extends UnsupportedOperationException {
    // Package-private because this should only be thrown by loadAll() when it is not overridden.
    // Cache implementors may want to catch it but should not need to be able to throw it.
    UnsupportedLoadingOperationException() {}
  }

  /**
   * Thrown to indicate that an invalid response was returned from a call to {@link CacheLoader}.
   *

            try {
                Map<Path, Document> pomMap = Map.of(); // Empty for this test
                return doUpgrade(context, targetModel, pomMap);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }

        // Helper method from AbstractUpgradeStrategy

                                allUrls.add(polled.getUrl());
                            }
                        }
                    }
                    totalPolled.addAndGet(count);
                } catch (final InterruptedException e) {
                    Thread.currentThread().interrupt();
                } finally {
                    doneLatch.countDown();
                }
            }).start();
        }

    assertThat(bb).isEqualTo(expectedHashCode.bytes);
    assertEquals(expectedHashCode.asInt, hash.asInt());
    if (expectedHashCode.asLong == null) {
      try {
        hash.asLong();
        fail();
      } catch (IllegalStateException expected) {
      }
    } else {
      assertEquals(expectedHashCode.asLong.longValue(), hash.asLong());
    }
    assertThat(hash.toString()).isEqualTo(expectedHashCode.toString);

        DirectoryCacheEntry entry = directoryLeaseManager.getCacheEntry(directoryPath);
        entry.setMaxAge(1); // 1ms to expire immediately
        try {
            Thread.sleep(10);
        } catch (InterruptedException e) {
            // Ignore
        }

        // When lease is lost, cache entry should be removed
        when(baseLeaseManager.getLease(leaseKey)).thenReturn(null);

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// erasureSelfTest performs a self-test to ensure that erasure
// algorithms compute expected erasure codes. If any algorithm
// produces an incorrect value it fails with a hard error.
//
// erasureSelfTest tries to catch any issue in the erasure implementation
// early instead of silently corrupting data.
func erasureSelfTest() {
	// Approx runtime ~1ms
	var testConfigs [][2]uint8
	for total := uint8(4); total < 16; total++ {

        // so now evaluates if the waitCondition is successful
        // TODO: change this to a loop?
        boolean success
        try {
            success = waitCondition(this, ant)
        } catch (Exception e) {
            String msg = "Wait condition caught exception for ${name}"
            logger.error(msg, e)
            fail(msg, e)
        }
        if (success == false) {

                        }
                    } else {
                        queue.add(source);
                    }
                }
                exception = null;
                break;
            } catch (final Exception e) {
                exception = new SuggesterException(e);
                scrollId = null;
            }
        }

        docCount.getAndAdd(queue.size());

        queryFieldConfig.apiResponseFieldSet = null;

        try {
            queryFieldConfig.isApiResponseField("field1");
            fail("Should throw NullPointerException");
        } catch (NullPointerException e) {
            // Expected
        }
    }

    @Test
    public void test_getResponseFields() {
        String[] fields = { "field1", "field2", "field3" };