Solving VP-UML 6.4 start up problem under Snow Leopard

VP-UML 6.4 cannot be started on Mac OS X 10.6 Snow Leopard due to the compatibility issues with the JVM Mac bundled. To resolve the problem, VP-UML 6.4 users are needed to manually download Java 5, and tell the system to run Java applications with it. The steps are listed below:

1. In the terminal, grab Java 5 and unpack it. Command is as below:
   

   cd /tmp/ curl -o java.1.5.0-leopard.tar.gz http://www.cs.washington.edu/homes/isdal/snow_leopard_workaround/java.1.5.0-leopard.tar.gz tar -xvzf java.1.5.0-leopard.tar.gz

2. Execute the command below to move Java 5 to your System java folder:
   

   sudo mv 1.5.0 /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0-leopard

3. Execute the command below to make Java 5 as the dedicated java 5.
   

   cd /System/Library/Frameworks/JavaVM.framework/Versions/ sudo rm 1.5.0 sudo ln -s 1.5.0-leopard 1.5.0 sudo rm 1.5 sudo ln -s 1.5.0 1.5

4. Open Java Preferences with the commands below:
   

   open "/Applications/Utilities/Java Preferences.app"

5. Make "J2SE 5.0 32-bit" to be the default JVM for Java applications. Select J2SE 5.0 32-bit in the Java Applications list first.
   
   Then drag it to the top of the list.
   
6. Start VP-UML.
   
   VP-UML is started: