add debug information.

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/Launcher.java

@@ -124,16 +124,16 @@ public final class Launcher {
             final String advice = MinecraftCrashAdvicer.getAdvice(trace);
             MessageBox.Show(C.i18n("crash.minecraft") + ": " + advice);
 
-            LogWindow.instance.setExit(TrueFunction.instance);
             System.err.println(C.i18n("crash.minecraft"));
             System.err.println(advice);
             System.err.println(trace);
+            LogWindow.instance.setExit(TrueFunction.instance);
             LogWindow.instance.setVisible(true);
             flag = 1;
         }
 
         println("*** Game Exited ***");
-        System.exit(flag);
+        Utils.shutdownForcely(1);
     }
     
     static Object getShutdownHaltLock() {

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/launch/GameLauncher.java

@@ -72,6 +72,7 @@ public class GameLauncher {
     }
 
     public IMinecraftLoader makeLaunchCommand() {
+        HMCLog.log("Logging in...");
         IMinecraftLoader loader;
         try {
             if (info != null)
@@ -98,10 +99,13 @@ public class GameLauncher {
         if (file != null)
             FileUtils.cleanDirectoryQuietly(file);
 
+        HMCLog.log("Detecting libraries...");
         if (!downloadLibrariesEvent.execute(provider.getDownloadLibraries(downloadType))) {
             failEvent.execute(C.i18n("launch.failed"));
             return null;
         }
+        
+        HMCLog.log("Unpacking natives...");
         if (!decompressNativesEvent.execute(provider.getDecompressLibraries())) {
             failEvent.execute(C.i18n("launch.failed"));
             return null;
@@ -152,6 +156,7 @@ public class GameLauncher {
      * @throws java.io.IOException write contents failed.
      */
     public File makeLauncher(String launcherName, List str) throws IOException {
+        HMCLog.log("Making shell launcher...");
         provider.onLaunch();
         boolean isWin = OS.os() == OS.WINDOWS;
         File f = new File(launcherName + (isWin ? ".bat" : ".sh"));

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/utils/auth/yggdrasil/YggdrasilAuthentication.java

@@ -12,6 +12,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.UUID;
 import org.jackhuang.hellominecraft.C;
+import org.jackhuang.hellominecraft.HMCLog;
 import org.jackhuang.hellominecraft.utils.NetUtils;
 import org.jackhuang.hellominecraft.utils.StrUtils;
 
@@ -122,8 +123,13 @@ public class YggdrasilAuthentication {
             String jsonResult = input == null ? NetUtils.get(url) : NetUtils.post(url, GSON.toJson(input), "application/json", proxy);
             Response response = (Response) GSON.fromJson(jsonResult, Response.class);
 
-            if (StrUtils.isNotBlank(response.error))
+            if (StrUtils.isNotBlank(response.error)) {
+                HMCLog.err("Failed to log in, the auth server returned an error: " + response.error + ", message: " + response.errorMessage + ", cause: " + response.cause);
+                if (response.errorMessage.contains("Invalid token")) {
+                    response.errorMessage = C.i18n("login.invalid_token");
+                }
                 throw new AuthenticationException("Request error: " + response.errorMessage);
+            }
 
             if (!clientToken.equals(response.clientToken))
                 throw new AuthenticationException(C.i18n("login.changed_client_token"));

HMCLAPI/src/main/java/org/jackhuang/hellominecraft/utils/NetUtils.java

@@ -105,17 +105,18 @@ public final class NetUtils {
         con.setDoOutput(true);
         con.setDoInput(true);
         con.setUseCaches(false);
-        con.setConnectTimeout(15000);
+        con.setConnectTimeout(30000);
-        con.setReadTimeout(15000);
+        con.setReadTimeout(30000);
         con.setRequestProperty("Content-Type", contentType + "; charset=utf-8");
-        con.setRequestProperty("Content-Length", "" + post.getBytes(DEFAULT_CHARSET).length);
+        byte[] bytes = post.getBytes(DEFAULT_CHARSET);
+        con.setRequestProperty("Content-Length", "" + bytes.length);
+        con.connect();
         OutputStream os = null;
         try {
             os = con.getOutputStream();
-            IOUtils.write(post, os, DEFAULT_CHARSET);
+            IOUtils.write(bytes, os);
         } finally {
-            if (os != null)
+            IOUtils.closeQuietly(os);
-                IOUtils.closeQuietly(os);
         }
 
         String result;
@@ -124,8 +125,7 @@ public final class NetUtils {
             is = con.getInputStream();
             result = getStreamContent(is);
         } catch (IOException ex) {
-            if (is != null)
+            IOUtils.closeQuietly(is);
-                IOUtils.closeQuietly(is);
             is = con.getErrorStream();
             result = getStreamContent(is);
         }

HMCLAPI/src/main/java/org/jackhuang/hellominecraft/views/LogWindow.java

@@ -16,6 +16,7 @@
  */
 package org.jackhuang.hellominecraft.views;
 
+import java.awt.Frame;
 import javax.swing.text.BadLocationException;
 import javax.swing.text.Document;
 import javax.swing.text.SimpleAttributeSet;
@@ -197,7 +198,15 @@ public class LogWindow extends javax.swing.JFrame {
     }// </editor-fold>//GEN-END:initComponents
 
     private void btnCloseActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnCloseActionPerformed
-        this.dispose();
+        boolean flag = false;
+        for (Frame f : Frame.getFrames()) {
+            if (f == this) continue;
+            if (f.isVisible()) flag = true;
+        }
+        if (flag)
+            this.dispose();
+        else
+            Utils.shutdownForcely(0);
     }//GEN-LAST:event_btnCloseActionPerformed
 
     private void btnClearActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnClearActionPerformed

HMCLAPI/src/main/resources/org/jackhuang/hellominecraft/launcher/I18N.properties

@@ -75,6 +75,7 @@ login.not_email=\u7528\u6237\u540d\u5fc5\u987b\u662f\u90ae\u7bb1
 login.type=\u767b\u5f55
 login.username=\u540d\u5b57
 login.account=\u90ae\u7bb1
+login.invalid_token=\u8bf7\u5c1d\u8bd5\u767b\u51fa\u5e76\u91cd\u65b0\u8f93\u5165\u5bc6\u7801\u767b\u5f55
 login.no_valid_character=\u65e0\u6709\u6548\u7684\u89d2\u8272\uff0c\u81ea\u884c\u5230skinme.cc\u767b\u9646\u5e76\u521b\u5efa\u89d2\u8272
 
 proxy.username=\u8d26\u6237

HMCLAPI/src/main/resources/org/jackhuang/hellominecraft/launcher/I18N_en_US.properties

@@ -75,6 +75,7 @@ login.not_email=The username must be a e-mail.
 login.type=Login
 login.username=Name
 login.account=Email
+login.invalid_token=Please log out and reinput your password to log in.
 login.no_valid_character=No Valid Character, please visit skinme.cc and create your own character.
 
 proxy.username=Account

HMCLAPI/src/main/resources/org/jackhuang/hellominecraft/launcher/I18N_zh_CN.properties

@@ -75,6 +75,7 @@ login.not_email=\u7528\u6237\u540d\u5fc5\u987b\u662f\u90ae\u7bb1
 login.type=\u767b\u5f55
 login.username=\u540d\u5b57
 login.account=\u90ae\u7bb1
+login.invalid_token=\u8bf7\u5c1d\u8bd5\u767b\u51fa\u5e76\u91cd\u65b0\u8f93\u5165\u5bc6\u7801\u767b\u5f55
 login.no_valid_character=\u65e0\u6709\u6548\u7684\u89d2\u8272\uff0c\u81ea\u884c\u5230skinme.cc\u767b\u9646\u5e76\u521b\u5efa\u89d2\u8272
 
 proxy.username=\u8d26\u6237

HMCLAPI/src/main/resources/org/jackhuang/hellominecraft/launcher/I18N_zh_TW.properties

@@ -75,6 +75,7 @@ login.not_email=\u7528\u6236\u540d\u5fc5\u9808\u662f\u90f5\u7bb1
 login.type=\u767b\u9304
 login.username=\u540d\u5b57
 login.account=\u90ae\u7bb1
+login.invalid_token=\u8acb\u5617\u8a66\u767b\u51fa\u4e26\u91cd\u65b0\u8f38\u5165\u5bc6\u78bc\u767b\u9304
 login.no_valid_character=\u7121\u6709\u6548\u7684\u89d2\u8272\uff0c\u81ea\u884c\u5230skinme.cc\u767b\u9678\u4e26\u5275\u5efa\u89d2\u8272
 
 proxy.username=\u8d26\u6236