## We are caching BWC versions too, need these so we can build those
  export JAVA8_HOME="${HOME}"/.java/java8
  export JAVA11_HOME="${HOME}"/.java/java11
  export JAVA12_HOME="${HOME}"/.java/openjdk12
  export JAVA13_HOME="${HOME}"/.java/openjdk13
  export JAVA14_HOME="${HOME}"/.java/openjdk14
  export JAVA15_HOME="${HOME}"/.java/openjdk15

  ## 6.8 branch is not referenced from any bwc project in master so we need to

If you've found a bug, please contribute a failing test case so we can study and fix it.

If you have a new feature idea, please build it in an external library. There are
[many libraries][works_with_okhttp] that sit on top or hook in via existing APIs. If you build
something that integrates with OkHttp, tell us so that we can link it!

Before code can be accepted all contributors must complete our

If you've found a bug, please contribute a failing test case so we can study and fix it.

If you have a new feature idea, please build it in an external library. There are
[many libraries][works_with_okhttp] that sit on top or hook in via existing APIs. If you build
something that integrates with OkHttp, tell us so that we can link it!

Before code can be accepted all contributors must complete our

            // unknown phases, leave in existing order
            return 0;
        }
        if (i1 == -1) {
            // second one is known, so it comes first
            return 1;
        }
        if (i2 == -1) {
            // first one is known, so it comes first
            return -1;
        }
        int rv = Integer.compare(i1, i2);
        if (rv != 0) {
            return rv;
        }

{* ../../docs_src/dependencies/tutorial006_an_py310.py hl[10,15] *}

### Return values { #return-values }

And they can return values or not, the values won't be used.

So, you can reuse a normal dependency (that returns a value) you already use somewhere else, and even though the value won't be used, the dependency will be executed:

{* ../../docs_src/dependencies/tutorial006_an_py310.py hl[11,16] *}

     *
     * @param userProperties The mutable user properties, never {@code null}.
     * @see #contribute(ProtoSession)
     */
    default void contribute(Map<String, String> userProperties) {}

    /**
     * Invoked just before session is created with proto session instance. The proto session contains user and

    // NPE on null listener, so we propagate that contract up into the add method as well.
    checkNotNull(runnable, "Runnable was null.");
    checkNotNull(executor, "Executor was null.");

    // Lock while we check state. We must maintain the lock while adding the new pair so that
    // another thread can't run the list out from under us. We only add to the list if we have not

     *       cleared, we know that we're not executing inline any more
     * </ul>
     *
     * All the states where thread != currentThread are identical for our purposes, and so even
     * though it's racy, we don't care which of those values we get, so no need to synchronize.
     */
    @LazyInit @Nullable Thread thread;

    /** Only used by the thread associated with this object */
    @Nullable Runnable nextTask;

- Contains well-written, logical commits explaining *why* changes were made (e.g., “Add S3 bucket tagging support so that users can organize resources efficiently”).
- Is small, focused, and easy to review—ideally one commit, unless multiple commits better narrate complex work.

     *
     * crc0 = ~int0
     * crc1 = int1
     * crc2 = int2
     * crc3 = int3
     *
     * ...so we set crc0 so that computeForWord(crc0) = -1 and xoring it with the first int
     * gives us the desired result.  computeForWord(0) == 0, so all the others do the right thing.
     */
    private int crc0 = INVERSE_COMPUTE_FOR_WORD_OF_ALL_1S;
    private int crc1 = 0;
    private int crc2 = 0;