[rules-users] Software Licensing Question Related to Bundled Eclipse Jarfile, "core-3.2.3.v_686_R32x.jar"?

Hello! My apologies in advance if this isn't the correct list for this question! I'm evaluating the possibility integrating Drools into an project that I'm working on. I see from the packaging that Drools itself uses the Apache License v2.0 which is fine for my purposes. The question I have though is with Drools 4.0.4/4.0.5 Java-like rules language plugin. To use the Java lang for the .drl file I'm required to include an eclipse jar (core-3.2.3.v_686_R32x.jar) in my distribution. Which license applies to that eclipse .jar? Is it the Eclipse license or the Drools adoption of Apache 2.0? Thanks for your time! -Kerry