diff --git a/app/src/processing/app/Editor.java b/app/src/processing/app/Editor.java
index 798d2bdb4..385688fe0 100644
--- a/app/src/processing/app/Editor.java
+++ b/app/src/processing/app/Editor.java
@@ -966,7 +966,13 @@ public class Editor extends JFrame implements RunnerListener {
       //System.err.println("Ignoring " + filename + " (" + e.getMessage() + ")");
       e.printStackTrace();
     } finally {
-      IOUtils.closeQuietly(zipFile);
+      if (zipFile != null) {
+        try {
+          zipFile.close();
+        } catch (IOException e) {
+          // noop
+        }
+      }
     }
     return null;
   }
diff --git a/arduino-core/src/processing/app/helpers/NetUtils.java b/arduino-core/src/processing/app/helpers/NetUtils.java
index e482e5247..17dc52c86 100644
--- a/arduino-core/src/processing/app/helpers/NetUtils.java
+++ b/arduino-core/src/processing/app/helpers/NetUtils.java
@@ -1,7 +1,5 @@
 package processing.app.helpers;
 
-import org.apache.commons.compress.utils.IOUtils;
-
 import java.io.IOException;
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
@@ -45,7 +43,13 @@ public abstract class NetUtils {
     } catch (IOException e) {
       return false;
     } finally {
-      IOUtils.closeQuietly(socket);
+      if (socket != null) {
+        try {
+          socket.close();
+        } catch (IOException e) {
+          // noop
+        }
+      }
     }
   }
 }