javadoc fixes part 6 (ticket #1894)

core/java/src/net/i2p/data/SDSCache.java

@@ -25,7 +25,7 @@ import net.i2p.util.SystemVersion;
  *  Following is sample usage:
  *  <pre>
 
-    private static final SDSCache<Foo> _cache = new SDSCache(Foo.class, LENGTH, 1024);
+    private static final SDSCache&lt;Foo&gt; _cache = new SDSCache(Foo.class, LENGTH, 1024);
 
     public static Foo create(byte[] data) {
         return _cache.get(data);
@@ -113,7 +113,7 @@ public class SDSCache<V extends SimpleDataStructure> {
      *  @return the cached value if available, otherwise
      *          makes a new object and returns it
      *  @throws IllegalArgumentException if data is not the correct number of bytes
-     *  @throws NPE
+     *  @throws NullPointerException
      */
     public V get(byte[] data) {
         if (data == null)

core/java/src/net/i2p/data/i2cp/I2CPMessageImpl.java

@@ -28,7 +28,7 @@ public abstract class I2CPMessageImpl extends DataStructureImpl implements I2CPM
     }
 
     /**
-     * Validate the type and size of the message, and then read the message into the data structures.  <p />
+     * Validate the type and size of the message, and then read the message into the data structures.  <p>
      *
      * @throws IOException 
      */