// Access common Throwable methods to exercise paths without touching the cause
        assertNotNull(ex.toString(), "toString should be non-null");
        ex.getMessage(); // don't assert content to avoid implementation assumptions

        // Verify no interactions happened with the mocked cause during construction/access
        verifyNoInteractions(mockCause);
    }

    @Test

        // Problems here with iSeries returning ASCII even though useUnicode = true
        // Fortunately we don't really need nativeFileSystem for anything.
        // However, we'll try to read it safely for compatibility
        if (this.byteCount > bufferIndex - start) {
            try {
                // Attempt to read nativeFileSystem, but don't fail if there are issues
                final int fsLen = this.byteCount - (bufferIndex - start);

/**
 * Runtime exception wrapper for ServletException.
 *
 * This exception is used to wrap checked ServletExceptions and convert them
 * into unchecked RuntimeExceptions, allowing them to be thrown from methods
 * that don't declare ServletException in their throws clause.
 */
public class ServletRuntimeException extends RuntimeException {

    /** Serial version UID for serialization compatibility. */

    void testMethodsWithNegativeIndices() {
        // Arrange
        byte[] buffer = new byte[100];
        int negativeIndex = -1;

        // Act & Assert
        // These methods don't validate indices, so they return 0
        assertEquals(0, response.writeSetupWireFormat(buffer, negativeIndex));
        assertEquals(0, response.writeParametersWireFormat(buffer, negativeIndex));

                // create it if necessary
                openFunction = OPEN_FN_TRUNC | OPEN_FN_CREATE;
            } else {
                openFunction = OPEN_FN_TRUNC;
            }
        } else // don't truncate the file
        if ((flags & SmbFile.O_CREAT) == SmbFile.O_CREAT) {
            // create it if necessary
            if ((flags & SmbFile.O_EXCL) == SmbFile.O_EXCL) {
                // fail if already exists

    }

    @Test
    public void testRdmaAutoProvider() throws CIFSException {
        Properties props = new Properties();
        props.setProperty("jcifs.smb.client.useRDMA", "true");
        // Don't set provider, should default to auto

        PropertyConfiguration config = new PropertyConfiguration(props);

        assertTrue(config.isUseRDMA(), "RDMA should be enabled");

package jcifs.internal.smb1.com;

import jcifs.Configuration;
import jcifs.internal.smb1.ServerMessageBlock;

/**
 * SMB1 blank response message.
 *
 * This is a generic response message for SMB commands that don't
 * return specific data in their response.
 */
public class SmbComBlankResponse extends ServerMessageBlock {

    /**
     * Creates a new blank SMB1 response.
     *
     * @param config the CIFS configuration

    /**
     * Check if this handle has expired
     * @return true if expired
     */
    public boolean isExpired() {
        if (type == HandleType.PERSISTENT) {
            return false; // Persistent handles don't expire
        }
        long elapsed = System.currentTimeMillis() - lastAccessTime;
        return elapsed > timeout;
    }

    /**
     * Update the last access time
     */

        final int len = super.encode(dst, dstIndex);
        final int exp = size();
        final int actual = getLength();
        if (exp != actual) {
            // Log the size mismatch for debugging but don't throw exception
            // This can occur due to padding alignment differences between size8() and pad8()
            if (log.isDebugEnabled()) {

         * as a special case (which it is).
         */
        if (errcode == 0) {
            return "NT_STATUS_SUCCESS";
        }
        if ((errcode & 0xC0000000) == 0xC0000000) {
            int min = 1; /* Don't include NT_STATUS_SUCCESS */
            int max = NT_STATUS_CODES.length - 1;

            while (max >= min) {
                final int mid = (min + max) / 2;

                if (errcode > NT_STATUS_CODES[mid]) {