}

            final int type = this.file.getType();
            int r, n;
            final int blockSize = type == SmbConstants.TYPE_FILESYSTEM ? this.readSizeFile : this.readSize;

            // Optimization: Use larger block sizes for better performance
            final int optimizedBlockSize = Math.min(blockSize * 2, 64 * 1024); // Cap at 64KB for memory efficiency

    private static final Pattern IP_PATTERN = Pattern.compile("\\b(?:[0-9]{1,3}\\.){3}[0-9]{1,3}\\b");

    // Object pools for performance optimization
    private final Queue<AuditEntry> auditEntryPool = new ConcurrentLinkedQueue<>();
    private final Queue<StringBuilder> stringBuilderPool = new ConcurrentLinkedQueue<>();

# Note: We intentionally don't add the flags we'd need to make Flags and Enums
# work. That's because the Proguard configuration required to make them work on
# optimized code would preclude lots of optimization, like converting enums
# into ints.

# Throwables uses internal APIs for lazy stack trace resolution
-dontnote sun.misc.SharedSecrets
-keep class sun.misc.SharedSecrets {
  *** getJavaLangAccess(...);
}
-dontnote sun.misc.JavaLangAccess

     */
    public Class<? extends RootAction> getActionClass() {
        return actionClass;
    }

    /**
     * Overrides fillInStackTrace to return null for performance optimization.
     * This prevents stack trace generation for this exception type.
     *
     * @return null to skip stack trace generation
     */
    @Override
    public synchronized Throwable fillInStackTrace() {

       * doesn't need access to the futures again, so we can just pass `null`.
       *
       * TODO(b/112550045): Allocating a single, cheaper listener is (I think) only an optimization.
       * If we make some other optimizations, this one will no longer be necessary. The optimization
       * could actually hurt in some cases, as it forces us to keep all inputs in memory until the
       * final input completes.
       */
      @RetainedLocalRef

 * This class analyzes the User-Agent header to determine which browser type is being used
 * and caches the result in the request attribute for performance optimization.
 *
 */
public class UserAgentHelper {

    /**
     * Default constructor for UserAgentHelper.
     */
    public UserAgentHelper() {
        // Default constructor
    }

      if (compare(dividend, divisor) < 0) {
        return 0; // dividend < divisor
      } else {
        return 1; // dividend >= divisor
      }
    }

    // Optimization - use signed division if dividend < 2^63
    if (dividend >= 0) {
      return dividend / divisor;
    }

    /*
     * Otherwise, approximate the quotient, check, and correct if necessary. Our approximation is

        final String sessionId = "session5";
        final List<String> emptyList = Collections.emptyList();

        // Should not throw exception when adding empty list
        // This validates the early return optimization
        try {
            urlFilterService.addIncludeUrlFilter(sessionId, emptyList);
        } catch (final Exception e) {
            fail("Should not throw exception for empty list: " + e.getMessage());
        }

      // Asterisk (*) is only permitted in the left-most domain name label and must be the only
      // character in that label
      return false
    }

    // Optimization: check whether hostname is too short to match the pattern. hostName must be at
    // least as long as the pattern because asterisk must match the whole left-most label and

     *
     * We could consider recognizing specific other collections as safe (like ImmutableCollection,
     * except ContiguousSet!) or as not worth this optimization (CopyOnWriteArrayList?).
     */
    if (parts instanceof List) {
      int size = ((List<?>) parts).size();
      if (size == 0) {
        return "";
      }