*
     * @return the LogStream instance
     */
    public static LogStream getInstance() {
        if (inst == null) {
            setInstance(System.err);
        }
        return inst;
    }

        LogStream.setInstance(testStream);

        final LogStream[] instances = new LogStream[10];
        Thread[] threads = new Thread[10];

        for (int i = 0; i < threads.length; i++) {
            final int index = i;
            threads[i] = new Thread(() -> {
                instances[index] = LogStream.getInstance();
            });
            threads[i].start();
        }

            assertFalse(init.getContextFlag(flag));

            // Set to true
            init.setContextFlag(flag, true);
            assertTrue(init.getContextFlag(flag));
            assertEquals(flag, init.getContextFlags());

            // Set to false
            init.setContextFlag(flag, false);
            assertFalse(init.getContextFlag(flag));
            assertEquals(0, init.getContextFlags());
        }

    @Nested
    @DisplayName("Wire format method behaviour")
    class WireFormatMethods {
        @ParameterizedTest
        @ValueSource(ints = { 0, 1, -1, Integer.MAX_VALUE, Integer.MIN_VALUE })
        @DisplayName("writeSetupWireFormat returns 0 for all indices")
        void writeSetupWireFormatReturnsZero(int index) {
            TransWaitNamedPipeResponse resp = new TransWaitNamedPipeResponse();

            }
        }
        return buf;
    }

    private static int carry_add(byte[] data, byte[] out, int c, int i) {
        int ilen = data.length, olen = out.length;
        int msbit = ((ilen << 3) - 1 + ((ilen << 3) + 13) * (i / ilen) + (ilen - i % ilen << 3)) % (ilen << 3);
        int mshigh = msbit >>> 3, mslow = msbit & 7;
        int b = c + (out[i % olen] & 0xff)

        void nullArray() {
            assertEquals(0, response.writeParameterWordsWireFormat(null, 0));
        }

        @ParameterizedTest
        @ValueSource(ints = { 0, 5, 9 })
        @DisplayName("Returns 0 with valid array and various indices")
        void nonNullArray(int index) {
            byte[] arr = new byte[10];
            assertEquals(0, response.writeParameterWordsWireFormat(arr, index));
        }
    }

    @Nested

            int bytesRead = response.readBytesWireFormat(buffer, 0);

            assertEquals(16, bytesRead);
            assertEquals(-1, response.getCount()); // -1 as signed int represents max unsigned value
            assertEquals(-2, response.getRemaining());
        }

        private byte[] createValidWriteResponse(int count, int remaining) {
            byte[] buffer = new byte[64];

        void testEncodeVariousCipherCounts(int cipherCount) {
            int[] ciphers = new int[cipherCount];
            for (int i = 0; i < cipherCount; i++) {
                ciphers[i] = i + 1;
            }
            EncryptionNegotiateContext context = new EncryptionNegotiateContext(mockConfig, ciphers);

            int bytesWritten = context.encode(buffer, 0);

        verify(tree, times(1)).close();
    }

    @ParameterizedTest
    @ValueSource(ints = { TransPeekNamedPipeResponse.STATUS_DISCONNECTED, TransPeekNamedPipeResponse.STATUS_SERVER_END_CLOSED })
    @DisplayName("available() on SMB1 returns 0 and marks closed on disconnected statuses")
    void available_smb1_disconnectedStatuses(int status) throws Exception {

        // Test normal initialization
        converter.init();
        assertTrue(testConverter.isInitialized());
    }

    @Test
    public void testInitMultipleTimes() throws IOException {
        // Test multiple initialization calls
        converter.init();
        assertTrue(testConverter.isInitialized());

        // Call init again
        converter.init();
        assertTrue(testConverter.isInitialized());