static final int CANCELLED = 4;
      static final int INTERRUPTED = 8;

      private V value;
      private Throwable exception;

      /*
       * Acquisition succeeds if the future is done, otherwise it fails.
       */
      @Override
      protected int tryAcquireShared(int ignored) {
        if (isDone()) {
          return 1;
        }
        return -1;
      }

      /*

buckets: # # Name of the bucket # - name: bucket1 # # Policy to be set on the # # bucket [none|download|upload|public] # policy: none # # Purge if bucket exists already # purge: false # # set versioning for # # bucket [true|false] # versioning: false # # set objectlocking for # # bucket [true|false] NOTE: versioning is enabled by default if you use locking # objectlocking: false # - name: bucket2 # policy: none # purge: false # versioning: true # # set objectlocking for # # bucket [true|false] NOTE:...

	}
}

// IsPresent reports whether a KMS configuration is present.
// It returns an error if multiple KMS configurations are
// present or if one configuration is incomplete.
func IsPresent() (bool, error) {
	// isPresent reports whether at least one of the
	// given env. variables is present.
	isPresent := func(vars ...string) bool {
		for _, v := range vars {
			if _, ok := os.LookupEnv(v); ok {
				return ok

    Client--Plain-->CZ
    CZ-."HBONE (target)".->Server
    CZ--"HBONE (actual)"-->SZ
    SZ--Plain-->Server
```

### Pooling

User connections can be multiplexed over shared HBONE connections.
This is done through standard HTTP/2 pooling.
The pooling is keyed off the `{source identity, destination identity, destination ip}`.

### Headers

Ztunnel uses the following well-known headers in HBONE:

   []

 []


* Inheritance Assembly

  Inheritance Assembly consists in filling current model empty fields with values taken from parent model.
  It is done in <<<InheritanceAssembler>>> ({{{./apidocs/org/apache/maven/model/inheritance/InheritanceAssembler.html}javadoc}}),
  with its <<<DefaultInheritanceAssembler>>> implementation

    assertSame(CharMatcher.any(), CharMatcher.none().negate());
    assertSame(CharMatcher.none(), CharMatcher.any().negate());

    assertSame(WHATEVER, CharMatcher.any().and(WHATEVER));
    assertSame(CharMatcher.any(), CharMatcher.any().or(WHATEVER));

    assertSame(CharMatcher.none(), CharMatcher.none().and(WHATEVER));
    assertSame(WHATEVER, CharMatcher.none().or(WHATEVER));
  }

// at least one member of verbs matches the request, (b) at least one
// member of apiGroups matches the request, (c) at least one member of
// resources matches the request, and (d) either (d1) the request does
// not specify a namespace (i.e., `Namespace==""`) and clusterScope is
// true or (d2) the request specifies a namespace and least one member
// of namespaces matches the request's namespace.

// at least one member of verbs matches the request, (b) at least one
// member of apiGroups matches the request, (c) at least one member of
// resources matches the request, and (d) either (d1) the request does
// not specify a namespace (i.e., `Namespace==""`) and clusterScope is
// true or (d2) the request specifies a namespace and least one member
// of namespaces matches the request's namespace.

02E5..02E9    ; valid                  ;      ; NV8    # 1.1  MODIFIER LETTER EXTRA-HIGH TONE BAR..MODIFIER LETTER EXTRA-LOW TONE BAR
02EA..02EB    ; valid                  ;      ; NV8    # 3.0  MODIFIER LETTER YIN DEPARTING TONE MARK..MODIFIER LETTER YANG DEPARTING TONE MARK
02EC          ; valid                                  # 3.0  MODIFIER LETTER VOICING

    @Override
    public Map<String, Collection<Integer>> create(Object... elements) {
      ImmutableMap.Builder<String, Integer> builder = ImmutableMap.builder();
      // assumes that each set is a singleton or less (as is done for the samples)
      for (Object elem : elements) {
        @SuppressWarnings("unchecked") // safe by generator contract
        Entry<String, Collection<Integer>> entry = (Entry<String, Collection<Integer>>) elem;