CacheService: move default method impl to iface

Author: ctrueden

src/main/java/org/scijava/cache/CacheService.java

@@ -63,5 +63,11 @@ public interface CacheService extends SciJavaService {
 	 *         of the value loader.
 	 * @throws ExecutionException
 	 */
-	<V> V get(Object key, Callable<V> valueLoader) throws ExecutionException;
+	@SuppressWarnings("unchecked")
+	default <V> V get(final Object key, final Callable<V> valueLoader)
+		throws ExecutionException
+	{
+		return (V)get(key);
+	}
+
 }

src/main/java/org/scijava/cache/DefaultCacheService.java

@@ -33,8 +33,6 @@
 
 import java.util.Map;
 import java.util.WeakHashMap;
-import java.util.concurrent.Callable;
-import java.util.concurrent.ExecutionException;
 
 import org.scijava.Priority;
 import org.scijava.plugin.Plugin;
@@ -61,14 +59,6 @@ public Object get(final Object key) {
 		return map.get(key);
 	}
 
-	@SuppressWarnings("unchecked")
-	@Override
-	public <V> V get(final Object key, final Callable<V> valueLoader)
-		throws ExecutionException
-	{
-		return (V)get(key);
-	}
-
 	// -- Service Methods --
 
 	@Override