Summary
-------

Most Java Sound methods and constructors do not specify the behavior when passing null as one or more of the arguments.

Solution
--------

Java API's should, specify what can happens, if null is passed as argument.

Specification
-------------

    src/java.desktop/share/classes/javax/sound/midi/package-info.java

    + * Please note: In the {@code javax.sound.midi} APIs, a {@code null} reference
    + * parameter to methods is incorrect unless explicitly documented on the method
    + * as having a meaningful interpretation. Usage to the contrary is incorrect
    + * coding and may result in a run time exception either immediately or at some
    + * later time. {@code NullPointerException} is an example of typical and
    + * acceptable run time exception for such cases.
      *
      * @since 1.3
      */
     package javax.sound.midi;
.....

     src/java.desktop/share/classes/javax/sound/midi/spi/package-info.java

     + * Please note: In the {@code javax.sound.midi.spi} APIs, a {@code null}
     + * reference parameter to methods is incorrect unless explicitly documented on
     + * the method as having a meaningful interpretation. Usage to the contrary is
     + * incorrect coding and may result in a run time exception either immediately or
     + * at some later time. {@code NullPointerException} is an example of typical and
     + * acceptable run time exception for such cases.
       *
       * @since 1.3
       */
      package javax.sound.midi.spi;
....

      src/java.desktop/share/classes/javax/sound/sampled/package-info.java
      
      + * Please note: In the {@code javax.sound.sampled} APIs, a {@code null}
      + * reference parameter to methods is incorrect unless explicitly documented on
      + * the method as having a meaningful interpretation. Usage to the contrary is
      + * incorrect coding and may result in a run time exception either immediately or
      + * at some later time. {@code NullPointerException} is an example of typical and
      + * acceptable run time exception for such cases.
        *
        * @since 1.3
        */
       package javax.sound.sampled;
....

       src/java.desktop/share/classes/javax/sound/sampled/spi/package-info.java

       + * Please note: In the {@code javax.sound.sampled.spi} APIs, a {@code null}
       + * reference parameter to methods is incorrect unless explicitly documented on
       + * the method as having a meaningful interpretation. Usage to the contrary is
       + * incorrect coding and may result in a run time exception either immediately or
       + * at some later time. {@code NullPointerException} is an example of typical and
       + * acceptable run time exception for such cases.
         *
         * @since 1.3
         */
        package javax.sound.sampled.spi;