Run Java from Java on Linux

Asked Sep 22 '15 at 16:29

Active Sep 22 '15 at 16:29

Viewed 69 times

I am writing a program that updates it's self. I get all the updating working, I just need the program to restart it's self. Here is my current code:

String javaPath = System.getProperty("java.home");
Process process = new ProcessBuilder(javaPath, "-jar", ClientPortal.class.getProtectionDomain().getCodeSource().getLocation().getPath()).start();

I get an error though:

java.io.IOException: Cannot run program "/usr/lib/jvm/java-8-oracle/jre": error=13, Permission denied

I tried running this in my own console, and it is denied. The reason I am using the path of Java instead of just using the command java, is because, like me, people might have multiple Java instances installed and the wrong one is run. The command might simply be not available.

How can I run the same JVM in this fashion?

asked Sep 22 '15 at 16:29

Chris Smith

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Isn't that a directory? You can't execute a directory; try `javaPath + "/java"` – Colonel Thirty Two Sep 22 '15 at 16:31
@ColonelThirtyTwo Actually it's `javaPath + "/bin/java"`. This doesn't solve the problem of `.exe` on Windows though. – Chris Smith Sep 22 '15 at 16:35
Discussed here http://stackoverflow.com/questions/4159802/how-can-i-restart-a-java-application – John McClean Sep 22 '15 at 16:36

Run Java from Java on Linux

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