[p2-dev] Java Version Dependency

[Thomas Fletcher <thomas@xxxxxxxxxxxxxxxxx>]

All,

We are moving our product build from the Eclipse 3.x series to the 4.x 
series and part of this
has involved updating our JVM versions as we migrate to a Luna based 
product release.

We were building our product with a Java 8 installation and end up with 
an error trying to install
some 3rd part external plugins that seemed to imply that we should be 
building with Java 7 instead.

However, if we try and do that (build with a Java 7 version instead of 
Java 8) we end up with.

BUILD FAILED
 c:\sbinstaller\productBuild\productBuild_4.0.xml:39: The following 
error occurred while executing this line:
 c:\sbinstaller\productBuild\productBuild_4.0.xml:69: 
java.lang.UnsupportedClassVersionError:
   org/eclipse/osgi/internal/resolver/NativeCodeSpecificationImpl : 
Unsupported major.minor version 52.0

This implies to me that there is a dependency on Java 8 for PDE/P2 based 
builds.  Is this correct?

Thanks,
  Thomas