case xhttp.AmzAccessKeyID:
			accessKey = keyval[1]
		case xhttp.AmzSignatureV2:
			gotSignature = keyval[1]
		case xhttp.Expires:
			expires = keyval[1]
		default:
			filteredQueries = append(filteredQueries, query)
		}
	}

	// Invalid values returns error.
	if accessKey == "" || gotSignature == "" || expires == "" {
		return ErrInvalidQueryParams
	}

	regionBytes := sumHMAC(date, []byte(region))
	service := sumHMAC(regionBytes, []byte(stype))
	signingKey := sumHMAC(service, []byte("aws4_request"))
	return signingKey
}

// getSignature final signature in hexadecimal form.
func getSignature(signingKey []byte, stringToSign string) string {
	return hex.EncodeToString(sumHMAC(signingKey, []byte(stringToSign)))
}

// Check to see if Policy is signed correctly.

    private
    fun hasAttribute(ctMember: CtMember, predicate: AttributePredicate): Boolean =
        queryKotlinMetadata(ctMember.declaringClass) { metadata ->
            metadata.hasAttribute(memberTypeFor(ctMember), ctMember.jvmSignature, predicate)
        }

    private
    fun queryKotlinMetadata(ctClass: CtClass, query: (KotlinClassMetadata) -> Boolean): Boolean =
        ctClass.metadata
            ?.let { KotlinClassMetadata.readStrict(it) }

                    isGCMCipher() ? encryptWithGCM(message, nonce, associatedData) : encryptWithCCM(message, nonce, associatedData);

            // Set authentication tag in transform header
            transformHeader.setSignature(encResult.authTag);

            // Build final encrypted message
            final byte[] result = new byte[Smb2TransformHeader.TRANSFORM_HEADER_SIZE + encResult.ciphertext.length];

     */
    public NoSuchMethodRuntimeException(final Class<?> targetClass, final String methodName, final Class<?>[] argTypes,
            final Throwable cause) {
        super("ECL0057", asArray(targetClass.getName(), MethodUtil.getSignature(methodName, argTypes)), cause);
        this.targetClass = targetClass;
        this.methodName = methodName;
        this.argTypes = argTypes;
    }

    /**
     * Returns the target class.
     *

        }

        @Override
        MethodVisitor visitMethod(int access, String name, String methodDescriptor, String signature, String[] exceptions) {
            if (behaviorName == name && methodDescriptor == behavior.getSignature()) {
                return new MethodVisitor(AsmConstants.ASM_LEVEL) {

                    @Override
                    AnnotationVisitor visitAnnotation(String descriptor, boolean visible) {

     */
    public MethodNotFoundRuntimeException(final Class<?> targetClass, final String methodName, final Class<?>[] methodArgClasses) {
        super("ECL0049", asArray(targetClass.getName(), MethodUtil.getSignature(methodName, methodArgClasses)));
        this.targetClass = targetClass;
        this.methodName = methodName;
        this.methodArgClasses = methodArgClasses;
    }

    /**

    "sun.security.ssl;resolution:=optional,*",
  "Automatic-Module-Name: okhttp3",
  "Bundle-SymbolicName: com.squareup.okhttp3",
)

val androidSignature by configurations.getting
val jvmSignature by configurations.getting
val checkstyleConfig by configurations.getting

// Animal Sniffer confirms we generally don't use APIs not on Java 8.
configure<AnimalSnifferExtension> {

     * @param argTypes
     *            The argument types
     * @return The string representation of the method signature
     */
    public static String getSignature(final String methodName, final Class<?>... argTypes) {
        assertArgumentNotEmpty("methodName", methodName);

        final StringBuilder buf = new StringBuilder(100);
        buf.append(methodName).append("(");

		emptySHA256 + "\n" +
		hashedChunk

	// Get hmac signing key.
	signingKey := getSigningKey(cr.cred.SecretKey, cr.seedDate, cr.region, serviceS3)

	// Calculate signature.
	newSignature := getSignature(signingKey, stringToSign)

	return newSignature
}

// getTrailerChunkSignature - get trailer chunk signature.
func (cr *s3ChunkedReader) getTrailerChunkSignature() string {