Knowledge Seeking

Drools and Gwt – Small Post, Big Issue May 11, 2011

Filed under: Drools,GWT — nicozan @ 3:47 pm
Tags: , , ,

Short Approach…

It’s an excellent idea to combine 2 two technologies such as Drools and GWT to build Intelligent Web Applications. But there is a little bit of a problem at the moment to integrate them. Because Drools and GWT include the org.eclipse.jdt classes but with different JDT version. And when you run your application (mvn gwt:run) you will have an error like this:

Unable to parse module:
java.lang.NoSuchMethodError: org.eclipse.jdt.internal.compiler.CompilationResult.getErrors()
at org.eclipse.jdt.internal.compiler.Compiler.compile


So to solve this problem you need to add an exclusion to your dependecy (that has the Drools-Core dependency) added in your Maven Gwt Application pom.xml. The exclusion in your pom should look like this:


Short but helpful 😉


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