JRAntCompileTask: target and source

[matb]

Good Afternoon,

I am compiling my project under Ant and Java 8 but with the javac source and target set to 7 (i.e. I want to be able to run under Java 7 and above).

It looks like the JRAntCompileTask though is just picking up that I am compiling under Java 8 and, as there isn't a source and target option (even though javadoc says "Works like the built-in javac Ant task."), it compiles the reports under Java 8.  So I am therefore forced to use a runtime of Java 8.  Running under Java 7 will throw up JRClassLoader and the calssic "Unsupported major.minor version 52.0".

The workaround is to just compile under Java 7 (or rejig JRAntCompileTask) as that is all I am targeting but would rather compile under Java 8 and set the target and source as 7.

In short, has anyone come across and/or got around this issue? 

Cheers

Mat