diff --git a/ndbench-cass-plugins/src/main/java/com/netflix/ndbench/plugin/cass/CassJavaDriverManagerImpl.java b/ndbench-cass-plugins/src/main/java/com/netflix/ndbench/plugin/cass/CassJavaDriverManagerImpl.java
index bed32380..09a172fe 100644
--- a/ndbench-cass-plugins/src/main/java/com/netflix/ndbench/plugin/cass/CassJavaDriverManagerImpl.java
+++ b/ndbench-cass-plugins/src/main/java/com/netflix/ndbench/plugin/cass/CassJavaDriverManagerImpl.java
@@ -46,7 +46,7 @@ public Cluster registerCluster(String clName, String contactPoint, int connectio
                 sslContext = SSLContext.getInstance("TLS");
                 sslContext.init(null,tmf.getTrustManagers(),null);
             } catch (Exception e) {
-                e.printStackTrace();
+                
             }
         SSLOptions sslOptions = RemoteEndpointAwareJdkSSLOptions.builder().withSSLContext(sslContext).build();
 
diff --git a/ndbench-core/src/main/java/com/netflix/ndbench/core/discovery/AWSUtil.java b/ndbench-core/src/main/java/com/netflix/ndbench/core/discovery/AWSUtil.java
index de620baf..2e20b2d9 100644
--- a/ndbench-core/src/main/java/com/netflix/ndbench/core/discovery/AWSUtil.java
+++ b/ndbench-core/src/main/java/com/netflix/ndbench/core/discovery/AWSUtil.java
@@ -62,7 +62,7 @@ private static String parseAwsMetadataByURL(String urlPublic){
             try {
                 in.close();
             } catch (IOException e) {
-                e.printStackTrace();
+                
             }
         }
     }
diff --git a/ndbench-core/src/test/java/org/libex/test/logging/log4j/Log4jCapturer.java b/ndbench-core/src/test/java/org/libex/test/logging/log4j/Log4jCapturer.java
index fe775463..fd6ff258 100644
--- a/ndbench-core/src/test/java/org/libex/test/logging/log4j/Log4jCapturer.java
+++ b/ndbench-core/src/test/java/org/libex/test/logging/log4j/Log4jCapturer.java
@@ -178,7 +178,7 @@ private void removeAppender() {
                 logger.removeAppender(appender);
             }
         } catch (RuntimeException e) {
-            e.printStackTrace();
+            
         }
     }