1 files changed, 9 insertions, 7 deletions

diff --git a/src/main/java/de/pixart/messenger/utils/ExceptionHelper.java b/src/main/java/de/pixart/messenger/utils/ExceptionHelper.java
index 7ed5e4804..efec5098b 100644
--- a/src/main/java/de/pixart/messenger/utils/ExceptionHelper.java
+++ b/src/main/java/de/pixart/messenger/utils/ExceptionHelper.java
@@ -19,6 +19,7 @@ import java.io.OutputStream;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.List;
+import java.util.Locale;
 
 import de.pixart.messenger.Config;
 import de.pixart.messenger.R;
@@ -31,7 +32,8 @@ import de.pixart.messenger.xmpp.jid.InvalidJidException;
 import de.pixart.messenger.xmpp.jid.Jid;
 
 public class ExceptionHelper {
-    private static SimpleDateFormat DATE_FORMATs = new SimpleDateFormat("yyyy-MM-dd");
+    private static final String FILENAME = "stacktrace.txt";
+    private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd", Locale.ENGLISH);
 
     public static void init(Context context) {
         if (!(Thread.getDefaultUncaughtExceptionHandler() instanceof ExceptionHandler)) {
@@ -60,7 +62,7 @@ public class ExceptionHelper {
                 return false;
             }
             final Account finalAccount = account;
-            FileInputStream file = activity.openFileInput("stacktrace.txt");
+            FileInputStream file = activity.openFileInput(FILENAME);
             InputStreamReader inputStreamReader = new InputStreamReader(file);
             BufferedReader stacktrace = new BufferedReader(inputStreamReader);
             final StringBuilder report = new StringBuilder();
@@ -68,11 +70,11 @@ public class ExceptionHelper {
             PackageInfo packageInfo;
             try {
                 packageInfo = pm.getPackageInfo(activity.getPackageName(), PackageManager.GET_SIGNATURES);
-                report.append("Version: " + packageInfo.versionName + '\n');
-                report.append("Last Update: " + DATE_FORMATs.format(new Date(packageInfo.lastUpdateTime)) + '\n');
+                report.append("Version: ").append(packageInfo.versionName).append('\n');
+                report.append("Last Update: ").append(DATE_FORMAT.format(new Date(packageInfo.lastUpdateTime))).append('\n');
                 Signature[] signatures = packageInfo.signatures;
                 if (signatures != null && signatures.length >= 1) {
-                    report.append("SHA-1: " + CryptoHelper.getFingerprintCert(packageInfo.signatures[0].toByteArray()) + "\n");
+                    report.append("SHA-1: ").append(CryptoHelper.getFingerprintCert(packageInfo.signatures[0].toByteArray())).append('\n');
                 }
                 report.append('\n');
             } catch (Exception e) {
@@ -85,7 +87,7 @@ public class ExceptionHelper {
                 report.append('\n');
             }
             file.close();
-            activity.deleteFile("stacktrace.txt");
+            activity.deleteFile(FILENAME);
             AlertDialog.Builder builder = new AlertDialog.Builder(activity);
             builder.setTitle(activity.getString(R.string.crash_report_title));
             builder.setMessage(activity.getText(R.string.crash_report_message));
@@ -128,7 +130,7 @@ public class ExceptionHelper {
 
     public static void writeToStacktraceFile(Context context, String msg) {
         try {
-            OutputStream os = context.openFileOutput("stacktrace.txt", Context.MODE_PRIVATE);
+            OutputStream os = context.openFileOutput(FILENAME, Context.MODE_PRIVATE);
             os.write(msg.getBytes());
             os.flush();
             os.close();