Add unused to pmd

library/pmd-ruleset.xml

@@ -8,6 +8,7 @@
   </rule>
   <rule ref="rulesets/java/braces.xml" />
   <rule ref="rulesets/java/strings.xml" />
+  <rule ref="rulesets/java/unusedcode.xml" />
 
   <rule ref="rulesets/java/design.xml" >
     <exclude name="ConfusingTernary" />

library/src/main/java/com/bumptech/glide/RequestManager.java

@@ -85,7 +85,7 @@ public interface DefaultOptions {
          * @param requestBuilder The request builder being used to construct the load.
          * @param <T> The type of the model.
          */
-        public <T> void apply(T model, GenericRequestBuilder<T, ?, ?, ?> requestBuilder);
+        <T> void apply(T model, GenericRequestBuilder<T, ?, ?, ?> requestBuilder);
     }
 
     /**

library/src/main/java/com/bumptech/glide/load/engine/cache/DiskCache.java

@@ -11,7 +11,7 @@ public interface DiskCache {
     /**
      * An interface to actually write data to a key in the disk cache.
      */
-    public interface Writer {
+    interface Writer {
         /**
          * Writes data to the file and returns true if the write was successful and should be committed, and
          * false if the write should be aborted.

library/src/main/java/com/bumptech/glide/load/engine/cache/MemoryCache.java

@@ -10,7 +10,7 @@ public interface MemoryCache {
     /**
      * An interface that will be called whenever a bitmap is removed from the cache.
      */
-    public interface ResourceRemovedListener {
+    interface ResourceRemovedListener {
         void onResourceRemoved(Resource<?> removed);
     }