buffer.append(ALPHABET.charAt(block >>> 6 & 0x3f));
            buffer.append(ALPHABET.charAt(block & 0x3f));
        }
        if (remainder == 0) {
            return buffer.toString();
        }
        if (remainder == 1) {
            block = (bytes[i] & 0xff) << 4;
            buffer.append(ALPHABET.charAt(block >>> 6));
            buffer.append(ALPHABET.charAt(block & 0x3f));
            buffer.append("==");

     */
    @Override
    public int decode(final byte[] buffer, int bufferIndex, final int len) throws SMBProtocolDecodingException {
        final int start = bufferIndex;
        this.replaceIfExists = buffer[bufferIndex] != 0;
        bufferIndex += 8;
        bufferIndex += 8;

        final int nameLen = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

    public void testBufferCreation() throws UnsupportedEncodingException {
        byte[] dataBytes = { 1, 2, 3, 4 };
        String params = "test";
        byte[] buffer = createBuffer(10, dataBytes, params);

        // Verify buffer structure
        assertTrue(buffer.length >= 14, "Buffer should contain header, params and data");
    }

    @Test
    public void testByteOperations() {

        byte[] buffer = new byte[20];
        // Mock data for SmbInfoAllocation
        // idFileSystem (4 bytes, skipped)
        writeInt4(100, buffer, 4); // sectPerAlloc
        writeInt4(1000, buffer, 8); // alloc
        writeInt4(500, buffer, 12); // free
        writeInt2(512, buffer, 16); // bytesPerSect

        int bytesRead = response.readDataWireFormat(buffer, 0, buffer.length);

    @Test
    void testNegativeValueHandling() {
        byte[] buffer = new byte[8];

        // Test negative values in writeInt4
        SMBUtil.writeInt4(-1L, buffer, 0);
        assertEquals(-1, SMBUtil.readInt4(buffer, 0));

        // Test negative values in writeInt8
        SMBUtil.writeInt8(-1L, buffer, 0);
        assertEquals(-1L, SMBUtil.readInt8(buffer, 0));
    }

            e.creationTime = readTime(buffer, bufferIndex + 8);
            //      e.lastAccessTime = readTime( buffer, bufferIndex + 16 );
            e.lastWriteTime = readTime(buffer, bufferIndex + 24);
            //      e.changeTime = readTime( buffer, bufferIndex + 32 );
            e.endOfFile = readInt8(buffer, bufferIndex + 40);
            //      e.allocationSize = readInt8( buffer, bufferIndex + 48 );

import com.google.common.annotations.J2ktIncompatible;
import java.nio.Buffer;

/**
 * Wrappers around {@link Buffer} methods that are covariantly overridden in Java 9+. See
 * https://github.com/google/guava/issues/3990
 */
@J2ktIncompatible
@GwtIncompatible
final class Java8Compatibility {
  static void clear(Buffer b) {
    b.clear();
  }

  static void flip(Buffer b) {
    b.flip();
  }

import com.google.common.annotations.J2ktIncompatible;
import java.nio.Buffer;

/**
 * Wrappers around {@link Buffer} methods that are covariantly overridden in Java 9+. See
 * https://github.com/google/guava/issues/3990
 */
@J2ktIncompatible
@GwtIncompatible
final class Java8Compatibility {
  static void clear(Buffer b) {
    b.clear();
  }

  static void flip(Buffer b) {
    b.flip();
  }

     * readAndXWireFormat without reading the non-existent header.
     */

    @Override
    int decode(final byte[] buffer, int bufferIndex) {
        final int start = headerStart = bufferIndex;

        bufferIndex += readHeaderWireFormat(buffer, bufferIndex);
        bufferIndex += readAndXWireFormat(buffer, bufferIndex);

        length = bufferIndex - start;
        return length;
    }

            final int lLow = SMBUtil.readInt4(buffer, bufferIndex + 16);

            this.lengthInBytes = lHigh << 32 | lLow;
            return 20;
        }
        this.pid = SMBUtil.readInt2(buffer, bufferIndex);
        this.byteOffset = SMBUtil.readInt4(buffer, bufferIndex + 2);
        this.lengthInBytes = SMBUtil.readInt4(buffer, bufferIndex + 6);
        return 10;
    }