```java
import org.codelibs.core.convert.*;

// Safe type conversions with null handling
Integer value = IntegerConversionUtil.toInteger("123");        // Returns 123
Integer nullValue = IntegerConversionUtil.toInteger(null);     // Returns null
Boolean flag = BooleanConversionUtil.toBoolean("true");        // Returns true
Date date = DateConversionUtil.toDate("2023-12-25", "yyyy-MM-dd");

// Primitive conversions with default values

        }
    }

    public void test_findOnMainSchema_alwaysReturnsNull() {
        // Since the implementation always returns null (no DBFlute classification used),
        // test that it consistently returns null for any input
        assertNull(invokeMethod(provider, "findOnMainSchema", "TestClassification"));
        assertNull(invokeMethod(provider, "findOnMainSchema", ""));

        assertEquals("login failed", ex.getMessage());
        verify(tree).connectLogon(context);
    }

    @Test
    @DisplayName("send without params returns the stubbed response")
    void send_noParams_returnsResponse() throws Exception {
        // Arrange - generic return type respected
        when(tree.send(request)).thenReturn(response);

        // Act
        CommonServerMessageBlockResponse out = tree.send(request);

            return setupWireFormatReturn;
        }

        @Override
        protected int writeParametersWireFormat(byte[] dst, int dstIndex) {
            return parametersWireFormatReturn;
        }

        @Override
        protected int writeDataWireFormat(byte[] dst, int dstIndex) {
            return dataWireFormatReturn;
        }

        @Override

        AtomicInteger calls = new AtomicInteger();
        doAnswer(inv -> {
            int len = inv.getArgument(2);
            // First call returns len-1, second returns 1
            return calls.getAndIncrement() == 0 ? Math.max(1, len - 1) : 1;
        }).when(raf).read(any(byte[].class), anyInt(), anyInt());
        byte[] dst = new byte[4];

    }

    // Test append returns the same buffer instance
    public void test_append_returnsSameBuffer() {
        StringBuilder buf = new StringBuilder();
        Supplier<Object> supplier = () -> "test";

        StringBuilder result = monitorTarget.append(buf, "key", supplier);
        assertSame(buf, result);
    }

    // Test appendTimestamp returns the same buffer instance

   */
  E[] createArray(int length);

  /**
   * Returns the iteration ordering of elements, given the order in which they were added to the
   * container. This method may return the original list unchanged, the original list modified in
   * place, or a different list.
   *
   * <p>If the order is non-deterministic, as with {@link java.util.HashSet}, this method can return

    void testReadnMultipleCalls() throws IOException {
        when(mockInputStream.read(any(byte[].class), anyInt(), anyInt())).thenReturn(2) // First read returns 2 bytes
                .thenReturn(2) // Second read returns 2 bytes
                .thenReturn(1); // Third read returns 1 byte

        byte[] buffer = new byte[10];
        int bytesRead = SessionServicePacket.readn(mockInputStream, buffer, 0, 5);

            @Override
            public String getRemoteHostName() {
                return "test";
            }

            @Override
            public Address getRemoteAddress() {
                return mock(Address.class);
            }

            @Override
            public CIFSContext getContext() {
                return mock(CIFSContext.class);
            }

            @Override

        List<FileNotifyInformation> result = sut.watch();

        assertNull(result, "Cancelled watch should return null");
        verify(tree, times(1)).close();
    }

    // Error code 0x10C should clear the notify list and return it
    @Test
    @DisplayName("watch() clears notify list on error 0x10C and returns it")
    void watch_clearsList_onError10C() throws Exception {