void (@NotNull SerializedStubTree newTree, @NotNull SerializedStubTree existingTree) { String oldTreeDump = "\nexisting tree " + dumpStub(existingTree); String newTreeDump = "\nnew tree " + dumpStub(newTree); byte[] hash = newTree.getTreeHash(); LOG.info("Stub tree hashing collision. " + "Different trees have the same hash = " + StringUtil.toHexString(hash) + ". " + oldTreeDump + newTreeDump, new Exception()); }