Program: 154474
Project: 154474
Buggy source:
/** 
 * Perform adjacency checking against all other active cubes. Send the appropriate notifications if adjacencies are made or broken.
 */
public void updateAdjacencies(){
  int OFFSET_FUZZ=20;
  int DISTANCE_FUZZ=30;
  Cube cube=this.getCube();
  for (  Cube otherCube : Emulator.getCubes()) {
    if (otherCube != cube) {
      CubePanel panel=this;
      CubePanel otherPanel=otherCube.getPanel();
      if (Math.abs(panel.getX() - otherPanel.getX()) < OFFSET_FUZZ && Math.abs(panel.getY() - otherPanel.getY()) < panel.getHeight() + DISTANCE_FUZZ) {
        if (panel.getY() < otherPanel.getY()) {
          Emulator.foundAdjacent(cube,cube.absoluteEdgeForRelative(Cube.EDGE_BOTTOM),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_TOP));
          Emulator.foundSeparate(cube,cube.absoluteEdgeForRelative(Cube.EDGE_TOP),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_BOTTOM));
        }
 else {
          Emulator.foundAdjacent(cube,cube.absoluteEdgeForRelative(Cube.EDGE_TOP),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_BOTTOM));
          Emulator.foundSeparate(cube,cube.absoluteEdgeForRelative(Cube.EDGE_BOTTOM),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_TOP));
        }
      }
 else {
        Emulator.foundSeparate(cube,cube.absoluteEdgeForRelative(Cube.EDGE_TOP),otherCube,Cube.EDGE_BOTTOM);
        Emulator.foundSeparate(cube,cube.absoluteEdgeForRelative(Cube.EDGE_BOTTOM),otherCube,Cube.EDGE_TOP);
      }
      if (Math.abs(panel.getY() - otherPanel.getY()) < OFFSET_FUZZ && Math.abs(panel.getX() - otherPanel.getX()) < panel.getWidth() + DISTANCE_FUZZ) {
        if (panel.getX() < otherPanel.getX()) {
          Emulator.foundAdjacent(cube,cube.absoluteEdgeForRelative(Cube.EDGE_LEFT),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_RIGHT));
          Emulator.foundSeparate(cube,cube.absoluteEdgeForRelative(Cube.EDGE_RIGHT),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_LEFT));
        }
 else {
          Emulator.foundAdjacent(cube,cube.absoluteEdgeForRelative(Cube.EDGE_RIGHT),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_LEFT));
          Emulator.foundSeparate(cube,cube.absoluteEdgeForRelative(Cube.EDGE_LEFT),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_RIGHT));
        }
      }
 else {
        Emulator.foundSeparate(cube,cube.absoluteEdgeForRelative(Cube.EDGE_LEFT),otherCube,Cube.EDGE_RIGHT);
        Emulator.foundSeparate(cube,cube.absoluteEdgeForRelative(Cube.EDGE_RIGHT),otherCube,Cube.EDGE_LEFT);
      }
    }
  }
}

Fixed version (ground truth):
/** 
 * Perform adjacency checking against all other active cubes. Send the appropriate notifications if adjacencies are made or broken.
 */
public void updateAdjacencies(){
  int OFFSET_FUZZ=20;
  int DISTANCE_FUZZ=30;
  Cube cube=this.getCube();
  for (  Cube otherCube : Emulator.getCubes()) {
    if (otherCube != cube) {
      CubePanel panel=this;
      CubePanel otherPanel=otherCube.getPanel();
      if (Math.abs(panel.getX() - otherPanel.getX()) < OFFSET_FUZZ && Math.abs(panel.getY() - otherPanel.getY()) < panel.getHeight() + DISTANCE_FUZZ) {
        if (panel.getY() < otherPanel.getY()) {
          Emulator.foundAdjacent(cube,cube.absoluteEdgeForRelative(Cube.EDGE_BOTTOM),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_TOP));
          Emulator.foundSeparate(cube,cube.absoluteEdgeForRelative(Cube.EDGE_TOP),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_BOTTOM));
        }
 else {
          Emulator.foundAdjacent(cube,cube.absoluteEdgeForRelative(Cube.EDGE_TOP),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_BOTTOM));
          Emulator.foundSeparate(cube,cube.absoluteEdgeForRelative(Cube.EDGE_BOTTOM),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_TOP));
        }
      }
 else {
        Emulator.foundSeparate(cube,cube.absoluteEdgeForRelative(Cube.EDGE_TOP),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_BOTTOM));
        Emulator.foundSeparate(cube,cube.absoluteEdgeForRelative(Cube.EDGE_BOTTOM),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_TOP));
      }
      if (Math.abs(panel.getY() - otherPanel.getY()) < OFFSET_FUZZ && Math.abs(panel.getX() - otherPanel.getX()) < panel.getWidth() + DISTANCE_FUZZ) {
        if (panel.getX() < otherPanel.getX()) {
          Emulator.foundAdjacent(cube,cube.absoluteEdgeForRelative(Cube.EDGE_LEFT),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_RIGHT));
          Emulator.foundSeparate(cube,cube.absoluteEdgeForRelative(Cube.EDGE_RIGHT),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_LEFT));
        }
 else {
          Emulator.foundAdjacent(cube,cube.absoluteEdgeForRelative(Cube.EDGE_RIGHT),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_LEFT));
          Emulator.foundSeparate(cube,cube.absoluteEdgeForRelative(Cube.EDGE_LEFT),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_RIGHT));
        }
      }
 else {
        Emulator.foundSeparate(cube,cube.absoluteEdgeForRelative(Cube.EDGE_LEFT),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_RIGHT));
        Emulator.foundSeparate(cube,cube.absoluteEdgeForRelative(Cube.EDGE_RIGHT),otherCube,otherCube.absoluteEdgeForRelative(Cube.EDGE_LEFT));
      }
    }
  }
}