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Why do I get the error "java.lang.NoClassDefFoundError: com/sun/tools/javac/Main" ?

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239  Support KB Author December 4, 2014  Compiler General

This error means that the Java Compiler cannot be found in the CLASSPATH.

Ensure that the library $JDK_HOME/lib/tools.jar appears in the CLASSPATH.
Why do I get the error "java.lang.NoClassDefFoundError: com/sun/tools/javac/Main" ?
Estimated Reading Time: < 1 Minute  Support KB Author December 4, 2014