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

Tue Dec 3 01:12:05 EST 2013

    [ https://issues.jboss.org/browse/DROOLS-362?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12928071#comment-12928071 ] 

John Engelke commented on DROOLS-362:
-------------------------------------

Apparently there are others suffering from this affliction, also: https://groups.google.com/forum/#!topic/cascading-user/q0zchNOwaoU 

"The version of Janino that drools seems to work with is 2.5.16 where the CompileException Class is bundled with the jar. The version of the Janino that cascading 2.6.1 refactored those classes into its own jar under commons-compiler and I am Using drools 5.5.0-Final."

> 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: 5.5.0.Final, 6.0.0.Final
>         Environment: JDK 1.7.0_45
>            Reporter: John Engelke
>            Assignee: Mark Proctor
>              Labels: Drools, Janino
>
> 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 built-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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