fixup! fixup! Refactor to use Maven for building and publishing Java packages

Author: adamretter

Makefile

@@ -1246,7 +1246,7 @@ unity_test: $(OBJ_DIR)/db/db_basic_test.o $(OBJ_DIR)/db/db_test_util.o $(TEST_OB
 rocksdb.h rocksdb.cc: build_tools/amalgamate.py Makefile $(LIB_SOURCES) unity.cc
 	build_tools/amalgamate.py -I. -i./include unity.cc -x include/rocksdb/c.h -H rocksdb.h -o rocksdb.cc
 
-clean: clean-ext-libraries-all clean-rocks clean-rocksjava
+clean: clean-ext-libraries-all clean-rocks jclean
 
 clean-not-downloaded: clean-ext-libraries-bin clean-rocks clean-not-downloaded-rocksjava
 
@@ -1258,7 +1258,7 @@ clean-rocks:
 	$(FIND) . -name "*.[oda]" -exec rm -f {} \;
 	$(FIND) . -type f \( -name "*.gcda" -o -name "*.gcno" \) -exec rm -f {} \;
 
-clean-rocksjava: clean-rocks
+clean-rocksjava: clean-rocks rocksdbjavageneratepom
 	rm -rf jl jls
 	cd java && $(MAKE) clean