// If we reach here without exceptions, thread-safety is maintained
            assertTrue(true);
        } catch (final InterruptedException e) {
            fail("Interrupted during execution");
        } catch (final ExecutionException e) {
            fail("Execution failed: " + e.getMessage());
        } finally {
            executor.shutdown();
            try {

        assertThrows(
                ChecksumFailedException.class,
                () -> wagonManager.getArtifact(artifact, repo, null, false),
                "Checksum verification did not fail");

        wagon.clearExpectedContent();
        wagon.addExpectedContent("path", "lower-case-checksum");
        wagon.addExpectedContent("path.md5", "50b2cf50a103a965efac62b983035cac");

        // This test assumes that the AvPair constructor does NOT make a defensive copy of the raw array.
        // If a defensive copy were made, this test would fail, and the behavior would be more robust.
        // Given the current implementation, direct modification of the passed array affects the AvPair.

  private UncaughtExceptionHandlers() {}

  /**
   * Returns an exception handler that exits the system. This is particularly useful for the main
   * thread, which may start up other, non-daemon threads, but fail to fully initialize the
   * application successfully.
   *
   * <p>Example usage:
   *
   * <pre>
   * public static void main(String[] args) {

      } catch (e: Throwable) {
        failure = e
      }

      if (entry.input in knownFailures) {
        if (failure == null) failures += AssertionError("known failure didn't fail: $entry")
      } else {
        if (failure != null) failures += failure
      }
    }

    if (failures.isNotEmpty()) {
      for (failure in failures) {
        println(failure)
      }

        context.info("    --model           Fix Maven 4 compatibility issues in POM files");
        context.info("    --plugins         Upgrade plugins known to fail with Maven 4");
        context.info(
                "-a, --all             Apply all upgrades (equivalent to --model-version 4.1.0 --infer --model --plugins)");
        context.unindent();
        context.println();

            // The root locator can be used very early during the setup of Maven,
            // even before the arguments from the command line are parsed.  Any exception
            // that would happen here should cause the build to fail at a later stage
            // (when actually parsing the POM) and will lead to a better exception being
            // displayed to the user, so just bail out and return false.
        }
        return false;
    }

      return this;
    }

    /**
     * Associates the ({@code rowKey}, {@code columnKey}) pair with {@code value} in the built
     * table. Duplicate key pairs are not allowed and will cause {@link #build} to fail.
     */
    @CanIgnoreReturnValue
    public Builder<R, C, V> put(R rowKey, C columnKey, V value) {
      cells.add(cellOf(rowKey, columnKey, value));
      return this;
    }

    /**

        IdnDnsResolver resolver = new IdnDnsResolver();

        // Test empty brackets - should be treated as invalid hostname
        try {
            resolver.resolve("[]");
            fail("Should throw UnknownHostException for empty brackets");
        } catch (UnknownHostException e) {
            // Expected behavior
        }
    }

      }
    }
  }

  private static void assertContains(String expectedSubstring, String actual) {
    // TODO(kevinb): use a Truth assertion here
    if (!actual.contains(expectedSubstring)) {
      fail("expected <" + actual + "> to contain <" + expectedSubstring + ">");
    }
  }