orderedNodeConnections.remove(new NodeConnection.Succ<>((N) node));
      }
    }

    /*
     * TODO(cpovirk): `return (V) removedValue` once our checker permits that.
     *
     * (We promoted a class of warnings into errors because sometimes they indicate real problems.
     * But now we need to "undo" some instance of spurious errors, as discussed in
     * https://github.com/jspecify/checker-framework/issues/8.)

// should do so by creating a new Header and copying the fields
// that they are interested in preserving.
type Header struct {
	// Typeflag is the type of header entry.
	// The zero value is automatically promoted to either TypeReg or TypeDir
	// depending on the presence of a trailing slash in Name.
	Typeflag byte

	Name     string // Name of file entry
	Linkname string // Target name of link (valid for TypeLink or TypeSymlink)

        upload.assertTasks("prepReleaseNightly uploadAll")
        assertEquals(expectedGradleParams, upload.gradleParams)

        val promote = gradleStep(steps, 2)
        promote.assertTasks("prepReleaseNightly promoteReleaseNightly")
        assertEquals(expectedGradleParams, promote.gradleParams)
    }

    @Test
    fun `start release cycle promotion build type runs one gradle invocation`() {

                    + " ((3\\.)? The name of .+ may not be used to endorse or promote products\n"
                    + "    derived from this software without specific prior written permission\\.|\n"
                    + "  (3\\.)? Neither the name of .+ nor the names of its\n"
                    + "     contributors may be used to endorse or promote products derived from\n"

      call.call.cancel()
    }
    for (call in runningAsyncCalls) {
      call.call.cancel()
    }
    for (call in runningSyncCalls) {
      call.cancel()
    }
  }

  /**
   * Promotes eligible calls from [readyAsyncCalls] to [runningAsyncCalls] and runs them on the
   * executor service. Must not be called with synchronization because executing calls can call
   * into user code.
   *

      if (bytesRemaining == 0L) return -1

      val read = super.read(sink, minOf(bytesRemaining, byteCount))
      if (read == -1L) {
        carrier.noNewExchanges() // The server didn't supply the promised content length.
        val e = ProtocolException("unexpected end of stream")
        responseBodyComplete(TRAILERS_RESPONSE_BODY_TRUNCATED)
        throw e
      }

      bytesRemaining -= read

  public void testFromNullable() {
    Optional<String> optionalName = Optional.fromNullable("bob");
    assertThat(optionalName.get()).isEqualTo("bob");
  }

  public void testFromNullable_null() {
    // not promised by spec, but easier to test
    assertThat(Optional.fromNullable(null)).isSameInstanceAs(Optional.absent());
  }

  public void testIsPresent_no() {
    assertFalse(Optional.absent().isPresent());
  }

          throw new AssertionFailedError("You weren't supposed to actually invoke me!");
        }
      };

  public void testAnyAndNone_logicalOps() throws Exception {
    // These are testing behavior that's never promised by the API, but since
    // we're lucky enough that these do pass, it saves us from having to write
    // more excruciating tests! Hooray!

    assertThat(CharMatcher.none().negate()).isSameInstanceAs(CharMatcher.any());

			// we have written the entire stream, return right here.
			return written, nil
		}

		if eof {
			// We reached EOF prematurely but we did not write everything
			// that we promised that we would write.
			if totalSize > 0 && written != totalSize {
				return written, io.ErrUnexpectedEOF
			}
			return written, nil
		}
	}
}

// SafeClose safely closes any channel of any type

// but may produce false positives on non-trivial paths.
func pathNeedsClean(path []byte) bool {
	if len(path) == 0 {
		return true
	}

	rooted := path[0] == '/'
	n := len(path)

	r, w := 0, 0
	if rooted {
		r, w = 1, 1
	}

	for r < n {
		switch {
		case path[r] > 127:
			// Non ascii.
			return true
		case path[r] == '/':
			// multiple / elements