create() and close() to not throw an IOException.

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

@@ -27,7 +27,6 @@ import junit.framework.Test;
 import junit.framework.TestCase;
 import junit.framework.TestSuite;
 
-import java.io.IOException;
 import java.util.List;
 import java.util.Map;
 
@@ -106,22 +105,14 @@ public class GuavaTest extends TestCase {
 
         @Override
         Map<CharSequence, CharSequence> newMap() {
-            try {
-                return builder.create();
-            } catch (IOException e) {
-                throw new AssertionError(e);
-            }
+            return builder.create();
         }
     }
 
     static class HHMTestGenerator extends CHMTestGenerator {
         @Override
         Map<CharSequence, CharSequence> newMap() {
-            try {
-                return builder.create();
-            } catch (IOException e) {
-                throw new AssertionError(e);
-            }
+            return builder.create();
         }
     }
 }

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

@@ -22,7 +22,6 @@ import org.jetbrains.annotations.NotNull;
 import org.junit.Assert;
 
 import java.io.File;
-import java.io.IOException;
 import java.util.Collection;
 import java.util.Map;
 import java.util.Set;
@@ -268,7 +267,7 @@ public class ReplicationCheckingMap<K, V> implements ChronicleMap<K, V> {
     }
 
     @Override
-    public void close() throws IOException {
+    public void close() {
         map1.close();
         map2.close();
     }

src/test/java/net/openhft/chronicle/map/jrs166/map/StatelessChronicleMapTest.java

@@ -68,7 +68,7 @@ public class StatelessChronicleMapTest extends JSR166TestCase {
         }
 
         @Override
-        public void close() throws IOException {
+        public void close() {
             for (Closeable c : closeables) {
                 try {
                     c.close();