Date: Mon, 4 Apr 2016 12:04:09 +0100 (BST) From: Anton Shterenlikht <mexas@bris.ac.uk> To: freebsd-questions@freebsd.org, java@freebsd.org Subject: when do I need to set JAVA_HOME? Message-ID: <201604041104.u34B49Tw051741@mech-as222.men.bris.ac.uk>
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I'm having troubles running an openGL
3D visualisation over ssh -Y:
javax.media.opengl.GLException: Error making context current
at com.sun.opengl.impl.x11.X11GLContext.makeCurrentImpl(X11GLContext.java:141)
at com.sun.opengl.impl.x11.X11OnscreenGLContext.makeCurrentImpl(X11OnscreenGLContext.java:69)
at com.sun.opengl.impl.GLContextImpl.makeCurrent(GLContextImpl.java:127)
The X server is on FreeBSD 11-current.
It was suggested to me
to double check Java setup.
I have installed
$ pkg info -xo jdk
linux-oracle-jdk18-8.77 java/linux-oracle-jdk18
openjdk8-8.77.3 java/openjdk8
Both ports rely on java/javavmwrapper, which installs
symlinks under /usr/local/bin, all pointing to
/usr/local/bin/javavm.
So is it not recommended to invoke binaries from either
of the above ports directly?
Will these be invoked
somehow via /usr/local/bin/javavm?
The javavm(1) man page lists multiple env var, e.g.
JAVA_HOME, JAVA_OS, none of which I have set.
So I'm unsure:
1. If I have only a single JDK port installed,
do I need to set any env vars or anything else up
to be able to use Java?
2. If I have multiple JDK installed, as above,
how do I choose which one is used?
Thanks
Anton
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