Program: 917
Project: 917
Buggy source:
@Before public void setup() throws Exception {
  super.setup();
  lightRules=new LightPropagationRules();
  blockManager=new BlockManagerImpl(new NullWorldAtlas(),Lists.<String>newArrayList(),Maps.<String,Short>newHashMap(),true,new DefaultBlockFamilyFactoryRegistry());
  CoreRegistry.put(BlockManager.class,blockManager);
  fullLight=new Block();
  fullLight.setDisplayName("String_Node_Str");
  fullLight.setUri(new BlockUri("String_Node_Str"));
  fullLight.setId((byte)2);
  fullLight.setLuminance(ChunkConstants.MAX_LIGHT);
  blockManager.addBlockFamily(new SymmetricFamily(fullLight.getURI(),fullLight),true);
  weakLight=new Block();
  weakLight.setDisplayName("String_Node_Str");
  weakLight.setUri(new BlockUri("String_Node_Str"));
  weakLight.setId((byte)3);
  weakLight.setLuminance((byte)2);
  blockManager.addBlockFamily(new SymmetricFamily(weakLight.getURI(),weakLight),true);
  mediumLight=new Block();
  mediumLight.setDisplayName("String_Node_Str");
  mediumLight.setUri(new BlockUri("String_Node_Str"));
  mediumLight.setId((byte)4);
  mediumLight.setLuminance((byte)5);
  blockManager.addBlockFamily(new SymmetricFamily(mediumLight.getURI(),mediumLight),true);
  solid=new Block();
  solid.setDisplayName("String_Node_Str");
  solid.setUri(new BlockUri("String_Node_Str"));
  solid.setId((byte)5);
  for (  Side side : Side.values()) {
    solid.setFullSide(side,true);
  }
  blockManager.addBlockFamily(new SymmetricFamily(solid.getURI(),solid),true);
  solidMediumLight=new Block();
  solidMediumLight.setDisplayName("String_Node_Str");
  solidMediumLight.setUri(new BlockUri("String_Node_Str"));
  solidMediumLight.setId((byte)6);
  solidMediumLight.setLuminance((byte)5);
  for (  Side side : Side.values()) {
    solidMediumLight.setFullSide(side,true);
  }
  blockManager.addBlockFamily(new SymmetricFamily(solidMediumLight.getURI(),solidMediumLight),true);
  air=BlockManager.getAir();
}

Fixed version (ground truth):
@Before public void setup() throws Exception {
  super.setup();
  lightRules=new LightPropagationRules();
  blockManager=new BlockManagerImpl(new NullWorldAtlas(),Lists.<String>newArrayList(),Maps.<String,Short>newHashMap(),true,new DefaultBlockFamilyFactoryRegistry());
  CoreRegistry.put(BlockManager.class,blockManager);
  fullLight=new Block();
  fullLight.setDisplayName("String_Node_Str");
  fullLight.setUri(new BlockUri("String_Node_Str"));
  fullLight.setId((short)2);
  fullLight.setLuminance(ChunkConstants.MAX_LIGHT);
  blockManager.addBlockFamily(new SymmetricFamily(fullLight.getURI(),fullLight),true);
  weakLight=new Block();
  weakLight.setDisplayName("String_Node_Str");
  weakLight.setUri(new BlockUri("String_Node_Str"));
  weakLight.setId((short)3);
  weakLight.setLuminance((byte)2);
  blockManager.addBlockFamily(new SymmetricFamily(weakLight.getURI(),weakLight),true);
  mediumLight=new Block();
  mediumLight.setDisplayName("String_Node_Str");
  mediumLight.setUri(new BlockUri("String_Node_Str"));
  mediumLight.setId((short)4);
  mediumLight.setLuminance((byte)5);
  blockManager.addBlockFamily(new SymmetricFamily(mediumLight.getURI(),mediumLight),true);
  solid=new Block();
  solid.setDisplayName("String_Node_Str");
  solid.setUri(new BlockUri("String_Node_Str"));
  solid.setId((short)5);
  for (  Side side : Side.values()) {
    solid.setFullSide(side,true);
  }
  blockManager.addBlockFamily(new SymmetricFamily(solid.getURI(),solid),true);
  solidMediumLight=new Block();
  solidMediumLight.setDisplayName("String_Node_Str");
  solidMediumLight.setUri(new BlockUri("String_Node_Str"));
  solidMediumLight.setId((short)6);
  solidMediumLight.setLuminance((byte)5);
  for (  Side side : Side.values()) {
    solidMediumLight.setFullSide(side,true);
  }
  blockManager.addBlockFamily(new SymmetricFamily(solidMediumLight.getURI(),solidMediumLight),true);
  air=BlockManager.getAir();
}