Flink state

Summary:
This is to address the issue reported in
    https://github.com/facebook/rocksdb/issues/1988
The fix is simple. A typo.
Closes https://github.com/facebook/rocksdb/pull/2267

Differential Revision: D5037149

Pulled By: siying

fbshipit-source-id: 1bb585c7a753ef77c81c4b92deafbed8e21fe8ff

java/rocksjni/rocksjni.cc

@@ -1373,7 +1373,7 @@ bool rocksdb_merge_helper(JNIEnv* env, rocksdb::DB* db,
   }
   rocksdb::Slice key_slice(reinterpret_cast<char*>(key), jkey_len);
 
-  jbyte* value = new jbyte[jkey_len];
+  jbyte* value = new jbyte[jval_len];
   env->GetByteArrayRegion(jval, jval_off, jval_len, value);
   if(env->ExceptionCheck()) {
     // exception thrown: ArrayIndexOutOfBoundsException
@@ -2199,4 +2199,3 @@ void Java_org_rocksdb_RocksDB_addFile__JJ_3Ljava_lang_String_2IZ(
     rocksdb::RocksDBExceptionJni::ThrowNew(env, s);
   }
 }
-