check() — netty Function Reference

Architecture documentation for the check() function in LeakPresenceDetector.java from the netty codebase.

Function java CommonUtil Logging calls 1 called by 2

Entity Profile

CommonUtil→ Logging→ check() — netty Function Reference

Dependency Diagram

graph TD
  95093f73_e143_2bf9_5d95_2adba188c280["check()"]
  3dc7780b_2502_84f5_0a0e_ccc5113b7e2d["ResourceScope"]
  95093f73_e143_2bf9_5d95_2adba188c280 -->|defined in| 3dc7780b_2502_84f5_0a0e_ccc5113b7e2d
  9091c485_77ea_292e_4e8a_05c5d72a80c3["check()"]
  9091c485_77ea_292e_4e8a_05c5d72a80c3 -->|calls| 95093f73_e143_2bf9_5d95_2adba188c280
  38dcc791_90be_c5aa_7d59_e5d118926a5a["close()"]
  38dcc791_90be_c5aa_7d59_e5d118926a5a -->|calls| 95093f73_e143_2bf9_5d95_2adba188c280
  9091c485_77ea_292e_4e8a_05c5d72a80c3["check()"]
  95093f73_e143_2bf9_5d95_2adba188c280 -->|calls| 9091c485_77ea_292e_4e8a_05c5d72a80c3
  style 95093f73_e143_2bf9_5d95_2adba188c280 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

common/src/main/java/io/netty/util/LeakPresenceDetector.java lines 282–309

        void check() {
            long n = openResourceCounter.sumThenReset();
            if (n != 0) {
                StringBuilder msg = new StringBuilder("Possible memory leak detected for resource scope '")
                        .append(name).append("'. ");
                if (n < 0) {
                    msg.append("Resource count was negative: A resource previously reported as a leak was released " +
                            "after all. Please ensure that that resource is released before its test finishes.");
                    throw new IllegalStateException(msg.toString());
                }
                if (TRACK_CREATION_STACK) {
                    msg.append("Creation stack traces:");
                    IllegalStateException ise = new IllegalStateException(msg.toString());
                    int i = 0;
                    for (Throwable t : creationStacks.values()) {
                        ise.addSuppressed(t);
                        if (i++ > 5) {
                            break;
                        }
                    }
                    creationStacks.clear();
                    throw ise;
                }
                msg.append("Please use paranoid leak detection to get more information, or set " +
                        "-D" + TRACK_CREATION_STACK_PROPERTY + "=true");
                throw new IllegalStateException(msg.toString());
            }
        }