}

  // 'test' to demonstrate some potentially ambiguous overloads.  This 'test' is kind of strange,
  // but essentially each line will be a call to a Preconditions method that, but for a documented
  // change would be a compiler error.
  // See https://docs.oracle.com/javase/specs/jls/se25/html/jls-15.html#jls-15.12.2 for the spec on
  // how javac selects overloads
  @SuppressWarnings("null")
  public void overloadSelection() {

  }

  // 'test' to demonstrate some potentially ambiguous overloads.  This 'test' is kind of strange,
  // but essentially each line will be a call to a Preconditions method that, but for a documented
  // change would be a compiler error.
  // See https://docs.oracle.com/javase/specs/jls/se25/html/jls-15.html#jls-15.12.2 for the spec on
  // how javac selects overloads
  @SuppressWarnings("null")
  public void overloadSelection() {

// HardLimitReader returns a Reader that reads from r
// but returns an error if the source provides more data than allowed.
// This means the source *will* be overread unless EOF is returned prior.
// The underlying implementation is a *HardLimitedReader.
// This will ensure that at most n bytes are returned and EOF is reached.

	return &Arena{a: runtime_arena_newArena()}
}

// Free frees the arena (and all objects allocated from the arena) so that
// memory backing the arena can be reused fairly quickly without garbage
// collection overhead. Applications must not call any method on this
// arena after it has been freed.
func (a *Arena) Free() {
	runtime_arena_arena_Free(a.a)
	a.a = nil
}

        assertTrue(response instanceof ServerMessageBlock2);
    }

    @Test
    @DisplayName("Test OVERHEAD constant value")
    void testOverheadConstant() {
        assertEquals(72, Smb2QueryInfoResponse.OVERHEAD);
        assertEquals(Smb2Constants.SMB2_HEADER_LENGTH + 8, Smb2QueryInfoResponse.OVERHEAD);
    }

    @ParameterizedTest
    @CsvSource({ "1, 6", // SMB2_0_INFO_FILE, FILE_INTERNAL_INFO

   *
   * <p>Although all tasks are immediately executed in the thread that submitted the task, this
   * {@code ExecutorService} imposes a small locking overhead on each task submission in order to
   * implement shutdown and termination behavior.
   *
   * <p>Because of the nature of single-thread execution, the methods {@code scheduleAtFixedRate}

        super(config, SMB2_QUERY_DIRECTORY);
        this.outputBufferLength =
                Math.min(config.getMaximumBufferSize(), config.getListSize()) - Smb2QueryDirectoryResponse.OVERHEAD & ~0x7;
        this.fileId = fileId;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.smb2.RequestWithFileId#setFileId(byte[])
     */
    @Override

 */

package jcifs.smb1.smb1;

import jcifs.smb1.Config;

/**
 * Buffer cache implementation for SMB1 protocol operations.
 * Manages a pool of byte buffers to reduce garbage collection overhead.
 *
 * Performance optimizations:
 * - Uses ConcurrentLinkedQueue for O(1) operations
 * - Lock-free operations for better concurrency
 * - Proper buffer validation and limits
 */
public class BufferCache {

        System.out.printf("  Avg release time: %.2f ns%n", avgReleaseTimeNs);

        // Verify O(1) performance - should be reasonably fast (allowing for JVM overhead)
        assertTrue(avgAllocTimeNs < 10000, "Average allocation should be under 10000ns (O(1) performance)");
        assertTrue(avgReleaseTimeNs < 10000, "Average release should be under 10000ns (O(1) performance)");

        this.maxReadSize =
                Math.min(maxBufferSize - Smb2ReadResponse.OVERHEAD, Math.min(tc.getConfig().getReceiveBufferSize(), this.maxReadSize))
                        & ~0x7;
        this.maxWriteSize =
                Math.min(maxBufferSize - Smb2WriteRequest.OVERHEAD, Math.min(tc.getConfig().getSendBufferSize(), this.maxWriteSize)) & ~0x7;