当我运行Junit测试我的插件时，如何在Java Eclipse中修复此错误

Question

这是错误消息和堆栈跟踪：

java.lang.NoClassDefFoundError: org/eclipse/core/runtime/CoreException
    at com.semarchy.engine.extensionpoint.RowTransformerExecutor.<init>(RowTransformerExecutor.java:61)
    at TestToken.CheckToken1(TestToken.java:65)
Caused by: java.lang.ClassNotFoundException: org.eclipse.core.runtime.CoreException
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)