Enable the memory leak test after allowing to copy with native memory being freed in the background.

src/test/java/net/openhft/chronicle/map/MemoryLeaksTest.java

@@ -99,7 +99,7 @@ public class MemoryLeaksTest {
         serializerCount.set(0);
     }
 
-    @Test(timeout = 60_000)
+    @Test(timeout = 10_000)
     public void testChronicleMapCollectedAndDirectMemoryReleased()
             throws IOException, InterruptedException {
         assertFalse(OS.isMacOSX());
@@ -110,6 +110,9 @@ public class MemoryLeaksTest {
         // This tests is successful always in Windows and successful in Linux and OS X when run
         // alone, rather than along all other Chronicle Map's tests.
 
+        System.gc();
+        Jvm.pause(100);
+
         long nativeMemoryUsedBeforeMap = nativeMemoryUsed();
         int serializersBeforeMap = serializerCount.get();
         // the purpose of the test is to find maps which are not closed properly.
@@ -124,16 +127,20 @@ public class MemoryLeaksTest {
 
         // Wait until Map is collected by GC
         // Wait until Cleaner is called and memory is returned to the system
-        for (int i = 0; i < 6_000; i++) {
+        for (int i = 1; i <= 10; i++) {
             if (ref.get() == null &&
-                    nativeMemoryUsedBeforeMap == nativeMemoryUsed() && // (*)
+                    nativeMemoryUsedBeforeMap >= nativeMemoryUsed() && // (*)
                     serializerCount.get() == serializersBeforeMap) {
                 break;
             }
             System.gc();
-            Jvm.pause(100);
+            Jvm.pause(i * 10);
+            System.out.println("ref.get()=" + (ref.get() == null));
+            System.out.println(nativeMemoryUsedBeforeMap + " <=> " + nativeMemoryUsed());
+            System.out.println(serializerCount.get() + " <=> " + serializersBeforeMap);
         }
-        Assert.assertEquals(nativeMemoryUsedBeforeMap, nativeMemoryUsed());
+        if (nativeMemoryUsedBeforeMap < nativeMemoryUsed())
+            Assert.assertEquals(nativeMemoryUsedBeforeMap, nativeMemoryUsed());
         Assert.assertEquals(serializersBeforeMap, serializerCount.get());
     }