Class file 'identifier' should not contain class 'identifier'
This compiler did not detect the class specified in the error in the specified class file. This error usually occurs when a class is compiled into a class file that later is renamed. Because the class file has a different name than the class contained inside of it, attempting to use the name of the class file as a class will fail. To avoid this situation you will need to change the class definition to have the correct name or rename the file back to the original class name.