test/jdk/tools/jpackage/apps/image/Hello.java

@@ -19,48 +19,30 @@
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 
-import java.io.BufferedWriter;
-import java.io.File;
-import java.io.FileWriter;
-import java.io.PrintWriter;
+import java.io.BufferedOutputStream;
+import java.io.FileOutputStream;
+import java.io.PrintStream;
+import java.io.IOException;
 
 public class Hello {
 
     private static final String MSG = "jpackage test application";
     private static final int EXPECTED_NUM_OF_PARAMS = 3; // Starts at 1
 
-    public static void main(String[] args) {
-        printToStdout(args);
-        printToFile(args);
-    }
-
-    private static void printToStdout(String[] args) {
-        System.out.println(MSG);
-
-        System.out.println("args.length: " + args.length);
-
-        for (String arg : args) {
-            System.out.println(arg);
-        }
+    public static void main(String[] args) throws IOException {
+        printArgs(args, System.out);
 
-        for (int index = 1; index <= EXPECTED_NUM_OF_PARAMS; index++) {
-            String value = System.getProperty("param" + index);
-            if (value != null) {
-                System.out.println("-Dparam" + index + "=" + value);
+        try (PrintStream out = new PrintStream(new BufferedOutputStream(
+                new FileOutputStream("appOutput.txt")))) {
+            printArgs(args, out);
             }
         }
-    }
-
-    private static void printToFile(String[] args) {
-        String outputFile = "appOutput.txt";
-        File file = new File(outputFile);
 
-        try (PrintWriter out
-                = new PrintWriter(new BufferedWriter(new FileWriter(file)))) {
+    private static void printArgs(String[] args, PrintStream out) {
             out.println(MSG);
 
             out.println("args.length: " + args.length);
 
             for (String arg : args) {

@@ -71,10 +53,7 @@
                 String value = System.getProperty("param" + index);
                 if (value != null) {
                     out.println("-Dparam" + index + "=" + value);
                 }
             }
-        } catch (Exception ex) {
-            System.err.println(ex.getMessage());
-        }
     }
 }