Actually the "standard" JRE (as far as most java apps are concerned) is the official one from java.sun.com (bundled as "sun-java" in ubuntu IIRC). I have encou

Actually the "standard" JRE (as far as most java apps are concerned) is the official one from java.sun.com (bundled as "sun-java" in ubuntu IIRC). I have encountered numerous instances of OpenJDK not being able to run java apps that run fine on sun-java & quite often when an app/applet I support doesn't work on a user's machine it's due to that user having OpenJDK installed. Replacing it normally solves the problem. I don't really know why linux distros so often insist on installing OpenJDK as the default when it has so many incompatibility issues.