{"task": {"agent_timeout": 14400, "task": "mockito__mockito3173", "verifier_timeout": 7200, "instruction": "<uploaded_files>\n/workspace/mockito\n</uploaded_files>\n\nI've uploaded a Java code repository in the directory /workspace/mockito. Consider the following issue description:\n\n<issue_description>\n# Fixes #3160 : Fix interference between spies when spying on records.\n\nThis fixes #3160. This is a bug where spied records end up having all their fields null. Here's a reproducer of the bug:\n\n```java\n@Test\nvoid myTest() {\n    spy(List.of(\"something\"));\n\n    record MyRecord(String name) {}\n    MyRecord spiedRecord = spy(new MyRecord(\"something\"));\n    assertEquals(\"something\", spiedRecord.name()); // fails because spiedRecord.name() is null\n}\n```\n\nThe issue only occurs when spying records if `AbstractCollection` (or one of its children) is also spied. This is why this reproducer passes if the first line is commented out.\n\nThe problem happens because all superclasses and interfaces of `java.util.ImmutableCollections.List12` (the implementation returned by `List.of()` are transformed by `ByteBuddyAgent` and `InlineDelegateByteBuddyMockMaker` (see `InlineBytecodeGenerator::triggerRetransformation`. However, one of the superclasses, `AbstractCollection`, happens to also be used by `MethodHandle`, and when it does, Mockito trips over itself and its fallback strategy also fails for records.\n\nIn other words, in the process of constructing a record for spying, `InstrumentationMemberAccessor::newInstance` calls `MethodHandle::invokeWithArguments`, which uses a collection. Since the `AbstractCollection` class was instrumented during the earlier spy creation, the construction is intercepted and calls `isMockConstruction` (in `InlineDelegateByteBuddyMockMaker`). Since the `mockitoConstruction` boolean is `true`, because there is indeed an ongoing mock construction, Mockito thinks that the current constructor `AbstractCollection()` is the correct constructor to implement, and `isMockConstruction` returns `true`. `onConstruction` then does one last check that the type of the constructor matches the object to spy, and when it doesn't, it throws an exception (`InlineDelegateByteBuddyMockMaker` line 287).\n\nMockito then considers that the spy creation has failed and falls back on creating a mock and then copying fields from the object to spy to the newly created mock (`MockUtil::createMock`). This strategy fails for records, because their fields cannot be set by `MethodHandles::unreflectSetter` (see the javadoc on the method), as opposed to classes, where even final fields can be set. This failure is then ignored, and fields are left uninitialized (see `LenientCopyTool::copyValues`). The interference betwen spies at the root of this issue also occurs for classes, but because the fallback can successfully copy the fields, the issue probably went unnoticed.\n\n**Testing**: I was unable to add a test for this, because the language level is set to 11, before records existed. All existing tests are still passing, though, and the reproducer above fails on the master branch but passes on mine.\n\n\n## Repository Information\n- **Repository**: mockito/mockito\n- **Pull Request**: #3173\n- **Base Commit**: `bfee15dda7acc41ef497d8f8a44c74dacce2933a`\n\n## Related Issues\n- https://github.com/mockito/mockito/issues/3160\n- https://github.com/mockito/mockito/issues/3160\n</issue_description>\n\nCan you help me implement the necessary changes to the repository so that the requirements specified in the <issue_description> are met?\nI've already taken care of all changes to any of the test files described in the <issue_description>. This means you DON'T have to modify the testing logic or any of the tests in any way!\nAlso the development Java environment is already set up for you (i.e., all dependencies already installed), so you don't need to install other packages.\nYour task is to make the minimal changes to non-test files in the /workspace/mockito directory to ensure the <issue_description> is satisfied.\n\nFollow these phases to resolve the issue:\n\nPhase 1. READING: read the problem and reword it in clearer terms\n   1.1 If there are code or config snippets. Express in words any best practices or conventions in them.\n   1.2 Highlight message errors, method names, variables, file names, stack traces, and technical details.\n   1.3 Explain the problem in clear terms.\n   1.4 Enumerate the steps to reproduce the problem.\n   1.5 Highlight any best practices to take into account when testing and fixing the issue.\n\nPhase 2. RUNNING: install and run the tests on the repository\n   2.1 Follow the readme.\n   2.2 Install the environment and anything needed.\n   2.3 Iterate and figure out how to run the tests.\n\nPhase 3. EXPLORATION: find the files that are related to the problem and possible solutions\n   3.1 Use `grep` to search for relevant methods, classes, keywords and error messages.\n   3.2 Identify all files related to the problem statement.\n   3.3 Propose the methods and files to fix the issue and explain why.\n   3.4 From the possible file locations, select the most likely location to fix the issue.\n\nPhase 4. TEST CREATION: before implementing any fix, create a script to reproduce and verify the issue\n   4.1 Look at existing test files in the repository to understand the test format/structure.\n   4.2 Create a minimal reproduction script that reproduces the located issue.\n   4.3 Run the reproduction script with `javac <classname>.java && java <classname>` to confirm you are reproducing the issue.\n   4.4 Adjust the reproduction script as necessary.\n\nPhase 5. FIX ANALYSIS: state clearly the problem and how to fix it\n   5.1 State clearly what the problem is.\n   5.2 State clearly where the problem is located.\n   5.3 State clearly how the test reproduces the issue.\n   5.4 State clearly the best practices to take into account in the fix.\n   5.5 State clearly how to fix the problem.\n\nPhase 6. FIX IMPLEMENTATION: Edit the source code to implement your chosen solution.\n   6.1 Make minimal, focused changes to fix the issue.\n\nPhase 7. VERIFICATION: Test your implementation thoroughly.\n   7.1 Run your reproduction script to verify the fix works.\n   7.2 Add edge cases to your test script to ensure comprehensive coverage.\n   7.3 Run existing tests related to the modified code with `mvn test` to ensure you haven't broken anything.\n\nPhase 8. FINAL REVIEW: Carefully re-read the problem description and compare your changes with the base commit bfee15dda7acc41ef497d8f8a44c74dacce2933a.\n   8.1 Ensure you've fully addressed all requirements.\n   8.2 Run any tests in the repository related to:\n      8.2.1 The issue you are fixing\n      8.2.2 The files you modified\n      8.2.3 The functions you changed\n   8.3 If any tests fail, revise your implementation until all tests pass.\n\nBe thorough in your exploration, testing, and reasoning. It's fine if your thinking process is lengthy - quality and completeness are more important than brevity.\n\nIMPORTANT CONSTRAINTS:\n- ONLY modify files within the /workspace/mockito directory\n- DO NOT navigate outside this directory (no `cd ..` or absolute paths to other locations)\n- DO NOT create, modify, or delete any files outside the repository\n- All your changes must be trackable by `git diff` within the repository\n- If you need to create test files, create them inside the repository directory\n", "memory": "12g", "runnable": false, "difficulty": "medium", "language": "", "cpus": 8, "instruction_truncated": false, "category": "software-development", "compose": false, "has_solution": true, "oracle": null, "docker_image": "", "taskset": "multi-swe-bench", "tags": ["java", "issue-resolving", "mockito"]}, "runs": []}