}

    @Override
    public E first() {
      synchronized (mutex) {
        return delegate().first();
      }
    }

    @Override
    public E last() {
      synchronized (mutex) {
        return delegate().last();
      }
    }

    private static final long serialVersionUID = 0;
  }

  private static <E extends @Nullable Object> List<E> list(

    }

    @Override
    public E first() {
      synchronized (mutex) {
        return delegate().first();
      }
    }

    @Override
    public E last() {
      synchronized (mutex) {
        return delegate().last();
      }
    }

    private static final long serialVersionUID = 0;
  }

  private static <E extends @Nullable Object> List<E> list(

### What is a Process

The word **process** is normally used in a more specific way, only referring to the thing that is running in the operating system (like in the last point above):

* A particular program while it is **running** on the operating system.

    val bytes = "0201ff".decodeHex()
    assertThat(Adapters.INTEGER_AS_LONG.toDer(-1L)).isEqualTo(bytes)
    assertThat(Adapters.INTEGER_AS_LONG.fromDer(bytes)).isEqualTo(-1L)
  }

  @Test fun `last byte all zeros`() {
    val bytes = "0202ff00".decodeHex()
    assertThat(Adapters.INTEGER_AS_LONG.toDer(-256L)).isEqualTo(bytes)
    assertThat(Adapters.INTEGER_AS_LONG.fromDer(bytes)).isEqualTo(-256L)
  }

                }
            }
            // Don't think we can rely on n being correct here. Must use byteCount.
            // Last paragraph of section 3.13.3 eludes to this.

            bufferIndex += this.byteCount;
        }

        int len = bufferIndex - start;
        this.length = len;

      }
    }

    /**
     * Throws UnsupportedOperationException. A future version may support this operation. Then the
     * value for any given key will be the one that was last supplied in a {@code put} operation for
     * that key.
     *
     * @throws UnsupportedOperationException always
     * @since 31.1
     * @deprecated This method is not currently implemented, and may never be.

        } else {
          entry.zombie = true // We can't delete it until the current edit completes.
        }
      }
    }

    /**
     * Returns an unbuffered input stream to read the last committed value, or null if no value has
     * been committed.
     */
    fun newSource(index: Int): Source? {
      synchronized(this@DiskLruCache) {
        check(!done)

 *
 * <ul>
 *   <li>Each lock adds (and removes) itself to/from a ThreadLocal Set of acquired locks when the
 *       Thread acquires its first hold (and releases its last remaining hold).
 *   <li>Before the lock is acquired, the lock is checked against the current set of acquired
 *       locks---to each of the acquired locks, an edge from the soon-to-be-acquired lock is either

    writeMedium(frame, 8) // Without debug data there's only 2 32-bit fields.
    frame.writeByte(TYPE_GOAWAY)
    frame.writeByte(FLAG_NONE)
    frame.writeInt(0) // connection-scope
    frame.writeInt(expectedStreamId) // last good stream.
    frame.writeInt(expectedError.httpCode)

    // Check writer sends the same bytes.
    assertThat(sendGoAway(expectedStreamId, expectedError, EMPTY_BYTE_ARRAY))
      .isEqualTo(frame)

Go 1.23 changed
[`net/http.ServeContent`](/pkg/net/http#ServeContent),
[`net/http.ServeFile`](/pkg/net/http#ServeFile), and
[`net/http.ServeFS`](/pkg/net/http#ServeFS) to
remove Cache-Control, Content-Encoding, Etag, and Last-Modified headers
when serving an error. This behavior is controlled by
the [`httpservecontentkeepheaders` setting](/pkg/net/http#ServeContent).
Using `httpservecontentkeepheaders=1` restores the pre-Go 1.23 behavior.