2. I installed JRE 1.7.X but still SystemManager does not start?
The JRE version 1.7 that you download through the software update mechanism only updates java for the web browsers. If you need JAVA 1.7 for your programs, you need to update the native java installed in /usr/bin/java.
To check what version you are running natively open a Terminal and then type in
>> java --version
openjdk version "1.7.0-ea"
OpenJDK Runtime Environment (build 1.7.0-ea-b215)
OpenJDK 64-Bit Server VM (build 21.0-b17, mixed mode)
My version here is OpenJDK. This is the same as Oracle JDK but installed through the MacPorts package manager. Oracle JRE 1.7.x will also work.
I had the same issue at first then noticed that the java.com download is for JRE 1.7 not JDK 1.7 by default to get the runtime environment instead of developer kit... I had to go to downloads and install JDK 1.7 then all worked great.
What we are doing here is to start the Jetty process manually instead through a NSTask thread. The error you posted indicates that the NSTask process, which we are executing above in a CLI, is failing.
If you see any java exceptions or errors you can post this back on this forum and we can continue troubleshooting.