Two methods AudioInputStream.read()/skip() are quite similar but have some small inconsistency which should be fixed

diff -r 4f90dceb5efb src/java.desktop/share/classes/javax/sound/sampled/AudioInputStream.java
--- a/src/java.desktop/share/classes/javax/sound/sampled/AudioInputStream.java Sun Feb 14 02:39:15 2016 +0300
+++ b/src/java.desktop/share/classes/javax/sound/sampled/AudioInputStream.java Tue Feb 16 18:58:12 2016 +0300
@@ -249,13 +249,14 @@
      */
     @Override
     public int read(byte[] b, int off, int len) throws IOException {
+ // make sure we don't read fractions of a frame.
+ final int reminder = len % frameSize;
+ if (reminder != 0) {
+ len -= reminder;
+ }
 
- // make sure we don't read fractions of a frame.
- if( (len%frameSize) != 0 ) {
- len -= (len%frameSize);
- if (len == 0) {
- return 0;
- }
+ if (len <= 0) {
+ return 0;
         }
 
         if( frameLength != AudioSystem.NOT_SPECIFIED ) {
@@ -312,6 +313,10 @@
     /**
      * Skips over and discards a specified number of bytes from this audio input
      * stream.
+ * <p>
+ * This method will always skip an integral number of frames. If {@code n}
+ * does not specify an integral number of frames, a maximum of
+ * {@code n - (n * % frameSize)} bytes will be skipped.
      *
      * @param n the requested number of bytes to be skipped
      * @return the actual number of bytes skipped
@@ -321,16 +326,16 @@
      */
     @Override
     public long skip(long n) throws IOException {
- if (n <= 0) {
- return 0;
- }
-
         // make sure not to skip fractional frames
         final long reminder = n % frameSize;
         if (reminder != 0) {
             n -= reminder;
         }
 
+ if (n <= 0) {
+ return 0;
+ }
+
         if (frameLength != AudioSystem.NOT_SPECIFIED) {
             // don't skip more than our set length in frames.
             if ((n / frameSize) > (frameLength - framePos)) {