import com.google.errorprone.annotations.Immutable;
import com.google.errorprone.annotations.InlineMe;

/**
 * A {@link Graph} whose elements and structural relationships will never change. Instances of this
 * class may be obtained with {@link #copyOf(Graph)}.
 *
 * <p>See the Guava User's Guide's <a
 * href="https://github.com/google/guava/wiki/GraphsExplained#immutable-implementations">discussion

    //                                                                           =========
    private static final RequestHeaderDbm _instance = new RequestHeaderDbm();

    private RequestHeaderDbm() {
    }

    public static RequestHeaderDbm getInstance() {
        return _instance;
    }

    // ===================================================================================

            // Both non-null - should be same instance
            assertSame(first, second, "Second getSubject should return same cached instance as first");
        } else {
            fail("Inconsistent behavior: first=" + first + ", second=" + second);
        }

        // Third call should return the same cached Subject instance
        Subject third = auth.getSubject();

import org.jspecify.annotations.NullUnmarked;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

/**
 * Abstract base class for testing implementations of {@link Graph} interface. Graph instances
 * created for testing should have Integer node and String edge objects.
 *
 * <p>Test cases that should be handled similarly in any graph implementation are included in this

interface NestedType {
    Property<String> getSomeProperty()
}
class Example {
    Property<NestedType> getNestedProperty()
}
```

This is unnecessary because users will have trouble creating instances of `NestedType` and merging different instances of `NestedType`. It's also more awkward for users to access the properties in the nested property.

        try {
            if (value instanceof String) {
                if ("Subject".equals(key)) {
                    data.putValue(key, getDecodeText(value.toString()));
                } else {
                    data.putValue(key, value.toString());
                }
            } else if (value instanceof String[]) {
                data.putValues(key, (String[]) value);

 * and DI container integration.
 *
 * <p>Thread Safety: This class is thread-safe. Each evaluate() call creates
 * a new GroovyShell instance to ensure thread isolation.</p>
 *
 * <p>Resource Management: GroovyClassLoader instances are properly managed
 * and cleaned up after script evaluation to prevent memory leaks.</p>
 */
public class GroovyEngine extends AbstractScriptEngine {

 * the License.
 */

package com.google.common.net;

import com.google.common.annotations.GwtCompatible;
import com.google.common.escape.Escaper;

/**
 * {@code Escaper} instances suitable for strings to be included in particular sections of URLs.
 *
 * <p>If the resulting URLs are inserted into an HTML or XML document, they will require additional

     */
    Iterable<FieldDesc> getFieldDescs();

    /**
     * Creates a new instance.
     *
     * @param <T>
     *            The type of the Bean class
     * @param args
     *            The arguments to pass to the constructor
     * @return A new instance
     */
    <T> T newInstance(Object... args);

    /**

        }
    }

    // Heterogeneous buffer sizes: cache should return exactly what was released
    @Test
    @DisplayName("Cache preserves and returns original buffer instances of varying sizes")
    void returnsExactReleasedInstances() {
        BufferCacheImpl impl = new BufferCacheImpl(3, 8);
        byte[] s1 = new byte[2];
        byte[] s2 = new byte[7];