https://sourceforge.net/p/drjava/support-requests/301/Recent changes to 301: DrJava - JVM failed to start - run problemenWed, 18 Sep 2013 13:42:52 -0000https://sourceforge.net/p/drjava/support-requests/301/?limit=25#ae08<div class="markdown_content"><p>Somehow, I missed seeing your support request until now. Presumably you resolved the problem or gave up trying to use DrJava.</p> <p>It looks like the firewall on your machine was preventing DrJava from using Java RMI (which uses TCP/IP for interprocess communication) to create a slave JVM and communicate with it. DrJava relies on a slave JVM to run the DrJava interpreter so it can abort runaway execution in the interpreter by killing the slave JVM. Most contemporary operating systems (e.g. recent versions of Windows <span>[XP, Vista, 7, ...]</span>, Linux, and Mac OS X) allow interprocess communication between processes on the local machine by default.<br /> </p></div>Robert CartwrightWed, 18 Sep 2013 13:42:52 -0000https://sourceforge.net70c41b98c064992684599d84254bbc743792bfa4https://sourceforge.net/p/drjava/support-requests/301/<div class="markdown_content"><p>Hello, I'm just learning how to program in my computer science class in college and my first attempt at running the Hello World program is failing to run! Not encouraging. Please help!</p> <p>When ran, I get this error message four times:</p> <p>JVM failed to start. Make sure a firewall is not blocking<br /> inter-process communication. See the console tab for details.</p> <p>The console tab says: </p> <p>java.io.IOException: Unable to run process; class path may need to be adjusted<br /> at edu.rice.cs.plt.concurrent.ProcessTaskController$1.run(ProcessTaskController.java:157)<br /> at java.lang.Thread.run(Unknown Source)<br /> java.io.IOException: Unable to run process; class path may need to be adjusted<br /> at edu.rice.cs.plt.concurrent.ProcessTaskController$1.run(ProcessTaskController.java:157)<br /> at java.lang.Thread.run(Unknown Source)<br /> java.io.IOException: Unable to run process; class path may need to be adjusted<br /> at edu.rice.cs.plt.concurrent.ProcessTaskController$1.run(ProcessTaskController.java:157)<br /> at java.lang.Thread.run(Unknown Source)<br /> java.io.IOException: Unable to run process; class path may need to be adjusted<br /> at edu.rice.cs.plt.concurrent.ProcessTaskController$1.run(ProcessTaskController.java:157)<br /> at java.lang.Thread.run(Unknown Source)<br /> java.io.IOException: Unable to run process; class path may need to be adjusted<br /> at edu.rice.cs.plt.concurrent.ProcessTaskController$1.run(ProcessTaskController.java:157)<br /> at java.lang.Thread.run(Unknown Source)<br /> java.io.IOException: Unable to run process; class path may need to be adjusted<br /> at edu.rice.cs.plt.concurrent.ProcessTaskController$1.run(ProcessTaskController.java:157)<br /> at java.lang.Thread.run(Unknown Source)<br /> java.io.IOException: Unable to run process; class path may need to be adjusted<br /> at edu.rice.cs.plt.concurrent.ProcessTaskController$1.run(ProcessTaskController.java:157)<br /> at java.lang.Thread.run(Unknown Source)</p> <p>I do have an antivirus, Kaspersky. I tried adding DrJava as a trusted application but it didnt not help.</p></div>Todd SmithTue, 29 Jan 2013 07:28:11 -0000https://sourceforge.nete8815d345646120dd47be3d1ff3c7f018c777362