import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.collect.testing.Helpers;
import com.google.common.testing.NullPointerTester;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import junit.framework.TestCase;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.collect.ImmutableMap;
import com.google.common.testing.NullPointerTester;
import com.google.common.testing.SerializableTester;
import java.util.HashSet;
import java.util.Map;
import java.util.Random;
import java.util.Set;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.collect.Table.Cell;
import com.google.common.testing.CollectorTester;
import com.google.common.testing.SerializableTester;
import java.util.stream.Collector;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**

import static java.nio.charset.StandardCharsets.US_ASCII;
import static java.nio.charset.StandardCharsets.UTF_8;
import static org.junit.Assert.assertThrows;

import com.google.common.collect.ImmutableList;
import com.google.common.testing.NullPointerTester;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;

        // Verify
        assertNotNull(factory);
        assertNotNull(factory.handerMap);
        assertTrue(factory.handerMap.isEmpty());
    }

    // Test implementation of CorsHandler for testing purposes
    private static class TestCorsHandler extends CorsHandler {
        private final String name;

        public TestCorsHandler(String name) {
            this.name = name;
        }

import com.google.common.annotations.J2ktIncompatible;
import com.google.common.collect.TestExceptions.SomeCheckedException;
import com.google.common.collect.TestExceptions.SomeUncheckedException;
import com.google.common.testing.GcFinalization;
import java.lang.ref.WeakReference;
import java.util.Iterator;
import java.util.NoSuchElementException;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;

import com.google.common.annotations.J2ktIncompatible;
import com.google.common.collect.TestExceptions.SomeCheckedException;
import com.google.common.collect.TestExceptions.SomeUncheckedException;
import com.google.common.testing.GcFinalization;
import java.lang.ref.WeakReference;
import java.util.Iterator;
import java.util.NoSuchElementException;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;

import static org.junit.Assert.assertThrows;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.testing.NullPointerTester;
import com.google.errorprone.annotations.FormatMethod;
import java.lang.Thread.UncaughtExceptionHandler;
import java.util.Locale;
import java.util.concurrent.ThreadFactory;
import junit.framework.TestCase;

import java.util.List;
import java.util.Map.Entry;
import java.util.stream.Stream;
import junit.framework.TestSuite;
import org.jspecify.annotations.NullUnmarked;

/**
 * A generator of {@code TestSuite} instances for testing {@code CharSource} implementations.
 * Generates tests of all methods on a {@code CharSource} given various inputs the source is
 * expected to contain.
 *
 * @author Colin Decker
 */

```bash
# Compile the source code
mvn compile

# Build JAR file
mvn package

# Clean and rebuild
mvn clean compile

# Install to local repository
mvn install
```

### Testing
```bash
# Run all tests (JUnit 4 based)
mvn test

# Run specific test class
mvn test -Dtest=SpecificTest

# Alternative test runner
mvn surefire:test
```

### Code Quality
```bash