Drools报错:The Eclipse JDT Core jar is not in the classpath
2010

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:94)
at org.drools.rule.builder.dialect.java.JavaDialectConfiguration.init(JavaDialectConfiguration.java:55)
at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:251)
... 9 more

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解决办法：

把drools自带的core包加进去就ok了

对于5.0版本：

Drools 5.0.0.M4\drools-5.0.0.M4-bin\lib\core-3.4.2.v_883_R34x.jar