exe ws seems has something wrong when building, file size of fxfeaturesTest/classes/signedhello.jar is 0

exe ws seems has something wrong when building, file size of http://sqeweb.us.oracle.com/deployment1/deployment_6_UR_int_exec_ws/6/deployment/src/javafx/fxfeaturesTest/fxfeaturesTest/classes/signedhello.jar is 0
I re-built the ws last week, the jar file's size is ok. But seems it is built again and the issue came back