g++ -g -Wall -Werror -Wsign-compare -Wshadow -I. -I./include -std=c++11  -DROCKSDB_PLATFORM_POSIX  -DOS_MACOSX -DSNAPPY -DGFLAGS=google -DZLIB -DBZIP2 -Wshorten-64-to-32   -DHAVE_JEMALLOC -O2 -fno-omit-frame-pointer -momit-leaf-frame-pointer -Woverloaded-virtual -Wnon-virtual-dtor -I./java/. -I/Library/Java/JavaVirtualMachines/jdk7-latest/Contents/Home/include -I /Library/Java/JavaVirtualMachines/jdk7-latest/Contents/Home/include/darwin -shared -fPIC -o ./java/librocksdbjni-osx.jnilib ./java/rocksjni/*.cc db/builder.o db/c.o db/column_family.o db/compaction.o db/compaction_job.o db/compaction_picker.o db/db_filesnapshot.o db/db_impl.o db/db_impl_debug.o db/db_impl_readonly.o db/db_iter.o db/dbformat.o db/file_indexer.o db/filename.o db/flush_job.o db/flush_scheduler.o db/forward_iterator.o db/internal_stats.o db/log_reader.o db/log_writer.o db/memtable.o db/memtable_list.o db/merge_helper.o db/merge_operator.o db/repair.o db/table_cache.o db/table_properties_collector.o db/transaction_log_impl.o db/version_builder.o db/version_edit.o db/version_set.o db/wal_manager.o db/write_batch.o db/write_controller.o db/write_thread.o table/adaptive_table_factory.o table/block.o table/block_based_filter_block.o table/block_based_table_builder.o table/block_based_table_factory.o table/block_based_table_reader.o table/block_builder.o table/block_hash_index.o table/block_prefix_index.o table/bloom_block.o table/cuckoo_table_builder.o table/cuckoo_table_factory.o table/cuckoo_table_reader.o table/flush_block_policy.o table/format.o table/full_filter_block.o table/get_context.o table/iterator.o table/merger.o table/meta_blocks.o table/plain_table_builder.o table/plain_table_factory.o table/plain_table_index.o table/plain_table_key_coding.o table/plain_table_reader.o table/table_properties.o table/two_level_iterator.o util/arena.o util/auto_roll_logger.o util/blob_store.o util/bloom.o util/build_version.o util/cache.o util/coding.o util/comparator.o util/crc32c.o util/db_info_dumper.o util/dynamic_bloom.o util/env.o util/env_hdfs.o util/env_posix.o util/file_util.o util/filter_policy.o util/hash.o util/hash_cuckoo_rep.o util/hash_linklist_rep.o util/hash_skiplist_rep.o util/histogram.o util/iostats_context.o util/ldb_cmd.o util/ldb_tool.o util/log_buffer.o util/logging.o util/murmurhash.o util/mutable_cf_options.o util/options.o util/options_builder.o util/options_helper.o util/perf_context.o util/rate_limiter.o util/skiplistrep.o util/slice.o util/sst_dump_tool.o util/statistics.o util/status.o util/string_util.o util/sync_point.o util/thread_local.o util/thread_status_impl.o util/thread_status_impl_debug.o util/vectorrep.o util/xxhash.o utilities/backupable/backupable_db.o utilities/checkpoint/checkpoint.o utilities/compacted_db/compacted_db_impl.o utilities/document/document_db.o utilities/document/json_document.o utilities/geodb/geodb_impl.o utilities/leveldb_options/leveldb_options.o utilities/merge_operators/put.o utilities/merge_operators/string_append/stringappend.o utilities/merge_operators/string_append/stringappend2.o utilities/merge_operators/uint64add.o utilities/redis/redis_lists.o utilities/spatialdb/spatial_db.o utilities/ttl/db_ttl_impl.o utilities/write_batch_with_index/write_batch_with_index.o port/port_posix.o port/stack_trace.o -lsnappy -lz -lbz2
./java/rocksjni/backupablejni.cc:115:37: error: implicit conversion loses integer precision: 'const std::vector<rocksdb::BackupID>::size_type'
      (aka 'const unsigned long') to 'jsize' (aka 'int') [-Werror,-Wshorten-64-to-32]
  ret_backup_ids = env->NewIntArray(kIdSize);
                   ~~~              ^~~~~~~
./java/rocksjni/backupablejni.cc:116:45: error: implicit conversion loses integer precision: 'const std::vector<rocksdb::BackupID>::size_type'
      (aka 'const unsigned long') to 'jsize' (aka 'int') [-Werror,-Wshorten-64-to-32]
  env->SetIntArrayRegion(ret_backup_ids, 0, kIdSize, int_backup_ids);
  ~~~                                       ^~~~~~~
2 errors generated.
./java/rocksjni/restorejni.cc:169:37: error: implicit conversion loses integer precision: 'const std::vector<rocksdb::BackupID>::size_type'
      (aka 'const unsigned long') to 'jsize' (aka 'int') [-Werror,-Wshorten-64-to-32]
  ret_backup_ids = env->NewIntArray(kIdSize);
                   ~~~              ^~~~~~~
./java/rocksjni/restorejni.cc:170:45: error: implicit conversion loses integer precision: 'const std::vector<rocksdb::BackupID>::size_type'
      (aka 'const unsigned long') to 'jsize' (aka 'int') [-Werror,-Wshorten-64-to-32]
  env->SetIntArrayRegion(ret_backup_ids, 0, kIdSize, int_backup_ids);
  ~~~                                       ^~~~~~~
2 errors generated.
make: *** [rocksdbjava] Error 1