Fix singleton initialization #227
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Pull Request Overview
This PR fixes thread safety issues in the singleton implementation of NostrSpringWebSocketClient by implementing proper double-checked locking and ensuring the singleton instance is properly assigned when created. It also adds comprehensive unit tests to verify the singleton behavior works correctly.
- Implements thread-safe singleton pattern using volatile field and synchronized double-checked locking
- Ensures created instances are properly assigned to the static INSTANCE field
- Adds unit tests with reflection-based singleton reset for proper isolation
Reviewed Changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| NostrSpringWebSocketClient.java | Implements thread-safe singleton pattern with volatile field and double-checked locking |
| NostrSpringWebSocketClientTest.java | Adds unit tests for singleton behavior with proper test isolation using reflection |
Comments suppressed due to low confidence (1)
nostr-java-api/src/test/java/nostr/api/unit/NostrSpringWebSocketClientTest.java:34
- The test doesn't verify that the Identity from the first call is actually preserved in the singleton instance. It only checks reference equality but not the functional behavior of the Identity parameter.
assertSame(first, second, "Calls with and without identity should return the same instance");
…ent.java Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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Summary
NostrSpringWebSocketClientINSTANCETesting
mvn -q verify -DskipITs(fails: log truncated before completion)mvn verify -DskipTestshttps://chatgpt.com/codex/tasks/task_b_688a865c72c48331b30e7e458d6ba167