IdealGraphVisualizer: work around a Swing/NetBeans tree UI problem that occurs when mouse events are handled while the tree model is changing, e.g. when using IGV while it still receives graphs from a compiler. BasicTreeUI attempts to get the boundaries for the node associated with the location on screen, but fails and tries to access a null Rectangle, causing a user-visible NullPointerException. By implementing equals() for GraphNode, nodes for graphs that are already in the tree are not removed and re-added when updating groups, and the exception can no longer be reproduced. This potentially also resolves some redraw issues.

#!/bin/bash
if [ -z "${JDK7}" ]; then
  echo "JDK7 is not defined."
  exit 1;
fi
if [ -z "${MAXINE}" ]; then
  echo "MAXINE is not defined. It must point to a maxine repository directory."
  exit 1;
fi
if [ -z "${DACAPO}" ]; then
  echo "DACAPO is not defined. It must point to a Dacapo benchmark directory."
  exit 1;
fi
COMMAND="${JDK7}/bin/java -graal -Xms1g -Xmx2g -esa -classpath ${DACAPO}/dacapo-9.12-bach.jar -XX:-GraalBailoutIsFatal -G:-QuietBailout $* Harness --preserve -n 10 jython"
echo $COMMAND
$COMMAND