java - ToolProvider.getSystemJavaCompiler() returns null - usable with only JRE installed?

Question

I am trying to use the JavaCompiler class:

• http://docs.oracle.com/javase/6/docs/api/javax/tools/JavaCompiler.html

When I call ToolProvider.getSystemJavaCompiler() it returns null.

I think this is because I'm using a JRE instead of a JDK.

The problem is I want it to run on all platforms regardless of weather the user is using a JRE or a JDK.

If anyone knows how to fix this, or an alternative method to use please comment.

Any help would be appreciated.

Answer 1

ToolProvider.getSystemJavaCompiler() is not available.

Is tools.jar missing from the classpath?

Set class path to the tools.jar file which can found in jdkjre directory.

System.setProperty("java.home", "C:\Program Files\Java\jdk1.7.0_02");