javadoc fixed

src/main/java/ch/ethz/globis/phtree/PhTreeSolid.java

@@ -93,6 +93,8 @@ public PhTreeSolid(PhTree<T> tree) {
 	 * Note that the backing tree's dimensionality must be a multiple of 2.
 	 * 
 	 * @param tree the backing tree
+	 * @return A new range tree around 'tree' 
+	 * @param <T> value type
 	 */
 	public static <T> PhTreeSolid<T> wrap(PhTree<T> tree) {
 		return new PhTreeSolid<>(tree);

src/main/java/ch/ethz/globis/phtree/PhTreeSolidF.java

@@ -94,8 +94,10 @@ public PhTreeSolidF(PhTree<T> tree, PreProcessorRangeF pre) {
 	 * Note that the backing tree's dimensionality must be a multiple of 2.
 	 *
 	 * @param tree the backing tree
+	 * @return A new range tree around 'tree' 
+	 * @param <T> value type
 	 */
-	public static <T> PhTreeSolidF wrap(PhTree<T> tree) {
+	public static <T> PhTreeSolidF<T> wrap(PhTree<T> tree) {
 		return new PhTreeSolidF<>(tree, new PreProcessorRangeF.IEEE(tree.getDim()));
 	}