[rules-users] Unable to load dialect 'org.drools.rule.builder.dialect.java.JavaDialectConfiguration:

[Pardeep.Ruhil at lntinfotech.com]

Hi,

I have set all the jars file in the classpath, but still m getting the 
same exception.
The exception is caused by : Null pointer exception. 
I am not able to understand why it is giving me this exception, while in 
the mailing list I didn't found anybody having this
exception, everyone else I found has 'Class Not found Exception'.

 
This is my code snippet :

 KnowledgeBuilderConfiguration config =  KnowledgeBuilderFactory.
newKnowledgeBuilderConfiguration(); 
 config.setProperty("drools.dialect.java.compiler", "ECLIPSE"); 
 KnowledgeBuilder kbuilder =KnowledgeBuilderFactory.newKnowledgeBuilder( 
config ); 

        //KnowledgeBuilder kbuilder = 
KnowledgeBuilderFactory.newKnowledgeBuilder();
        kbuilder.add(ResourceFactory.newClassPathResource(
"shopingdiscount.drl"), ResourceType.DRL);



This is my exception:
Drools config: unable to use the drools.compiler property. Using default. 
It was set to:0
org.drools.RuntimeDroolsException: Unable to load dialect 
'org.drools.rule.builder.dialect.java.JavaDialectConfiguration:jav
:org.drools.rule.builder.dialect.java.JavaDialectConfiguration'
        at 
org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:274)
        at 
org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigurationMap(PackageBuilderConfiguration.java:259

        at 
org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:176)
        at 
org.drools.compiler.PackageBuilderConfiguration.<init>(PackageBuilderConfiguration.java:153)
        at 
org.drools.builder.impl.KnowledgeBuilderProviderImpl.newKnowledgeBuilderConfiguration(KnowledgeBuilderProviderImp
.java:17)
        at 
org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilderConfiguration(KnowledgeBuilderFactory.java:57)
        a 
           .
         .
         .
           . 
 
Caused by: java.lang.NullPointerException
        at 
org.drools.rule.builder.dialect.java.JavaDialectConfiguration.setCompiler(JavaDialectConfiguration.java:92)
        at 
org.drools.rule.builder.dialect.java.JavaDialectConfiguration.init(JavaDialectConfiguration.java:55)
        at 
org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:270)
        ... 69 more





Am I missing anything that is to initialized , so that I can get through 
this Null Pointer Exception.

Please help me to through of this situation. I am stuck in this.

Thanks & Regards
Pardeep Ruhil


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