authenticationManager.addChain(chain);

        boolean result = authenticationManager.changePassword("testuser", "newpass");

        assertTrue(result);
        assertEquals(1, chain.changePasswordCallCount);
        assertEquals("testuser", chain.lastChangePasswordUsername);
        assertEquals("newpass", chain.lastChangePasswordPassword);
    }

    // Test changePassword with single chain failure
    @Test

        }

        // Perform sequential operations
        for (User user : users) {
            chain.update(user);
            chain.changePassword(user.getName(), "newpass" + user.getName());
            chain.load(user);
            if (users.indexOf(user) % 2 == 0) {
                chain.delete(user);
            }
        }

        // Verify all operations were tracked

        }
        [OldBase, OldSub, NewBase, NewSub].each {
            classes[it.simpleName] = instanceScopedPool.get(it.name)
        }

        classes['OldBase'].superclass = classes['OldSuperInternal']
        classes['NewBase'].superclass = classes['NewSuperInternal']
        classes['OldSub'].superclass = classes['OldBase']
        classes['NewSub'].superclass = classes['NewBase']

    static class NewSuper {}

    static class NewBase extends NewSuper {}

    @Incubating
    static class NewIncubatingBase extends NewSuper {}

    @Incubating
    interface IncubatingInterface {}

    interface InternalInterface {}

    interface StablePublicInterface {}

    CtClass oldBase
    CtClass newBase
    CtClass newSuper
    CtClass newIncubatingBase

        }

        Optional<CtClass> oldClass = member.oldClass
        Optional<CtClass> newClass = member.newClass
        if (!oldClass.isPresent() || !newClass.isPresent()) {
            // breaking change would be reported
            return null
        }

        return checkSuperClassChanges(member, oldClass.get(), newClass.get())
    }

    protected abstract boolean changed(JApiCompatibility member)

     *
     * @return The new part of speech.
     */
    public String getNewPos() {
        return newPos;
    }

    /**
     * Sets the new part of speech.
     *
     * @param newPos The new part of speech.
     */
    public void setNewPos(final String newPos) {
        this.newPos = newPos;
    }

    /**
     * Returns the token.
     *
     * @return The token.
     */

                return currentHash.clone();
            }
        }

        public void updateHash(byte[] newHash) {
            synchronized (hashLock) {
                if (newHash != null && newHash.length == currentHash.length) {
                    this.currentHash = newHash.clone();
                }
            }
        }

        public boolean isValid() {
            return isValid;
        }

    void testSetPath() {
        // Test with mock
        String newPath = "/new/path/file.txt";
        doNothing().when(requestWithPath).setPath(newPath);

        requestWithPath.setPath(newPath);
        verify(requestWithPath, times(1)).setPath(newPath);

        // Test with implementation
        testImplementation.setPath(newPath);
        assertEquals(newPath, testImplementation.getPath());
    }

    @Test

	reloadSiteReplicationConfigRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerReloadSiteReplicationConfig, grid.NewMSS, grid.NewNoPayload)
	serverInfoRPC                  = grid.NewSingleHandler[*grid.MSS, *grid.JSON[madmin.ServerProperties]](grid.HandlerServerInfo, grid.NewMSS, madminServerProperties.NewJSON)

    if (existing != null) return existing

    if (computed == null) {
      computed = compute()
    }

    // If we successfully add the computed element, we're done.
    val newTags = tags.plus(type, computed)
    if (compareAndSet(tags, newTags)) return computed

    // We lost the race. Possibly to other code that was putting a *different* key. Try again!
  }