Error starting Java virtual machine.

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Error starting Java virtual machine.

I get 'Error starting Java virtual machine.' What Java version and what JVM do I need on iMac to run LightZone?


I messed around with updating

I messed around with updating Java on my iMac (OS X 10.9.3), updated it to the latest  Java (jre-7u60-macosx-x64.dmg), and now LightZone beta9 starts all right.

Still it's interesting to know what are the Java requirements for LZ on Mac.

Same problem

Having the same problem as Khr128 on 10.6.8 with Java SE6  x64 v 1.6.0_65-b14-462 with the LightZone-4.1.0beta9.

Don´t know what to do.

Java problem solved

Problem solved.


Java deinstalled with terminal:


sudo rm -rf /System/Library/Java/JavaVirtualMachines/*.jdk
sudo rm -rf /Library/Java/JavaVirtualMachines/*.jdk
sudo rm -rf /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin
sudo rm -rf /Library/PreferencePanes/JavaControlPanel.prefpane


Downloading Java for 10.6.8 at Apple:


Installing Java, all browsers must be off!


And now the beta works, nice work, even with some german elements!


Thanks for your enthusiasm!



Java is seen by some to be

Java is seen by some to be less than satisfactory as it has some well documented security flaws.

To this end Apple frequently disable Java in their updates and you need to go and get the latest approved version for install from their website.


Most of the time you can fix

Most of the time you can fix this problem by uninstalling the Java runtime and then reinstalling it all over again.  

To do this, go to the control panel and then Programs and Features. If you’re running Windows 8.1 Update 1, just right-click on the Start button and click on Programs and Features. Locate the Java runtime, uninstall it and reboot your PC.