diff --git a/Zutil.iml b/Zutil.iml
index f4cd222..cbd59c3 100755
--- a/Zutil.iml
+++ b/Zutil.iml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_7" inherit-compiler-output="true">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
     <exclude-output />
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
diff --git a/test/zutil/struct/ObjectCacheTest.java b/test/zutil/struct/ObjectCacheTest.java
index 3a5c79c..96e64ef 100755
--- a/test/zutil/struct/ObjectCacheTest.java
+++ b/test/zutil/struct/ObjectCacheTest.java
@@ -97,7 +97,7 @@ public class ObjectCacheTest {
         cache.put(KEY, OBJECT);
         cache.put(KEY2, OBJECT2);
         assertEquals(2, cache.size());
-        Thread.sleep(12);
+        Thread.sleep(20);
         assertEquals(2, cache.size());
         assertEquals(2, cache.garbageCollect());
         assertEquals(0, cache.size());
diff --git a/test/zutil/struct/TimedHashSetTest.java b/test/zutil/struct/TimedHashSetTest.java
index dda7ed3..b1a2a49 100755
--- a/test/zutil/struct/TimedHashSetTest.java
+++ b/test/zutil/struct/TimedHashSetTest.java
@@ -50,7 +50,6 @@ public class TimedHashSetTest {
     public void tenMsTTL() throws InterruptedException {
         TimedHashSet set = new TimedHashSet(10);
         set.add(ENTRY);
-        Thread.sleep(1);
         assertTrue(set.contains(ENTRY));
         Thread.sleep(10);
         assertFalse(set.contains(ENTRY));
@@ -70,7 +69,7 @@ public class TimedHashSetTest {
         set.add(ENTRY);
         set.add(ENTRY2);
         assertEquals(2, set.size());
-        Thread.sleep(12);
+        Thread.sleep(20);
         assertEquals(2, set.size());
         assertEquals(2, set.garbageCollect());
         assertEquals(0, set.size());