Develop clang format java (#1653)

java/src/hdf/hdf5lib/callbacks/H5D_append_t.java

@@ -17,7 +17,8 @@ package hdf.hdf5lib.callbacks;
  *
  */
 public interface H5D_append_t {
-/**    public ArrayList iterdata = new ArrayList();
-  * Any derived interfaces must define the single public variable as above.
-  */
+    /**
+     * public ArrayList iterdata = new ArrayList();
+     * Any derived interfaces must define the single public variable as above.
+     */
 }