commons/http/src/main/java/org/ldp4j/http/MediaTypes.java
public static boolean isWildcardSubType(final MediaType mediaType) {
		requireNonNull(mediaType,MEDIA_TYPE_CANNOT_BE_NULL);
		return WILDCARD_TYPE.equals(mediaType.subType());
	}
public static boolean isWildcardSubType(final MediaType mediaType) {
		requireNonNull(mediaType,MEDIA_TYPE_CANNOT_BE_NULL);
		return WILDCARD_TYPE.equals(mediaType.subType());
	}
Indicates whether the {@linkplain MediaType#subType() subtype} is the
wildcard character <code>&#42;</code>.

@param mediaType
the instance to verify
@return whether the subtype of the specified instance is a wildcard
@throws NullPointerException
if the specified instance is null