Hope this helps,
//Example for Windows 1. Open a command line console. Adjust the properties so the console buffer size is at least 500 lines. 2. CD to your installation bin directory ( ...\sqldeveloper\sqldeveloper\bin). 3. set ORACLE_HOME=%CD% (This is optional - if you want to ensure use of the jdbc driver that ships with SQL Developer) 4. Launch sqldeveloper.exe (not sqldeveloperW.exe) so any debug messages appear in the console 5. Run your test case and when it hangs, do a Ctrl-Break from the console to get a full thread dump (This is optional)
set oracle_home c:\app\ChildeDE\product\11.2.0Try using set ORACLE_HOME= and definitely point at the bin directory.
oracle.dms.instrument.DMSConsoleHere is a website you might find useful if you wish to check on which jar file(s) a given class may be found in: