Fix javadoc errors (#2160)

Author: Ali-RS

jme3-core/src/main/java/com/jme3/material/RenderState.java

@@ -1767,8 +1767,6 @@ public String toString() {
      * {@code Front} and {@code Front} becomes {@code Back}.
      * <p>{@code FrontAndBack} and {@code Off} are unaffected. This is important
      * for flipping the cull mode when normal vectors are found to be backward.
-     * @param cull
-     * @return flipped cull mode
      */
     public void flipFaceCull() {
         switch (cullMode) {

jme3-core/src/main/java/com/jme3/scene/instancing/InstancedGeometry.java

@@ -277,7 +277,7 @@ private void swap(int idx1, int idx2) {
     }
 
     /**
-     * @Deprecated use {@link #updateInstances(com.jme3.renderer.Camera)
+     * @deprecated use {@link #updateInstances(com.jme3.renderer.Camera)}
      */
     public void updateInstances() {
         updateInstances(cam);

jme3-core/src/main/java/com/jme3/util/res/ResourceLoader.java

@@ -68,7 +68,7 @@ public interface ResourceLoader {
      * 
      * @param path
      *            The resource name
-     * @return An enumeration of {@link java.net.URL <tt>URL</tt>} objects for
+     * @return An enumeration of {@link java.net.URL <code>URL</code>} objects for
      *         the resource. If no resources could be found, the enumeration
      *         will be empty.
      *

jme3-core/src/main/java/com/jme3/util/res/Resources.java

@@ -166,7 +166,7 @@ public static InputStream getResourceAsStream(String path, Class<?> parent) {
      *            The resource name
      *
      * 
-     * @return An enumeration of {@link java.net.URL <tt>URL</tt>} objects for
+     * @return An enumeration of {@link java.net.URL <code>URL</code>} objects for
      *         the resource. If no resources could be found, the enumeration
      *         will be empty.
      *

jme3-examples/src/main/java/jme3test/animation/TestIssue2076.java

@@ -59,7 +59,7 @@ public class TestIssue2076 extends SimpleApplication {
      *
      * @param args array of command-line arguments (not null)
      */
-    public static void main(String... argv) {
+    public static void main(String... args) {
         TestIssue2076 app = new TestIssue2076();
         app.start();
     }