setting up Drools in Galileo

[Shashank Rudra]

Hi guys

I am working on setting up Drools5 in Galileo from last 2 weeks, gone through many links, and in fact am so confused at this moment.

Here are the recent ones that I followed
https://jira.jboss.org/jira/browse/JBRULES-1260
(I started with Ganymede in the hope that may be Eclipse3.4 will do the magic) But naah again I heard bodies saying try with the latest Eclipse, which comes with all the releases required.

Then I bumped in the posts on Ranch itself
http://www.javaranch.com
https://coderanch.com/t/421567/JBoss/unable-start-JBoss-server-through

And many more on the blogs, IRC sites, but I have not been able to make a concept on how to put all together.

Here I am attempting at only running the basic application, default drools project that Galileo gets you once you do a new Drool Project.

The error I first was getting related to some JDT, then I put this jar also in the classpath
org.eclipse.jdt.core_3.4.4.v_894_R34x.jar

The jars that I have in the drools runtime are

drools-all-jdk5-2.1.jar
drools-ant-5.0.1.jar
drools-api-5.0.1.jar
drools-bam-5.0.1.jar
drools-clips-5.0.1.jar
drools-compiler-5.0.1.jar
drools-core-5.0.1.jar
drools-decisiontables-5.0.1.jar
drools-jsr94-5.0.1.jar
drools-mc-5.0.1.jar
drools-messenger-jms-5.0.1.jar
drools-persistence-jpa-5.0.1.jar
drools-process-task-5.0.1.jar
drools-templates-5.0.1.jar
drools-transformer-jaxb-5.0.1.jar
drools-transformer-jxls-5.0.1.jar
drools-verifier-5.0.1.jar
drools-workitems-5.0.1.jar
org.eclipse.jdt.core_3.4.4.v_894_R34x.jar

Now after all this now I am getting this error

java.lang.IncompatibleClassChangeError: Implementing class
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$000(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClassInternal(Unknown Source)
	at org.drools.decisiontable.DecisionTableProviderImpl.compileStream(DecisionTableProviderImpl.java:25)
	at org.drools.decisiontable.DecisionTableProviderImpl.loadFromInputStream(DecisionTableProviderImpl.java:19)
	at org.drools.compiler.DecisionTableFactory.loadFromInputStream(DecisionTableFactory.java:16)
	at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:508)
	at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:31)
	at com.sample.DecisionTableTest.readKnowledgeBase(DecisionTableTest.java:44)
	at com.sample.DecisionTableTest.main(DecisionTableTest.java:25)

Please help me out here. I have java1.6 on my machine. Same thing happening on other machine with JDK1.5 on that. Almost same problem I am getting while working on Ganymede as well. This plugins and features I have downloaded from
https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/
Here is the screenshot of the project that is set up in the IDE.