RAD, WAS 6 Test Env and J2EE security: getting rid of “No received or invocation credential exist on the thread”

Recently I started a new J2EE project that required j2ee security. Unfortunately Rational app. Developer 6 seemed to have some problems running a WAS Test Environment in this way, at least with the default setup. I encountered 2 problems: RAD wasn’t able to connect to the server at all, throwing some security exceptions. The solutionContinue reading “RAD, WAS 6 Test Env and J2EE security: getting rid of “No received or invocation credential exist on the thread””

RAD: Profiling a portlet

Recently I needed to profile a portlet to find its time performance bottlenecks. Since I developed it in RAD using its WebSphere 5.1 Test Environment, I thought I’d run the server in the Profiling mode and would get the results. The profiler worked very hard, but at the end no results were displayed.  I triedContinue reading “RAD: Profiling a portlet”

Kill a zombie database (not in the directory but can’t create it)

I tried to create a database but couldn’t because of “SQL1005N  The database alias “W3IBMDB” already exists in either the local database directory or system database directory.“. I knew I had once such a database, but I thought it existed no more. And indeed “list database directory” didn’t list it. So it was there andContinue reading “Kill a zombie database (not in the directory but can’t create it)”