This functionality is supported only if you are using the Classic Agent.
If during recording of a window declaration, Silk Test Classic sees the main window as a JavaMainWin or JavaDialogBox, but does not see any child objects, make sure that your classpath references the correct Silk Test Classic .jar file.
If your application sets the Java library path using the JVM launcher directive Djava.library.path=<path>, you must copy qapjarex.dll from the System32 directory into the location pointed to by the JVM launcher directive. Silk Test Classic should then recognize child objects.