import com.google.common.annotations.Beta;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;

/**
 * An {@link OutputStream} that maintains a hash of the data written to it.
 *
 * @author Zoe Piepmeier
 * @since 16.0
 */
@Beta
public final class HashingOutputStream extends FilterOutputStream {
  private final Hasher hasher;

  /**

        assertNotNull(deserialized);
        assertNull(deserialized.getMessage());
        assertNull(deserialized.getCause());
    }

    public void test_stackTrace() {
        // Test that stack trace is properly maintained
        DictionaryExpiredException exception = new DictionaryExpiredException();
        StackTraceElement[] stackTrace = exception.getStackTrace();

        assertNotNull(stackTrace);

 * repositories.</p>
 *
 * <p>There are several types of remote repositories:</p><ul>
 * <li><dfn>Central Repository</dfn>: The default remote repository used by Maven. It is a large, publicly accessible repository maintained by the Maven community at https://repo.maven.apache.org/maven2. Most common Java libraries and frameworks are hosted here.</li>

import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;

/**
 * An {@link InputStream} that maintains a hash of the data read from it.
 *
 * @author Qian Huang
 * @since 16.0
 */
@Beta
public final class HashingInputStream extends FilterInputStream {
  private final Hasher hasher;

  /**

 * session events and their originating operations in the application code. The trace structure
 * supports the following key features:
 *
 * <ul>
 *   <li>Maintains parent-child relationships between requests to track operation nesting</li>
 *   <li>Carries contextual data describing the current request or operation</li>

import com.google.common.annotations.Beta;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;

/**
 * An {@link OutputStream} that maintains a hash of the data written to it.
 *
 * @author Zoe Piepmeier
 * @since 16.0
 */
@Beta
public final class HashingOutputStream extends FilterOutputStream {
  private final Hasher hasher;

  /**

            notification.readBytesWireFormat(buffer, 0);

            // Verify state is maintained through multiple toString calls
            String firstToString = notification.toString();
            String secondToString = notification.toString();
            assertEquals(firstToString, secondToString);

            // Verify state is maintained after write operation
            notification.writeBytesWireFormat(new byte[64], 0);

 * This class handles URL conversion based on duplicate host rules, allowing multiple
 * hostnames or URLs to be treated as equivalent for crawling and indexing purposes.
 * It maintains a list of DuplicateHost rules and applies them to URLs.
 *
 */
public class DuplicateHostHelper {
    private static final Logger logger = LogManager.getLogger(DuplicateHostHelper.class);

        // The fact that we can create the instance verifies the serialVersionUID is defined
        assertNotNull(runtimeException);

        // Verify the exception maintains its state
        assertEquals(servletException, runtimeException.getCause());
    }

/**
 * Creates and manages crawler clients for web crawling operations.
 * This class handles the registration and loading of crawler client factories and their associated clients.
 * <p>
 * The class maintains a mapping between regular expressions and component names, and manages a list
 * of crawler client factories with a configurable maximum size.
 * </p>
 *
 */
public class CrawlerClientCreator {
    /**