[jboss-jira] [JBoss JIRA] Created: (JBRULES-2533) Update Eclipse Compiler dependency

[Fabian Lange (JIRA)]

Update Eclipse Compiler dependency
----------------------------------

                 Key: JBRULES-2533
                 URL: https://jira.jboss.org/browse/JBRULES-2533
             Project: Drools
          Issue Type: Task
      Security Level: Public (Everyone can see)
          Components: drools-compiler
    Affects Versions: 5.1.0.M2
            Reporter: Fabian Lange
            Assignee: Mark Proctor


drools-compiler pom includes a reference to eclipse JDT. in 5.0.1 this was a 4 MB core_whatever.jar
Because I wanted to improve compiler performance I tried out a never eclipse compiler package. Finding it was not very easy, because eclipse seems to change group and artifact ids every day.
I found a module which only contains the compiler part from eclipse 3.5.1, which works in all my tests ok.
Another nice benefit was that the size of my war shrunk by 3 Megabytes, as this module is only 1.7 megs.
It even helped for performance of compilation process by the way. Not that this is a main bottleneck, but we have files that take seconds to compile.
My tests on my windows box with java 6 gave 5-10% improvement using the 3.5.1 jdt compiler.

Here the part for the pom:
{code}

		<dependency>
		    <groupId>org.eclipse.jdt.core.compiler</groupId>
		    <artifactId>ecj</artifactId>
		    <version>3.5.1</version>
		</dependency>

{code}

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira