# CLAUDE.md - AI Assistant Guide for CodeLibs CoreLib

Java 21 utility library. Maven build system, Apache License 2.0.

## Repository Structure

```
src/main/java/org/codelibs/core/
├── beans/       # Bean manipulation & introspection (converter/, factory/, impl/, util/)
├── collection/  # Enhanced collections (LruHashMap, CaseInsensitiveMap)
├── concurrent/  # Concurrency utilities
├── convert/     # Type conversion (*ConversionUtil)

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.exception;

import org.codelibs.core.message.MessageFormatter;

/**
 * A base exception class for CoreLib.
 *
 * @author higa
 * @author shinsuke
 */
public class ClRuntimeException extends RuntimeException {

    private static final long serialVersionUID = -4452607868694297329L;

    /**

	// 248 is long enough to trigger the longer-than-248 checks in
	// fixLongPath, but short enough not to make a path component
	// longer than 255, which is illegal on Windows. (which
	// doesn't really matter anyway, since this is purely a string
	// function we're testing, and it's not actually being used to
	// do a system call)
	veryLong := "l" + strings.Repeat("o", 248) + "ng"
	for _, test := range []struct{ in, want string }{
		// Short; unchanged:

   * call cancel() and be unable to cancel the delegate.
   * There are a number of ways to solve this, none of which are very pretty, and it is currently
   * believed to be a purely theoretical problem (since the other actions should supply sufficient
   * write-barriers).
   */

  @LazyInit private @Nullable ListenableFuture<V> delegateRef;
  @LazyInit private @Nullable ScheduledFuture<?> timer;

import java.lang.reflect.Field;

import org.junit.jupiter.api.Test;

/**
 * Unit tests for {@link SmbComTransactionResponse}.
 *
 * <p>The class is abstract, so a concrete stub implementation is
 * provided purely to expose protected state and to satisfy the abstract
 * method contract.  The tests focus on public API behaviour and the
 * parsing logic in {@code readParameterWordsWireFormat} and
 * {@code readBytesWireFormat}.
 */

					<groupId>xpp3</groupId>
					<artifactId>xpp3</artifactId>
				</exclusion>
			</exclusions>
		</dependency>
		<dependency>
			<groupId>org.codelibs</groupId>
			<artifactId>corelib</artifactId>
			<version>${corelib.version}</version>
		</dependency>
		<dependency>
			<groupId>org.codelibs</groupId>
			<artifactId>sai</artifactId>
			<version>${sai.version}</version>
		</dependency>

	"index.html":        {},
	minioReservedBucket: {},
}

// Fetch redirect location if urlPath satisfies certain
// criteria. Some special names are considered to be
// redirectable, this is purely internal function and
// serves only limited purpose on redirect-handler for
// browser requests.
func getRedirectLocation(r *http.Request) *xnet.URL {
	resource, err := getResource(r.URL.Path, r.Host, globalDomainNames)

	// we allocate buffers rounded up to the closest size class.
	c := len(b) + n // ensure enough space for n elements
	if c < 2*cap(b) {
		// The growth rate has historically always been 2x. In the future,
		// we could rely purely on append to determine the growth rate.
		c = 2 * cap(b)
	}
	b2 := append([]byte(nil), make([]byte, c)...)
	i := copy(b2, b)
	return b2[:i]
}

  private var client = OkHttpClient.Builder().build()

  private val handshakeCertificates = platform.localhostHandshakeCertificates()

  /**
   * Test that we can override in a Application Interceptor, purely by seeing that the chain reports
   * the override in a Network Interceptor.
   */
  @Test
  fun testOverrideInApplicationInterceptor(
    override: OverrideParam =
      burstValues(

		for _, v := range vectors {
			b.Run(v.label, func(b *testing.B) {
				b.ReportAllocs()
				for i := 0; i < b.N; i++ {
					// Writing to io.Discard because we want to
					// test purely the writer code and not bring in disk performance into this.
					tw := NewWriter(io.Discard)
					for _, file := range v.files {
						if err := tw.WriteHeader(file.hdr); err != nil {