if err = rlk.Close(); err != os.ErrInvalid {
		t.Fatal(err)
	}

	_, err = newRLockedFile(nil)
	if err != os.ErrInvalid {
		t.Fatal("Unexpected error", err)
	}
}

// Tests lock and unlock semantics.
func TestLockAndUnlock(t *testing.T) {
	f, err := os.CreateTemp(t.TempDir(), "lock")
	if err != nil {
		t.Fatal(err)
	}
	f.Close()
	defer func() {
		err = os.Remove(f.Name())
		if err != nil {

 protected:
  explicit TracingOperation(AbstractOperationKind kind)
      : AbstractOperation(kind) {}

 public:
  // Sets the name of the operation: this is an optional identifier that is
  // not intended to carry semantics and preserved/propagated without
  // guarantees.
  virtual absl::Status SetOpName(const char* op_name) = 0;

  // For LLVM style RTTI.
  static bool classof(const AbstractOperation* ptr) {

          <description>
            <![CDATA[
            When children inherit from project's url, append path or not? Note: While the type
            of this field is {@code String} for technical reasons, the semantic type is actually
            {@code Boolean}
            <p><b>Default value is</b>: {@code true}</p>
            @since Maven 3.6.1
            ]]>
          </description>
          <type>String</type>

                "JAAS AppConfigurationEntry requires non-null options");
    }

    @Test
    @DisplayName("Repeated calls return distinct entries with equivalent semantics")
    void repeatedCalls_distinctEntriesSameSemantics() {
        // Arrange
        Map<String, Object> opts = new HashMap<>();
        opts.put("doNotPrompt", "true");

  @MapFeature.Require(absent = SUPPORTS_REMOVE)
  public void testClearUnsupported() {
    assertThrows(UnsupportedOperationException.class, () -> multimap().clear());
  }

  // Empty multimaps *do* have defined equals semantics.
  @SuppressWarnings("UndefinedEquals")
  private void assertCleared() {
    assertEquals(0, multimap().size());
    assertEmpty(multimap());
    assertEquals(multimap(), getSubjectGenerator().create());

        try {
            final NdrBuffer buf = encodeMessage(msg, out);
            final int off = sendFragments(msg, out, buf);

            // last fragment gets written (possibly) using transact/call semantics
            final int have = doSendReceiveFragment(out, off, msg.length, inB);

            if (have != 0) {
                final NdrBuffer hdrBuf = new NdrBuffer(inB, 0);
                setupReceivedFragment(hdrBuf);

     * <a href="https://maven.apache.org/resolver/configuration.html">Resolver Configuration</a> page option
     * {@code aether.artifactResolver.simpleLrmInterop} that provides similar semantics. This method should
     * be never invoked, and always returns {@code false}.
     */
    @Deprecated
    boolean isUseLegacyLocalRepository();

    /**
     * @since 3.1

    }

    /**
     * Converts a TermRangeQuery to a QueryBuilder with the given boost value.
     * Handles both search fields and default field queries with proper range semantics.
     *
     * @param context the query context
     * @param termRangeQuery the term range query to convert
     * @param boost the boost value to apply
     * @return the converted QueryBuilder
     */

    assertFalse(Ascii.equalsIgnoreCase("@", "`"));
    assertFalse(Ascii.equalsIgnoreCase("[", "{"));
  }

  @GwtIncompatible // String.toUpperCase() has browser semantics
  public void testEqualsIgnoreCaseUnicodeEquivalence() {
    // Note that it's possible in future that the JDK's idea to toUpperCase() or equalsIgnoreCase()

    assertFalse(Ascii.equalsIgnoreCase("@", "`"));
    assertFalse(Ascii.equalsIgnoreCase("[", "{"));
  }

  @GwtIncompatible // String.toUpperCase() has browser semantics
  public void testEqualsIgnoreCaseUnicodeEquivalence() {
    // Note that it's possible in future that the JDK's idea to toUpperCase() or equalsIgnoreCase()