The Eclipse JDT Core jar is not in the classpath

http://msq.iteye.com/blog/683074

在操作Drools的测试例子时，Eclipse后台报以下错误：
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.DecisionTableTest.readDecisionTable(DecisionTableTest.java:58)
at com.sample.DecisionTableTest.main(DecisionTableTest.java:35)
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

主要是缺少一个jar包：org.eclipse.jdt.core_3.3.1.v_780_R33x.jar而引起的。

Drools报错:java.lang.NoClassDefFoundError: org/antlr/runtime/CharStream

Java

java.lang.NoClassDefFoundError: org/antlr/runtime/CharStream
at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:292)
at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:457)
at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:30)
at com.sample.DroolsTest.readKnowledgeBase(DroolsTest.java:40)
at com.sample.DroolsTest.main(DroolsTest.java:23)

---------------------------------------------------------------------------------------------------------------------------

解决办法：

把drools自带的antlr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\antlr-runtime-3.1.1.jar

＝＝＝＝＝＝＝＝＝

class not found:org/mvel2/integration/VariableResolverFactory

加入包mvel2.java

The Eclipse JDT Core jar is not in the classpath相关推荐

eclipse jdt.core(一)——简介
jdt是Java Development Tools的缩写,是eclipse支持java开发的核心插件.jdt core是jdt插件中的一个jar,本文用的jar是org.eclipse.jdt.co ...
Eclipse---Refreshing /.org.eclipse.jdt.core.external.folders/.link0
有俩月了 eclipse一直在启动的时候提示Refreshing /.org.eclipse.jdt.core.external.folders/.link0,然后大概等5分钟才敢动它,否则就会假死 ...
Eclipse---Refreshing /.org.eclipse.jdt.core.exter
2019独角兽企业重金招聘Python工程师标准>>> 有俩月了 eclipse一直在启动的时候提示Refreshing /.org.eclipse.jdt.core.externa ...
org.eclipse.jdt.internal.compiler.CompilationResult.getProblems()[Lorg/eclipse/jdt/core/comp
部署完maven项目之后项目启动正常不报错 spring 和 struts quartz 都正常但是跳转到jsp页面时报错 org.eclipse.jdt.internal.compiler ...
org.eclipse.jdt.internal.compiler.CompilationResult.getProblems()[Lorg/eclipse/jdt/core/compiler/IPr
http://bbs.csdn.net/topics/260053873/ 我按上面一个兄弟说的办法进行逐个测试, 发现把我原有工程的一个jar:jasper-compiler.jar 移除,我看了下 ...
org.eclipse.jdt版本更新导致包引入问题
目录现象问题分析依赖分析包分析问题总结解决方式 1.引入国外制作的BOM定义,锁死依赖 2.仓库新增 3.排除错误依赖现象在pom引入org.eclipse.jdt.core的情况下 ...
org.eclipse.jdt.internal.compiler包下的类找不到
到maven库上下载jar包:org.eclipse.jdt.core-3.13.jar <!-- https://mvnrepository.com/artifact/org.eclipse. ...
利用Eclipse JDT抽取Java AST
最近特征抽取的目标转移到了Java程序上,Joern已然不够用了,于是盯上了Eclipse的插件JDT(Java Development Tools),因为以前从来没用过Eclipse也没写过java ...
eclipse JDT相关知识
Java项目模型 Eclipse的项目有很多种,包括Java项目.C++项目.C#项目等,每种项目都有自己的特点.我们最常接触到的项目就是Java项目,因此我们重点来讲解一下Java项目模型. Jav ...

The Eclipse JDT Core jar is not in the classpath

Drools报错:java.lang.NoClassDefFoundError: org/antlr/runtime/CharStream

The Eclipse JDT Core jar is not in the classpath相关推荐

最新文章

热门文章