[jboss-jira] [JBoss JIRA] (DROOLS-362) Make Drools work with Janino 2.6.1 and javax.tools API

[John Engelke (JIRA)]

John Engelke created DROOLS-362:
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             Summary: Make Drools work with Janino 2.6.1 and javax.tools API
                 Key: DROOLS-362
                 URL: https://issues.jboss.org/browse/DROOLS-362
             Project: Drools
          Issue Type: Feature Request
      Security Level: Public (Everyone can see)
    Affects Versions: 6.0.0.Final, 5.5.0.Final
         Environment: JDK 1.7.0_45
            Reporter: John Engelke
            Assignee: Mark Proctor


Drools can be set to leverage the Janino "super-small, super-fast Java(TM) compiler." But it only works with version 2.5.16, not the latest version 2.6.1. 

Unfortunately, Janino does not support language features above 1.4/1.5 (partial 1.5). 

Version 2.6.1 includes an option to use the JDK build-in javax.tools.JavaCompiler: "JANINO can be configured to use javax.tools.JavaCompiler (available since JDK 1.6), i.e. JAVAC, which removes the Java 5-related limitations." [ See http://docs.codehaus.org/display/JANINO/Home#Home-what ] Unfortunately, this is only available when using the jars commons-compiler.jar and commons-compiler-jdk.jar, which are themselves only available in Janino 2.6.1. [ See http://docs.codehaus.org/display/JANINO/Advanced ] 

This is a nice little blocker for those of us who don't totally agree (or simply cannot agree) with the Eclipse license. Eclipse JDT is out. And, apparently, so is the double-diamond operator (until this is fixed)! 

Thanks.

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