Consider code like this:
---
                          class Test {
                              void t(int i) {
                                  long local;
                                  System.err.println(switch (i) {
                                    case 0 -> {
                                        String var;
                                        int scopeHere;
                                        yield "";
                                    }
                                    default -> {
                                        String var;
                                        int scopeHere;
                                        yield "";
                                    }
                                  });
                                  switch (i) {
                                    case 0 -> {
                                        String var;
                                        int scopeHere;
                                    }
                                    default -> {
                                        String var;
                                        int scopeHere;
                                    }
                                  };
                              }
                          }
---

Calling the Trees.getScope for TreePath that corresponds to the "scopeHere" locations will not return correct results. The Scope will not contain variables "var" and "scopeHere".