From 5a6e53da1ca13517c16f45d03273f4d88525ed71 Mon Sep 17 00:00:00 2001
From: Christofer Dutz <christofer.dutz@codecentric.de>
Date: Thu, 13 Jul 2017 10:14:17 +0200
Subject: [PATCH] Cleaned up the code a little to not exit with 0 in case of an
 error.

---
 maven-wrapper/mvnw | 40 +++++++++++++++++++++-------------------
 1 file changed, 21 insertions(+), 19 deletions(-)

diff --git a/maven-wrapper/mvnw b/maven-wrapper/mvnw
index bc09d18ad6..9e810d3654 100755
--- a/maven-wrapper/mvnw
+++ b/maven-wrapper/mvnw
@@ -217,32 +217,34 @@ import java.nio.channels.*;
 public class MavenWrapperDownloader {
 
     public static void main(String args[]) {
-        System.out.println("Downloader started");
+        System.out.println("- Downloader started");
         String url="http://central.maven.org/maven2/io/takari/maven-wrapper/0.2.1/maven-wrapper-0.2.1.jar";
         File baseDirectory = new File(args[0]);
-        System.out.println("Using base directory: " + baseDirectory.getAbsolutePath());
-        File outputFile = new File(baseDirectory.getAbsolutePath()
-        , ".mvn/wrapper/maven-wrapper.jar");
+        System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath());
+        File outputFile = new File(baseDirectory.getAbsolutePath(), ".mvn/wrapper/maven-wrapper.jar");
         if(!outputFile.getParentFile().exists()) {
             outputFile.getParentFile().mkdirs();
         }
-        System.out.println("Downloading to: " + outputFile.getAbsolutePath());
-        downloadFileFromURL(url, outputFile);
-        System.out.println("Done");
+        System.out.println("- Downloading to: " + outputFile.getAbsolutePath());
+        try {
+            downloadFileFromURL(url, outputFile);
+            System.out.println("Done");
+            System.exit(0);
+        } catch (Throwable e) {
+            System.out.println("- Error downloading");
+            e.printStackTrace();
+            System.exit(1);
+        }
     }
 
-    public static void downloadFileFromURL(String urlString, File destination) {
-        try {
-            URL website = new URL(urlString);
-            ReadableByteChannel rbc;
-            rbc = Channels.newChannel(website.openStream());
-            FileOutputStream fos = new FileOutputStream(destination);
-            fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
-            fos.close();
-            rbc.close();
-        } catch (Throwable e) {
-            e.printStackTrace();
-        }
+    public static void downloadFileFromURL(String urlString, File destination) throws Exception {
+        URL website = new URL(urlString);
+        ReadableByteChannel rbc;
+        rbc = Channels.newChannel(website.openStream());
+        FileOutputStream fos = new FileOutputStream(destination);
+        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
+        fos.close();
+        rbc.close();
     }
 
 }