diff --git a/src/test/java/net/openhft/chronicle/map/Issue42.java b/src/test/java/net/openhft/chronicle/map/Issue42.java
new file mode 100644
index 000000000..e9d03840a
--- /dev/null
+++ b/src/test/java/net/openhft/chronicle/map/Issue42.java
@@ -0,0 +1,34 @@
+package net.openhft.chronicle.map;
+
+import org.junit.Test;
+import org.testng.Assert;
+
+import java.io.IOException;
+
+import static net.openhft.chronicle.map.Alignment.NO_ALIGNMENT;
+import static net.openhft.chronicle.map.Builder.getPersistenceFile;
+
+public class Issue42 {
+    @Test
+    public void crashJVMWindowsTest() throws IOException {
+        final ChronicleMap<CharSequence, CharSequence> map = ChronicleMapBuilder
+                .of(CharSequence.class, CharSequence.class)
+                .entryAndValueAlignment(NO_ALIGNMENT)
+                .entrySize(18)
+                .entries(15000000)
+                .minSegments(128)
+                .create(getPersistenceFile());
+
+        for (int i = 0; i < 10000000; ++i) {
+            String s = String.valueOf(i);
+            map.put(s, s);
+        }
+
+        for (int i = 0; i < 10000000; ++i) {
+            String s = String.valueOf(i);
+            Assert.assertEquals(s, map.get(s));
+        }
+
+        map.close();
+    }
+}