Classpath breaks on Mac OS X

[jwulf]

The symptom is an error like this when running ts-java.sh on Mac:

Error: ENOENT: no such file or directory, open '/Library/Java/JavaVirtualMachines/jdk1.8.0_73.jdk/Contents/Home
/jre/lib/rt.jar'

This is an issue with processing the output of find-java-home on Mac OS X.

find-java-home returns a value for JAVA_HOME with a line break at the end. When you do the path.join on it, returns an invalid path, like this:

/Library/Java/JavaVirtualMachines/jdk1.8.0_73.jdk/Contents/Home\n/jre/lib/rt.jar

I fixed it by putting this in initJava in ts-java-main.js:

javaHome = javaHome.replace(/^\s+|\s+$/g, '');
 var rtJarPath = path.join(javaHome, 'jre', 'lib', 'rt.jar');

[jimlloyd]

That's strange, since all development of ts-java has been done on Mac OS X. But I've moved onto other projects and haven't done any real development on ts-java for seven months now. I wondered if any recent change in find-java-home might be the cause, but I see that @jsdevel hasn't made any changes to that project recently.

How are you defining JAVA_HOME? I've done all development using /usr/libexec/java_home to define it like this (in my .bash_profile):

export JAVA_HOME=$(/usr/libexec/java_home)

[jwulf]

I don't define it at all. IIRC find-java-home finds it by using which to get the java binary, then walking the directory structure.

[jimlloyd]

Ok, I bet that means you're relying on a different code path in find-java-home, and that code path has a bug. Do you want to log an issue with that project? And as a different workaround for ts-java, I suggest you define JAVA_HOME as I showed above.

[jsdevel]

if in doubt, you can always modify find-java-home with console.logs to see what path it's using.