Path to java.exe
            list.add("-cp");
            list.add(clientClasspath); // Classpath built up from a lib directory of jars
            list.add("-Xms128M");
            list.add("-Xmx256M");
            list.add("-XX:MaxPermSize=128m");
            list.add("-Djava.security.policy=.\\conf\\rmi.policy");
            list.add("-Dlog4j.configuration=file:.\\conf\\uniti_app_log4j.xml");
            list.add("uniti.client.UnitiClient_IMPL");
            processBuilder = new ProcessBuilder(list);
            processBuilder.directory(new File(clientAbsCodebasePath));
            process = processBuilder.start();The code works fine - problem is, Log4J isn't creating any log files, so I want to be able to see the Java console when the process builder runs.
Any ideas on how to display the console?
Thanks,
Paul C.

Answer 1

In most cases, you should not have to stop and restart OC4J_BI_FORMS to pick such changes. However, since you are having problems, I would ensure that all frmweb processes have been stopped, then stop and restart OC4J_BI_FORMS and retest. If that doesn't work, you should review how you imported the java into your app. Look closely at the Importer options you used and ensure that you have not change the file name at any point. Because you are working with Java, case sensitivity is critical.
Also, where are you seeing the error message? Client java console or in a server side log? If server side, exactly which log file is reporting the problem? I would suggest you post the first 4 ro 5 lines of the error and not just the NoClassDefFound part.