Add doc and end of line

Makefile

@@ -439,7 +439,7 @@ ROCKSDBJNILIB = ./java/librocksdbjni.jnilib
 JAVA_INCLUDE = -I/System/Library/Frameworks/JavaVM.framework/Headers/
 endif
 
-rocksdbjava: clean
+rocksdbjava:
 	OPT="-fPIC -DNDEBUG -O2" $(MAKE) $(LIBRARY) -j32
 	cd java;$(MAKE) java;
 	rm -f $(ROCKSDBJNILIB)

java/Makefile

@@ -29,6 +29,7 @@ test: java
 	java -ea -Djava.library.path=.:../ -cp "$(ROCKSDB_JAR):.:./*" org.rocksdb.test.BackupableDBTest
 	java -ea -Djava.library.path=.:../ -cp "$(ROCKSDB_JAR):.:./*" org.rocksdb.test.OptionsTest
 	java -ea -Djava.library.path=.:../ -cp "$(ROCKSDB_JAR):.:./*" org.rocksdb.test.ReadOptionsTest
+	java -ea -Djava.library.path=.:../ -cp "$(ROCKSDB_JAR):.:./*" org.rocksdb.test.StatisticsCollectorTest
 
 db_bench: java
 	javac org/rocksdb/benchmark/*.java

java/org/rocksdb/RocksDB.java

@@ -93,10 +93,7 @@ public class RocksDB extends RocksObject {
     // This allows to use the rocksjni default Options instead of
     // the c++ one.
     Options options = new Options();
-    db.open(options.nativeHandle_, options.cacheSize_, path);
-    db.transferCppRawPointersOwnershipFrom(options);
-    options.dispose();
-    return db;
+    return open(options, path);
   }
 
   /**