Close streams even if catch occurs (avoid memory leaks)

cslrfid · Jul 16, 2021 · 574a2b5 · 574a2b5
1 parent d397ec2
commit 574a2b5
Showing 1 changed file with 10 additions and 5 deletions.
diff --git a/cs108library4a/src/main/java/com/csl/cs108library4a/Utility.java b/cs108library4a/src/main/java/com/csl/cs108library4a/Utility.java
@@ -133,15 +133,20 @@ void debugFileClose() {
     }
     void debugFileEnable(boolean enable) { enableFileDebug = enable; }
     void writeDebug2File(String stringDebug) {
-        if (fileDebug != null && enableFileDebug) {
+        if (fileDebug != null && inventoring) {
+            FileOutputStream outputStreamDebug;
+            PrintWriter printWriterDebug;
             try {
-                FileOutputStream outputStreamDebug = new FileOutputStream(fileDebug, true);
-                PrintWriter printWriterDebug = new PrintWriter(new OutputStreamWriter(new BufferedOutputStream(outputStreamDebug), "UTF-8"));
+                outputStreamDebug = new FileOutputStream(fileDebug, true);
+                printWriterDebug = new PrintWriter(new OutputStreamWriter(new BufferedOutputStream(outputStreamDebug), "UTF-8"));
                 printWriterDebug.println(stringDebug);
-                printWriterDebug.flush(); printWriterDebug.close();
-                outputStreamDebug.close();
             } catch (Exception ex) {
             }
+            if(outputStreamDebug != null) outputStreamDebug.close();
+            if(printWriterDebug) {
+                printWriterDebug.flush();
+                printWriterDebug.close();
+            }
         }
     }
 }