Re: [rules-users] Re: [drools-user] The Eclipse JDT Core jar is not inthe classpath error
Eclipse 3.4.x is not supported for Drools 4.0.x. So you should either
- use Eclipse 3.3.x or 3.2.x with the corresponding Drools 4.0.7 plugin
- use the Drools 5.x plugin with Eclipse 3.4.x
Even though large parts of the Drools 4.0.7 plugin might still work under
Eclipse 3.4.x, some things like the auto-detection of the jdt core jar or
debugging won't. A workaround for the jdt jar is of course manually adding
it yourself.
Note that you can now use the Drools 5.x release with the Drools 4.0.7 jars,
as the Drools classpath container in Drools 5.x now allows you define your
own runtimes, so you can create a Drools 4.0.7 runtime as well.
Kris
----- Original Message -----
From: "Xiandong Su" <xiandongsu(a)yahoo.com>
To: <rules-users(a)lists.jboss.org>
Sent: Tuesday, December 02, 2008 5:28 AM
Subject: [rules-users] Re: [drools-user] The Eclipse JDT Core jar is not
inthe classpath error
As a workaround, I have to manually add the drools jar files to the
classpath instead of using the classpath generated by the wizard for the
drools project. Does this mean that the classpath generated by the new
project template is not sufficient?
thanks
Xiandong
----- Original Message ----
From: Xiandong Su <xiandongsu(a)yahoo.com>
To: Drools Users <user(a)drools.codehaus.org>
Sent: Monday, December 1, 2008 11:18:18 PM
Subject: [drools-user] The Eclipse JDT Core jar is not in the classpath
error
I am using drools 4.0.7 plug in with eclipse 3.4.1. I created a drools
project with the example generated by the wizard. However I am getting
this exception when trying to run the example. I see there are discussion
around this topic but I still do not have clear understand what the final
solution should be. Does anyone have final solution?
thanks
Xiandong
org.drools.RuntimeDroolsException: Unable to load dialect
'org.drools.rule.builder.dialect.java.JavaDialectConfiguration:java'
at
org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:160)
at
org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigurationMap(PackageBuilderConfiguration.java:146)
at
org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:121)
at
org.drools.compiler.PackageBuilderConfiguration.<init>(PackageBuilderConfiguration.java:98)
at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:124)
at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:86)
at com.sample.DroolsTest.readRule(DroolsTest.java:50)
at com.sample.DroolsTest.main(DroolsTest.java:21)
Caused by: java.lang.RuntimeException: The Eclipse JDT Core jar is not in
the classpath
at
org.drools.rule.builder.dialect.java.JavaDialectConfiguration.setCompiler(JavaDialectConfiguration.java:91)
at
org.drools.rule.builder.dialect.java.JavaDialectConfiguration.init(JavaDialectConfiguration.java:52)
at
org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:156)
... 7 more
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