final byte[] decoded = Base64Util.decode(encoded);
        assertEquals("Decoded should have same length", 2, decoded.length);
        assertEquals("First byte should match", twoBytes[0], decoded[0]);
        assertEquals("Second byte should match", twoBytes[1], decoded[1]);
    }

    /**
     * Test backward compatibility with standard Base64
     *
     * @throws Exception
     */

        assertTrue(ipcSigningEnforced, "Should delegate IPC signing enforced setting");
        assertTrue(firstExtendedSecurityCall, "First call should return true");
        assertFalse(secondExtendedSecurityCall, "Second call should return false");

        verify(mockDelegate).isEncryptionEnabled();
        verify(mockDelegate).isSigningEnabled();
        verify(mockDelegate).isSigningEnforced();

        // Schedule periodic health checks
        scheduler.scheduleAtFixedRate(this::performHealthCheck, 10, 10, TimeUnit.SECONDS);

        // Schedule interface discovery
        scheduler.scheduleAtFixedRate(this::discoverInterfaces, 0, 30, TimeUnit.SECONDS);
    }

    /**
     * Initialize multi-channel support
     *
     * @throws IOException if initialization fails
     */

        SMBUtil.writeInt4(10, buffer, notifyOffset + 8); // FileNameLength
        System.arraycopy("file1".getBytes("UnicodeLittleUnmarked"), 0, buffer, notifyOffset + 12, 10);

        // Second notification at offset 120 (80 + 40)
        notifyOffset = 120;
        SMBUtil.writeInt4(44, buffer, notifyOffset); // NextEntryOffset
        SMBUtil.writeInt4(2, buffer, notifyOffset + 4); // Action (REMOVED)

            if (exitValue != 0) {
                final StringBuilder out = new StringBuilder();
                if (processTimeout) {
                    out.append("Process is terminated due to ").append(timeout).append(" second exceeded.\n");
                }
                out.append("Exit Code: ").append(exitValue).append("\nOutput:\n").append(it.getOutput());
                throw new JobProcessingException(out.toString());
            }

        target.close();
        verify(fileHandle, times(1)).close();
        verify(fileHandle, never()).release();
        verify(tree, atLeastOnce()).release();

        // Re-prepare state for second branch: not open but handle set
        when(fileHandle.isValid()).thenReturn(false);
        // Need to reopen logic to set handle again
        // Reset open flag by reconstructing target

            response.readBytesWireFormat(buffer1, 0);
            assertEquals(1024, response.getCount());
            assertEquals(512, response.getRemaining());

            // Second read - should update values
            byte[] buffer2 = createValidWriteResponse(2048, 1024);
            response.readBytesWireFormat(buffer2, 0);
            assertEquals(2048, response.getCount());

        request.writeBytesWireFormat(buffer1, 0);

        // Update values
        request.setNotifyFlags(Smb2ChangeNotifyRequest.SMB2_WATCH_TREE);
        request.setCompletionFilter(0xFFF);

        // Second write
        byte[] buffer2 = new byte[512];
        request.writeBytesWireFormat(buffer2, 0);

        // Then
        assertEquals(0, SMBUtil.readInt2(buffer1, 2));

        }
        return c;
    }

    /**
     * Merges two characters, handling voiced and semi-voiced sound marks.
     * @param c1 The first character.
     * @param c2 The second character.
     * @return The merged character.
     */
    public static char mergeChar(final char c1, final char c2) {
        if (c2 == 'ﾞ') {
            if ("ｶｷｸｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾊﾋﾌﾍﾎ".indexOf(c1) >= 0) {

                        }
                    }
                } finally {
                    latch.countDown();
                }
            });
        }

        assertTrue(latch.await(10, TimeUnit.SECONDS), "Concurrent ops should complete");
        executor.shutdown();

        assertEquals(threadCount * operationsPerThread, successCount.get(), "All operations should succeed");
    }

    @Test