c# - Minecraft not starting -

i in project of launcher minecraft, without using java! c#.

i have code not know what's going wrong, java open closes.

public void runminecraft()     {         list<string> j_args = new list<string>();         list<string> libraries = new list<string>();          args = "";          int x = convert.toint32(numericupdown1.value);         j_args.add("-xx:heapdumppath=mojangtricksinteldriversforperformance_javaw.exe_minecraft.exe.heapdump");         j_args.add("-xmx" + x + "g");         j_args.add("-djava.library.path=" + application.startuppath + "\\data\\natives");         j_args.add("net.minecraft.client.main.main");         string lib = application.startuppath + "\\data\\libraries\\{0}";         string app = application.startuppath;         string game = application.startuppath + "\\data\\game";         string assets = application.startuppath + "\\data\\assets";          #region libraries         libraries.add(format2(lib, "oshi-core-1.1.jar"));         libraries.add(format2(lib, "jna-3.4.0.jar"));         libraries.add(format2(lib, "platform-3.4.0.jar"));         libraries.add(format2(lib, "icu4j-core-mojang-51.2.jar"));         libraries.add(format2(lib, "jopt-simple-4.6.jar"));         libraries.add(format2(lib, "codecjorbis-20101023.jar"));         libraries.add(format2(lib, "codecwav-20101023.jar"));         libraries.add(format2(lib, "libraryjavasound-20101123.jar"));         libraries.add(format2(lib, "librarylwjglopenal-20100824.jar"));         libraries.add(format2(lib, "soundsystem-20120107.jar"));         libraries.add(format2(lib, "netty-all-4.0.23.final.jar"));         libraries.add(format2(lib, "guava-17.0.jar"));         libraries.add(format2(lib, "commons-lang3-3.3.2.jar"));         libraries.add(format2(lib, "commons-io-2.4.jar"));         libraries.add(format2(lib, "commons-codec-1.9.jar"));         libraries.add(format2(lib, "jinput-2.0.5.jar"));         libraries.add(format2(lib, "jutils-1.0.0.jar"));         libraries.add(format2(lib, "gson-2.2.4.jar"));         libraries.add(format2(lib, "authlib-1.5.21.jar"));         libraries.add(format2(lib, "realms-1.7.48.jar"));         libraries.add(format2(lib, "httpcore-4.3.2.jar"));         libraries.add(format2(lib, "log4j-api-2.0-beta9.jar"));         libraries.add(format2(lib, "log4j-core-2.0-beta9.jar"));         libraries.add(format3(lib, "1.8.6.jar"));         #endregion          var librariesstr = "";          var enum0 = libraries.getenumerator();         while (enum0.movenext())         {             librariesstr += enum0.current;         }          j_args.add("-cp " + librariesstr);         j_args.add("--username " + username.text);         j_args.add("--accesstoken " + accesstoken.text);         j_args.add("--userproperties {}");         j_args.add("--version 1.8.6");         j_args.add("--gamedir " + game);          var argsstr = "";         var enum1 = j_args.getenumerator();         while (enum1.movenext())         {             argsstr += enum1.current + " ";         }          processstartinfo info = new processstartinfo();         info.filename = @"c:\program files\java\jre7\bin\java.exe";         info.arguments = args;          info.useshellexecute = false;         info.redirectstandardoutput = true;         info.redirectstandarderror = true;          process p = new process();         p.startinfo = info;         p.outputdatareceived += p_outputdatareceived;         info.createnowindow = true;          p.start();         p.beginoutputreadline();          // clipboard.settext(argsstr);     }      private string format3(string a, string b)     {         return string.format(a, b);     }      #region format2     private string format2(string a, string b)     {         return string.format(a, b) + ";";     }     #endregion 

i use format2 function cause formatting of libraries correctly. example:

libraries.add("unnamed_lib1.jar"); libraries.add ("unnamed_lib2.jar"); 

the result this:

args = "unnamed_lib1.jar;unnamed_lib2.jar;"; 

and function format3(string a, string b); event finish jar file of game. example: "1.8.9.jar" without ';' @ end

sorry misspelling because not speak english. , using google translator me texts.

i'm using 1.8.6 version of minecraft start

place -cp (classpath) arguments before net.minecraft.client.main.main , or considered arguments application (main class), not javaw executable.

it (i wrote of arguments, ommited java.exe , maybe other things) :

j_args.add("-xx:heapdumppath=mojangtricksinteldriversforperformance_javaw.exe_minecraft.exe.heapdump"); j_args.add("-xmx" + x + "g"); j_args.add("-djava.library.path=" + application.startuppath + "\\data\\natives"); j_args.add("-cp " + librariesstr); j_args.add("net.minecraft.client.main.main"); j_args.add("--username " + username.text); j_args.add("--accesstoken " + accesstoken.text); j_args.add("--userproperties {}"); j_args.add("--version 1.8.6"); j_args.add("--gamedir " + game);