diff --git a/org.eclipse.debug.core/core/org/eclipse/debug/internal/core/LaunchConfigurationWorkingCopy.java b/org.eclipse.debug.core/core/org/eclipse/debug/internal/core/LaunchConfigurationWorkingCopy.java
index b591084..ecd6022 100644
--- a/org.eclipse.debug.core/core/org/eclipse/debug/internal/core/LaunchConfigurationWorkingCopy.java
+++ b/org.eclipse.debug.core/core/org/eclipse/debug/internal/core/LaunchConfigurationWorkingCopy.java
@@ -310,14 +310,8 @@
 						added = true;
 						updateMonitor(lmonitor, 1);
 					}
-					BufferedOutputStream stream = null;
-					try {
-						stream = new BufferedOutputStream(file.openOutputStream(EFS.NONE, null));
+					try (BufferedOutputStream stream = new BufferedOutputStream(file.openOutputStream(EFS.NONE, null))) {
 						stream.write(xml.getBytes(StandardCharsets.UTF_8));
-					} finally {
-						if(stream != null) {
-							stream.close();
-						}
 					}
 					//notify file saved
 					updateMonitor(lmonitor, 1);