This exception is thrown when it cannot find (one of) the necessary libraries 
for loading the Java Dialect.  In this case probably the eclipse jdt compiler.  
Make sure all the necessary dependencies are in your classpath.  If you are 
using a Drools project, the Drools classpath container should automatically do 
that for you.

However, note that the eclipse plugin currently only works with eclipse 3.2.x, 
it will be upgraded to 3.3 for the next major release.  If I remember 
correctly, I believe this exception is thrown if you try to use the plugin in 
eclipse 3.3.

Kris

  ----- Original Message ----- 
  From: Raffaele Viola 
  To: rules-users@lists.jboss.org 
  Sent: Thursday, August 16, 2007 12:52 PM
  Subject: [rules-users] RuntimeDroolsException


  Hi,

  I'm starting to use eclipse plug.in for JRules. I created the example JRules 
project in eclipse and I tried to start it as Java Application but I got this 
exception

  org.drools.RuntimeDroolsException: Unable to load dialect 
'org.drools.rule.builder.dialect.java.JavaDialect:java'
      at org.drools.compiler.PackageBuilderConfiguration.buildDialectRegistry 
(PackageBuilderConfiguration.java:156)
      at org.drools.compiler.PackageBuilder.<init>( PackageBuilder.java:131)
      at org.drools.compiler.PackageBuilder .<init>(PackageBuilder.java:84)
      at com.sample.DroolsTest.readRule(DroolsTest.java:50) 
      at com.sample.DroolsTest.main(DroolsTest.java:21)

  Can someone help me?
  Thanks
  Raffo



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