Java Action is not implementing

Hello Everyone,                    Am facing this issue for past few days. I tried implementing java action in my project... Modeler version 7.17.2 and 7.18.0 also. After writing code in java, i troed running in mendix application, automatically java file got refreshed and am getting this error. Checked with all inputs, naming etc.. But still issue is existing. Can anyone please let me know what the actual issue?? Thank you , Deepha
1 answers

default this is the exception when creating a java action in your model. If this was not intended please check the java code or your commits in SVN or if applicable download the module again.

and if you are writing java code stay between the / BEGIN USER CODE and //END USER CODE and between // BEGIN EXTRA CODE and // END EXTRA CODE otherwise your changes will be lost at re-run again..