}

  @MapFeature.Require(value = SUPPORTS_REMOVE, absent = ALLOWS_NULL_KEY_QUERIES)
  public void testRemove_nullKeyQueriesUnsupported() {
    try {
      assertFalse(getMap().remove(null, v3()));
    } catch (NullPointerException tolerated) {
      // since the operation would be a no-op, the exception is not required
    }
    expectUnchanged();
  }

  }

  @MapFeature.Require(value = SUPPORTS_REMOVE, absent = ALLOWS_NULL_KEY_QUERIES)
  public void testRemove_nullKeyQueriesUnsupported() {
    try {
      assertFalse(getMap().remove(null, v3()));
    } catch (NullPointerException tolerated) {
      // since the operation would be a no-op, the exception is not required
    }
    expectUnchanged();
  }

  }

  @MapFeature.Require(value = SUPPORTS_REMOVE, absent = ALLOWS_NULL_KEY_QUERIES)
  public void testRemove_nullKeyQueriesUnsupported() {
    try {
      assertFalse(getMap().remove(null, v3()));
    } catch (NullPointerException tolerated) {
      // since the operation would be a no-op, the exception is not required
    }
    expectUnchanged();
  }

    //                                                                        Small Helper
    //                                                                        ============
    /**
     * Verifies that the CRUD mode matches the expected mode.
     *
     * @param crudMode the actual CRUD mode
     * @param expectedMode the expected CRUD mode
     */
    protected void verifyCrudMode(final int crudMode, final int expectedMode) {

                try {
                    File tempFile = File.createTempFile(prefix, suffix);
                    tempFile.deleteOnExit();
                    return tempFile;
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
        };
        systemHelper.init();
        ComponentUtil.register(systemHelper, "systemHelper");

import static com.google.common.math.IntMath.sqrt;
import static java.lang.Math.max;
import static java.util.Objects.requireNonNull;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.math.IntMath;
import com.google.common.primitives.Ints;

            // Calculate 95th percentile
            long[] sortedTimes = responseTimeHistory.stream().mapToLong(Long::longValue).sorted().toArray();
            int p95Index = (int) Math.ceil(0.95 * sortedTimes.length) - 1;
            p95Index = Math.max(0, Math.min(p95Index, sortedTimes.length - 1));
            p95ResponseTime.set(sortedTimes[p95Index]);
        }
    }

    /**
     * Exception thrown when circuit breaker is open

        // Check format with class name, colon, count, and newline
        String[] lines = result.split("\n");
        assertEquals(2, lines.length);
        assertTrue(lines[0].matches("TestScoreBooster : \\d+"));
        assertTrue(lines[1].matches("TestScoreBooster : \\d+"));
    }

    // Test with null pointer exception
    public void test_execute_nullPointerException() {

                        }
                        in.close();
                    }
                } catch (final IOException ioe) {
                    logger.error("I/O error occurred: {}", ioe.getMessage(), ioe);
                }

            }
        } catch (final Exception e) {
            logger.error("Error in test execution", e);
        } finally {
            numComplete++;
        }

      this.everyMillis = everyMillis;
      this.interruptee = interruptee;
    }

    @Override
    public void run() {
      while (true) {
        try {
          Thread.sleep(everyMillis);
        } catch (InterruptedException e) {
          // ok. just stop sleeping.
        }
        if (shouldStop) {
          break;
        }
        interruptee.interrupt();
      }
    }

    void stopInterrupting() {