Some @since tags throughout the Java Platform API have extra periods, spaces and letters:

 * @since 1.0
 * @since 1.1
 * @since 1.2
 * @since 1.2.2
 * @since 1.3
 * @since 1.3.
 * @since JDK
 * @since JDK 1.0.2
 * @since JDK 1.1
 * @since JDK 1.1.6
 * @since JDK 1.3
 * @since JDK1
 * @since JDK1. 0
 * @since JDK1.0
 * @since JDK1.0.
 * @since JDK1.0.2
 * @since JDK1.0nu.
 * @since JDK1.0t.
 * @since JDK1.1
 * @since JDK1.1.4
 * @since JDK1.1.6
 * @since JDK1.1s
 * @since JDK1.2
 * @since JDK1.3