diff --git a/java/rocksjni/options.cc b/java/rocksjni/options.cc
index 4385085d0..c66620da2 100644
--- a/java/rocksjni/options.cc
+++ b/java/rocksjni/options.cc
@@ -1104,7 +1104,8 @@ std::vector<rocksdb::CompressionType> rocksdb_compression_vector_helper(
  */
 jbyteArray rocksdb_compression_list_helper(JNIEnv* env,
     std::vector<rocksdb::CompressionType> compressionLevels) {
-  std::unique_ptr<jbyte[]> jbuf = std::make_unique<jbyte[]>(compressionLevels.size());
+  std::unique_ptr<jbyte[]> jbuf =
+      std::unique_ptr<jbyte[]>(new jbyte[compressionLevels.size()]);
   for (std::vector<rocksdb::CompressionType>::size_type i = 0;
         i != compressionLevels.size(); i++) {
       jbuf[i] = compressionLevels[i];
diff --git a/java/rocksjni/rocksjni.cc b/java/rocksjni/rocksjni.cc
index 6c064fd6d..4c6817863 100644
--- a/java/rocksjni/rocksjni.cc
+++ b/java/rocksjni/rocksjni.cc
@@ -115,7 +115,8 @@ jlongArray rocksdb_open_helper(JNIEnv* env, jlong jopt_handle,
   // check if open operation was successful
   if (s.ok()) {
     jsize resultsLen = 1 + len_cols; //db handle + column family handles
-    std::unique_ptr<jlong[]> results = std::make_unique<jlong[]>(resultsLen);
+    std::unique_ptr<jlong[]> results =
+        std::unique_ptr<jlong[]>(new jlong[resultsLen]);
     results[0] = reinterpret_cast<jlong>(db);
     for(int i = 1; i <= len_cols; i++) {
       results[i] = reinterpret_cast<jlong>(handles[i - 1]);
diff --git a/java/rocksjni/ttl.cc b/java/rocksjni/ttl.cc
index 8dc7280f0..6b39252f1 100644
--- a/java/rocksjni/ttl.cc
+++ b/java/rocksjni/ttl.cc
@@ -96,7 +96,8 @@ jlongArray
   // check if open operation was successful
   if (s.ok()) {
     jsize resultsLen = 1 + len_cols; //db handle + column family handles
-    std::unique_ptr<jlong[]> results = std::make_unique<jlong[]>(resultsLen);
+    std::unique_ptr<jlong[]> results =
+        std::unique_ptr<jlong[]>(new jlong[resultsLen]);
     results[0] = reinterpret_cast<jlong>(db);
     for(int i = 1; i <= len_cols; i++) {
       results[i] = reinterpret_cast<jlong>(handles[i - 1]);