Monday, November 24, 2014

Beans Validation java.lang.ClassNotFoundException: com.sun.el.ExpressionFactoryImpl

If you are using the Beans Validation framework (JSR 349), you may encounter this obscure exception when doing your validation.

java.lang.ExceptionInInitializerError
Caused by: javax.el.ELException: Provider com.sun.el.ExpressionFactoryImpl not found
Caused by: java.lang.ClassNotFoundException: com.sun.el.ExpressionFactoryImpl

This exception is caused by a missing key lookup in the ValidationMessages.properties file.  Make sure you have the the key in the properties file.

Enjoy!

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