*
 * This class provides methods to convert binary data to
 * hexadecimal string representation for debugging purposes.
 */

public class Hexdump {

    /**
     * Default constructor.
     */
    public Hexdump() {
        // Utility class - no instance variables to initialize
    }

    private static final String NL = System.lineSeparator();

package jcifs.util;

/**
 * Utility class for hexadecimal dumping of binary data.
 * This class provides methods for converting binary data to readable hex format.
 */

public class Hexdump {

    /**
     * Default constructor.
     */
    public Hexdump() {
        // Utility class - no instance variables to initialize
    }

    /**
     * Array of hexadecimal digit characters used for converting binary data to hex representation.

        assertEquals("00000000", Hexdump.toHexString(0, 8));
        assertEquals("000000FF", Hexdump.toHexString(255, 8));
        assertEquals("00001000", Hexdump.toHexString(4096, 8));
        assertEquals("FFFFFFFF", Hexdump.toHexString(-1, 8));

        // Test different sizes
        assertEquals("00", Hexdump.toHexString(0, 2));
        assertEquals("FF", Hexdump.toHexString(255, 2));

        if (serverChallenge == null) {
            ret.append("null");
        } else {
            ret.append(Hexdump.toHexString(serverChallenge, 0, serverChallenge.length * 2));
        }
        ret.append(",signingKey=");
        if (signingKey == null) {
            ret.append("null");
        } else {
            ret.append(Hexdump.toHexString(signingKey, 0, signingKey.length * 2));
        }
        ret.append("]");

            log.debug("Sign key is " + Hexdump.toHexString(this.signKey));
            log.debug("Verify key is " + Hexdump.toHexString(this.verifyKey));
        }

        this.sealClientKey = deriveKey(mk, C2S_SEAL_CONSTANT);
        this.sealClientHandle = Crypto.getArcfour(this.sealClientKey);
        if (log.isDebugEnabled()) {
            log.debug("Seal key is " + Hexdump.toHexString(this.sealClientKey));
        }

        assertEquals("000000FF", Hexdump.toHexString(255, 8));
        assertEquals("00FF", Hexdump.toHexString(255, 4));
        assertEquals("FF", Hexdump.toHexString(255, 2));

        // Test larger values
        assertEquals("00001234", Hexdump.toHexString(0x1234, 8));
        assertEquals("1234", Hexdump.toHexString(0x1234, 4));
        assertEquals("34", Hexdump.toHexString(0x1234, 2));

        return ("SmbComOpenAndX[" + super.toString() + ",flags=0x" + Hexdump.toHexString(flags, 2) + ",desiredAccess=0x"
                + Hexdump.toHexString(desiredAccess, 4) + ",searchAttributes=0x" + Hexdump.toHexString(searchAttributes, 4)
                + ",fileAttributes=0x" + Hexdump.toHexString(fileAttributes, 4) + ",creationTime=" + new Date(creationTime)

                + Hexdump.toHexString(this.desiredAccess, 4) + ",searchAttributes=0x" + Hexdump.toHexString(this.searchAttributes, 4)
                + ",fileAttributes=0x" + Hexdump.toHexString(this.fileAttributes, 4) + ",creationTime=" + new Date(this.creationTime)

    @Override
    public String toString() {
        return ("Trans2FindFirst2[" + super.toString() + ",searchAttributes=0x" + Hexdump.toHexString(this.searchAttributes, 2)
                + ",searchCount=" + this.maxItems + ",flags=0x" + Hexdump.toHexString(this.tflags, 2) + ",informationLevel=0x"
                + Hexdump.toHexString(this.informationLevel, 3) + ",searchStorageType=" + this.searchStorageType + ",filename=" + this.path
                + "]");

        String str = notifyChange.toString();
        assertTrue(str.contains("NtTransNotifyChange"));
        assertTrue(str.contains("fid=0x" + Hexdump.toHexString(fid, 4)));
        assertTrue(str.contains("filter=0x" + Hexdump.toHexString(completionFilter, 4)));
        assertTrue(str.contains("watchTree=" + watchTree));
    }

    @Test
    @DisplayName("Test constructor with watchTree enabled")