To adjust the tomcat heap size, edit $CATALINAHOME/bin/catalina.sh and add this line near the top:

export CATALINA_OPTS=”-Xms512m -Xmx512m”

then restart tomcat.  You can verify that it worked by running:

ps -ef | grep java

and looking for the -Xms line in the output

To write to a file:

BufferedWriter outputStream = 
  new BufferedWriter(new FileWriter("filename.txt"));
outputStream.write("hello");

To read a file from disk:

BufferedReader in = new BufferedReader(new FileReader("foo.in"));
while ((strLine = in.readLine()) != null)   {
      // Print the content on the console
      System.out.println (strLine);
    }

Soyatec eUML2

Not sure yet if this does anything useful, but it can make basic class diagrams showing dependencies.

Install following these directions

1. Go to help->software updates
2. Install Collaboration -> Subversive SVN Team Provider
3. Then go to Polarion website to find URL for SVN Connector Update site
4. Add this as a new update site and add a connector (I used SVNKit 1.3)

To enable assertions, you need to modify the run configuration:

To enable (make active) assert statements, you must set a flag to the compiler. Go to Run -> Run… -> Arguments, and in the box labeled VM arguments:, enter either -enableassertions or just -ea. Accept the changes and close the dialog.