try {
      collection.add(sampleElement);
      fail("add succeeded on unmodifiable collection");
    } catch (UnsupportedOperationException expected) {
    }

    assertCollectionsAreEquivalent(copy, collection);

    try {
      collection.addAll(siblingCollection);
      fail("addAll succeeded on unmodifiable collection");
    } catch (UnsupportedOperationException expected) {
    }

            context.put("userId", userId);
        }
    }

    /**
     * Log an authentication event with optimized performance
     *
     * @param success whether authentication succeeded
     * @param username the username (will be masked if configured)
     * @param authMethod authentication method used (domain or method)
     * @param remoteAddress remote address
     */

            .readTimeout(500, TimeUnit.MILLISECONDS)
            .build()
        try {
          client1.newCall(request).execute().use { response ->
            println("Response 1 succeeded: $response")
          }
        } catch (e: IOException) {
          println("Response 1 failed: $e")
        }

        // Copy to customize OkHttp for this request.
        val client2 = client.newBuilder()

        assertThrows(
                ArtifactNotFoundException.class,
                () -> artifactResolver.resolve(k, remoteRepositories(), localRepository()),
                "Resolution succeeded when it should have failed");
    }

    @Test
    void testResolutionOfAnArtifactWhereOneRemoteRepositoryIsBadButOneIsGood() throws Exception {
        Artifact l = createRemoteArtifact("l", "1.0-SNAPSHOT");

            if (!MessageDigest.isEqual(sig, cmp)) {
                return false; // Signature verification failed
            }
            return true; // Signature verification succeeded
        } finally {
            this.signingLock.unlock();
        }
    }

    /**
     * Securely wipe signing key from memory
     */
    public void secureWipeKey() {

                    } catch (ChecksumFailedException e) {
                        // if we catch a ChecksumFailedException, it means the transfer/read succeeded, but the
                        // checksum doesn't match. This could be a problem with the server (ibiblio HTTP-200 error

        }
    }

    /**
     * Attempt to recover from a recoverable RDMA error
     *
     * @param connection RDMA connection to recover
     * @param error the original error
     * @return true if recovery succeeded, false otherwise
     */
    private boolean attemptRecovery(RdmaConnection connection, Exception error) {
        int retryCount = 0;

        while (retryCount < maxRetries) {
            retryCount++;

			if testCase.success && err != nil {
				t.Errorf("Expected success but failed with %s", err)
			}
			if !testCase.success && err == nil {
				t.Errorf("Expected failed but succeeded")
			}
		})
	}
}

type formValues struct {
	http.Header
}

func newFormValues() formValues {
	return formValues{make(http.Header)}
}

// accumulated the maximum number of heal records per heal
// sequence. When the client consumes further records, the heal
// sequence automatically resumes. The return value indicates if the
// operation succeeded.
func (h *healSequence) pushHealResultItem(r madmin.HealResultItem) error {
	// start a timer to keep an upper time limit to find an empty
	// slot to add the given heal result - if no slot is found it

	// Call the ServeHTTP to execute the handler.
	apiRouter.ServeHTTP(rec, req)
	switch rec.Code {
	case http.StatusOK, http.StatusCreated, http.StatusAccepted, http.StatusNoContent:
		t.Fatalf("Test %v: expected failure, but succeeded with %v", instanceType, rec.Code)
	}

	// Verify response of the V2 signed HTTP request.
	// initialize HTTP NewRecorder, this records any mutations to response writer inside the handler.
	recV2 := httptest.NewRecorder()