if err != nil {
		return ErrMalformedExpires
	}

	// Check if the presigned URL has expired.
	if expiresInt < UTCNow().Unix() {
		return ErrExpiredPresignRequest
	}

	encodedResource, err = getResource(encodedResource, r.Host, globalDomainNames)
	if err != nil {
		return ErrInvalidRequest
	}

	expectedSignature := preSignatureV2(cred, r.Method, encodedResource, strings.Join(filteredQueries, "&"), r.Header, expires)

	}
}

func collectAPIStats(api string, f http.HandlerFunc) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		resource, err := getResource(r.URL.Path, r.Host, globalDomainNames)
		if err != nil {
			defer logger.AuditLog(r.Context(), w, r, mustGetClaimsFromToken(r))

			apiErr := errorCodes.ToAPIErr(ErrUnsupportedHostHeader)

CaseInsensitiveMap<String> configMap = new CaseInsensitiveMap<>();
```

### Resource Management
```java
import org.codelibs.core.io.*;

// Resource loading and management
URL resource = ResourceUtil.getResource("config.properties");
Properties props = PropertiesUtil.load(resource);

// File operations with proper resource handling
try (InputStream input = ResourceUtil.getResourceAsStream("data.txt")) {

// 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)
	if err != nil {
		return nil
	}
	bucket, _ := path2BucketObject(resource)
	_, redirect := redirectPrefixes[path.Clean(bucket)]
	if redirect || resource == slashSeparator {

        }

        @Override
        public java.util.Set<String> getResourcePaths(String path) {
            return null;
        }

        @Override
        public java.net.URL getResource(String path) {
            return null;
        }

        @Override
        public java.io.InputStream getResourceAsStream(String path) {
            return null;
        }

        @Override

        }

        @Override
        public java.util.Set<String> getResourcePaths(String path) {
            return null;
        }

        @Override
        public java.net.URL getResource(String path) {
            return null;
        }

        @Override
        public java.io.InputStream getResourceAsStream(String path) {
            return null;
        }

        @Override

        }

        @Override
        public java.util.Set<String> getResourcePaths(String path) {
            return null;
        }

        @Override
        public java.net.URL getResource(String path) {
            return null;
        }

        @Override
        public java.io.InputStream getResourceAsStream(String path) {
            return null;
        }

        @Override

// OR
// - end of a string
func hasSpaceBE(s string) bool {
	return strings.TrimSpace(s) != s
}

func request2BucketObjectName(r *http.Request) (bucketName, objectName string) {
	path, err := getResource(r.URL.Path, r.Host, globalDomainNames)
	if err != nil {
		logger.CriticalIf(GlobalContext, err)
	}

	return path2BucketObject(path)
}

// path2BucketObjectWithBasePath returns bucket and prefix, if any,

	if crypto.S3KMS.IsRequested(r.Header) { // SSE-KMS is not supported
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL)
		return
	}

	bucket := mux.Vars(r)["bucket"]
	resource, err := getResource(r.URL.Path, r.Host, globalDomainNames)
	if err != nil {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
		return
	}

	// Make sure that the URL does not contain object name.

// following test. Adding new code before this test or changing its
// position will cause the line number to change and the test to FAIL
// Tests getSource().
func TestGetSource(t *testing.T) {
	currentSource := func() string { return getSource(2) }
	gotSource := currentSource()
	// Hard coded line number, 34, in the "expectedSource" value
	expectedSource := "[namespace-lock_test.go:34:TestGetSource()]"