Program: 93282
Project: 93282
Buggy source:
@Test public void getBoundingBoxTest(){
  Tile tile1=new Tile(0,0,(byte)0,TILE_SIZE);
  Assert.assertTrue(tile1.getBoundingBox().equals(new BoundingBox(MercatorProjection.LATITUDE_MIN,-180,MercatorProjection.LATITUDE_MAX,180)));
  Tile tile2=new Tile(0,0,(byte)1,TILE_SIZE);
  Assert.assertEquals(tile1.getBoundingBox().maxLatitude,tile2.getBoundingBox().maxLatitude,0.0001);
  Assert.assertEquals(tile1.getBoundingBox().minLongitude,tile2.getBoundingBox().minLongitude,0.0001);
  Tile tile3=new Tile(1,1,(byte)1,TILE_SIZE);
  Assert.assertEquals(tile1.getBoundingBox().minLatitude,tile3.getBoundingBox().minLatitude,0.0001);
  Assert.assertNotEquals(tile1.getBoundingBox().minLongitude,tile3.getBoundingBox().minLongitude,0.0001);
  Assert.assertEquals(tile3.getBoundingBox().minLongitude,0,0.0001);
  Assert.assertEquals(tile3.getBoundingBox().maxLongitude,180,0.0001);
  Tile tile4=new Tile(0,0,(byte)12,TILE_SIZE);
  Assert.assertEquals(tile1.getBoundingBox().maxLatitude,tile4.getBoundingBox().maxLatitude,0.0001);
  Assert.assertEquals(tile1.getBoundingBox().minLongitude,tile4.getBoundingBox().minLongitude,0.0001);
  Tile tile5=new Tile(0,0,(byte)24,TILE_SIZE);
  Assert.assertEquals(tile1.getBoundingBox().maxLatitude,tile5.getBoundingBox().maxLatitude,0.0001);
  Assert.assertEquals(tile1.getBoundingBox().minLongitude,tile5.getBoundingBox().minLongitude,0.0001);
}

Fixed version (ground truth):
@Test public void getBoundingBoxTest(){
  for (byte zoom=(byte)0; zoom < 25; zoom++) {
    Tile tile1=new Tile(0,0,zoom,TILE_SIZE);
    if (zoom == 0) {
      Assert.assertTrue(tile1.getBoundingBox().equals(new BoundingBox(MercatorProjection.LATITUDE_MIN,-180,MercatorProjection.LATITUDE_MAX,180)));
    }
    Tile tile2=new Tile(0,0,zoom,TILE_SIZE);
    Assert.assertEquals(tile1.getBoundingBox().maxLatitude,tile2.getBoundingBox().maxLatitude,0.0001);
    Assert.assertEquals(tile1.getBoundingBox().minLongitude,tile2.getBoundingBox().minLongitude,0.0001);
    if (zoom >= 1) {
      Tile tile3=new Tile(1,1,zoom,TILE_SIZE);
      Assert.assertEquals(tile1.getBelow().getBoundingBox().minLatitude,tile3.getBoundingBox().minLatitude,0.0001);
      Assert.assertEquals(tile1.getRight().getBoundingBox().minLongitude,tile3.getBoundingBox().minLongitude,0.0001);
      if (zoom == 1) {
        Assert.assertEquals(tile3.getBoundingBox().minLongitude,0,0.0001);
        Assert.assertEquals(tile3.getBoundingBox().maxLongitude,180,0.0001);
      }
      Assert.assertEquals(tile3.getBoundingBox(),Tile.getBoundingBox(tile3,tile3));
    }
    Tile tile4=new Tile(0,0,zoom,TILE_SIZE);
    Assert.assertEquals(tile1.getBoundingBox().maxLatitude,tile4.getBoundingBox().maxLatitude,0.0001);
    Assert.assertEquals(tile1.getBoundingBox().minLongitude,tile4.getBoundingBox().minLongitude,0.0001);
    Tile tile5=new Tile(0,0,zoom,TILE_SIZE);
    Assert.assertEquals(tile1.getBoundingBox().maxLatitude,tile5.getBoundingBox().maxLatitude,0.0001);
    Assert.assertEquals(tile1.getBoundingBox().minLongitude,tile5.getBoundingBox().minLongitude,0.0001);
    Assert.assertEquals(tile1.getBoundingBox(),Tile.getBoundingBox(tile1,tile1));
    Assert.assertEquals(tile2.getBoundingBox(),Tile.getBoundingBox(tile2,tile2));
    Assert.assertEquals(tile4.getBoundingBox(),Tile.getBoundingBox(tile4,tile4));
    Assert.assertEquals(tile4.getBoundingBox(),Tile.getBoundingBox(tile5,tile5));
  }
}