Ran into a memory leak when trying to pass an array of data from JAVA to MATLAB via putVariable.

Hello.

I am trying to do MATLAB calculations via JAVA using MatlabEngine

But I ran into a memory leak when trying to transfer an array of data from JAVA to MATLAB via putVariable.

The process occupies all available memory and swap and I don't understand where to dig...

JAVA code example

public class MemoryLeaks {
@Test
public void test() throws ExecutionException, InterruptedException {
String[] options = {"-nojvm"};
for (int a = 0; a < 1000; a++) {
    MatlabEngine eng = MatlabEngine.startMatlab(options);
    for (int i = 0; i < 100; i++) {
        double[][] data = new double[600000][2];
        eng.putVariable("data", (Object)data);
        //                eng.eval("[h,pValue,stat,cValue,mles] = jcitest(data)", NULL_WRITER, NULL_WRITER);
        }
        eng.quit();
        Thread.sleep(5000L);
        System.out.println("cycle "+a);
        }
        }
        }

jcmd $pid VM.native_memory detail.diff

....

- Internal (reserved=32808312KB +5151601KB, committed=32808312KB +5151601KB)

(malloc=32808276KB +5151601KB #31150 +4405)

(mmap: reserved=36KB, committed=36KB)

- Other (reserved=10KB, committed=10KB)

(malloc=10KB #2)

- Symbol (reserved=1519KB, committed=1519KB)

(malloc=1159KB #16352)

(arena=360KB #1)

- Native Memory Tracking (reserved=1275KB +204KB, committed=1275KB +204KB)

(malloc=258KB +108KB #3843 +1716)

(tracking overhead=1018KB +96KB)

....

[0x00007fd9f8c49382] jni_GetDoubleArrayElements+0x162

[0x00007fd73acb871f]

[0x00007fd73acba487]

[0x00007fd73acba968]

(malloc=32807813KB type=Internal +5151563KB #6999 +1099)

....

while true

do

cat /proc/175836/smaps | grep -i 'Pss:' | awk '{Total+=$2} END {print "PSS: " Total}'

sleep 5

done

PSS: 27240963

PSS: 27775401

PSS: 28225477

PSS: 28267110

tried different versions of java, different scopes of variables, closing and not closing the MATLAB process, clearing memory in MATLAB via "clear all"

thx.