After updating Java, you get the following error message when trying to run a Job in Talend Studio 6.x:
Cannot run program "<SOME_PATH>/java.exe": CreateProcess error=2 The system cannot find the file specified.
In the error message, <SOME_PATH> is the full path where the previous Java version was installed. During the Java update, the version was replaced with a new one. Therefore, this path is no longer valid and the Java executable is not found.
Update Studio preferences to set the new, valid Java executor location.