If you myEclipse developed, then, run-time errors may occur the following:
Exception in thread "main" java.lang.NoClassDefFoundError: com / sun / mail / util / LineInputStream
The reason is jar package version of the non-uniform, the solution is as follows:
Remove the Java EE 5 Libraries / javaee.jar / mail there is something inside the package.
Specific methods are as follows:
With the rar open X: / Program Files / MyEclipse 6.0/myeclipse/eclipse/plugins/com.genuitec.eclipse.j2eedt.core_6.0.1.zmyeclipse601200710/data/libraryset/EE_5/javaee.jar
, And then delete the mail, everything ok in.
Then need to standardize the mail, tomcat j2ee version, and a uniform requirement