SLIDER-13 first java 7 code

git-svn-id: https://svn.apache.org/repos/asf/incubator/slider/trunk@1592707 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/slider-core/src/main/java/org/apache/slider/client/SliderClient.java b/slider-core/src/main/java/org/apache/slider/client/SliderClient.java
index 3858206..4d1fa57 100644
--- a/slider-core/src/main/java/org/apache/slider/client/SliderClient.java
+++ b/slider-core/src/main/java/org/apache/slider/client/SliderClient.java
@@ -2143,9 +2143,7 @@
     try {
       maybeStartRegistry();
       return registry.instanceIDs(SliderKeys.APP_TYPE);
-    } catch (IOException e) {
-      throw e;
-    } catch (YarnException e) {
+    } catch (YarnException | IOException e) {
       throw e;
     } catch (Exception e) {
       throw new IOException(e);