Java Compiler is not always detected

[sergutsan]

See commit c233f3e.

Sometimes the output of ToolProvider.getSystemJavaCompiler() is null but the reason is unclear to me.

My system:

$ uname -a
Linux BBK-705 3.13.0-35-generic #62-Ubuntu SMP Fri Aug 15 01:58:01 UTC 2014 i686 i686 i686 GNU/Linux
$ javac -version
javac 1.7.0_65
$ echo $CLASSPATH
/opt/lib/rsyntaxtextarea.jar

[sergutsan]

After some googling, I added tools.jar to the CLASSPATH but it did not seem to make a difference.

[sergutsan]

Apparently, 18b8521 does not fix the issue. It worked fine on linux but now it does not work on windows.