Done. Hopefully.

earlyLauncher/config.txt

@@ -5,4 +5,5 @@ alignTo=G
 assets=../res/
 gameDir=../run/
 libs=../lib/
+java_executable=/usr/lib/jvm/java-8-openjdk-amd64/bin/java
 

earlyLauncher/earlylauncher.py

@@ -115,6 +115,7 @@ if main:
     assets = getDataOff2DArray("assets", config)
     gameDir = getDataOff2DArray("gameDir", config)
     libs = getDataOff2DArray("libs", config)
+    java_executable = getDataOff2DArray("java_executable", config)
     #TODO: allow the use of sys.argv to override config
 
     login=raw_input("eMail or username: ")
@@ -126,14 +127,5 @@ if main:
         offlineDataFile.close()
     except:
         print "Error creating offline login data. Proceeding with launch anyways."
-    #TODO: use config (or sys.argv) values
-    #os.system("java -Xmx"+str(ram)+alignTo+" -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M -Djava.library.path=runningDir/1.7.10-Forge10.13.4.1614-1.7.10-natives-6365946440842 -cp runningDir/libraries/net/minecraftforge/forge/1.7.10-10.13.4.1614-1.7.10/forge-1.7.10-10.13.4.1614-1.7.10.jar;runningDir/libraries/net/minecraft/launchwrapper/1.12/launchwrapper-1.12.jar;runningDir/libraries/org/ow2/asm/asm-all/5.0.3/asm-all-5.0.3.jar;runningDir/libraries/com/typesafe/akka/akka-actor_2.11/2.3.3/akka-actor_2.11-2.3.3.jar;runningDir/libraries/com/typesafe/config/1.2.1/config-1.2.1.jar;runningDir/libraries/org/scala-lang/scala-actors-migration_2.11/1.1.0/scala-actors-migration_2.11-1.1.0.jar;runningDir/libraries/org/scala-lang/scala-compiler/2.11.1/scala-compiler-2.11.1.jar;runningDir/libraries/org/scala-lang/plugins/scala-continuations-library_2.11/1.0.2/scala-continuations-library_2.11-1.0.2.jar;runningDir/libraries/org/scala-lang/plugins/scala-continuations-plugin_2.11.1/1.0.2/scala-continuations-plugin_2.11.1-1.0.2.jar;runningDir/libraries/org/scala-lang/scala-library/2.11.1/scala-library-2.11.1.jar;runningDir/libraries/org/scala-lang/scala-parser-combinators_2.11/1.0.1/scala-parser-combinators_2.11-1.0.1.jar;runningDir/libraries/org/scala-lang/scala-reflect/2.11.1/scala-reflect-2.11.1.jar;runningDir/libraries/org/scala-lang/scala-swing_2.11/1.0.1/scala-swing_2.11-1.0.1.jar;runningDir/libraries/org/scala-lang/scala-xml_2.11/1.0.2/scala-xml_2.11-1.0.2.jar;runningDir/libraries/lzma/lzma/0.0.1/lzma-0.0.1.jar;runningDir/libraries/net/sf/jopt-simple/jopt-simple/4.5/jopt-simple-4.5.jar;runningDir/libraries/com/google/guava/guava/17.0/guava-17.0.jar;runningDir/libraries/org/apache/commons/commons-lang3/3.3.2/commons-lang3-3.3.2.jar;runningDir/libraries/com/mojang/netty/1.6/netty-1.6.jar;runningDir/libraries/com/mojang/realms/1.3.5/realms-1.3.5.jar;runningDir/libraries/org/apache/commons/commons-compress/1.8.1/commons-compress-1.8.1.jar;runningDir/libraries/org/apache/httpcomponents/httpclient/4.3.3/httpclient-4.3.3.jar;runningDir/libraries/commons-logging/commons-logging/1.1.3/commons-logging-1.1.3.jar;runningDir/libraries/org/apache/httpcomponents/httpcore/4.3.2/httpcore-4.3.2.jar;runningDir/libraries/java3d/vecmath/1.3.1/vecmath-1.3.1.jar;runningDir/libraries/net/sf/trove4j/trove4j/3.0.3/trove4j-3.0.3.jar;runningDir/libraries/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.jar;runningDir/libraries/net/sf/jopt-simple/jopt-simple/4.5/jopt-simple-4.5.jar;runningDir/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar;runningDir/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar;runningDir/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar;runningDir/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar;runningDir/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar;runningDir/libraries/io/netty/netty-all/4.0.10.Final/netty-all-4.0.10.Final.jar;runningDir/libraries/com/google/guava/guava/15.0/guava-15.0.jar;runningDir/libraries/org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.jar;runningDir/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar;runningDir/libraries/commons-codec/commons-codec/1.9/commons-codec-1.9.jar;runningDir/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar;runningDir/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar;runningDir/libraries/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar;runningDir/libraries/com/mojang/authlib/1.5.21/authlib-1.5.21.jar;runningDir/libraries/org/apache/logging/log4j/log4j-api/2.0-beta9/log4j-api-2.0-beta9.jar;runningDir/libraries/org/apache/logging/log4j/log4j-core/2.0-beta9/log4j-core-2.0-beta9.jar;runningDir/libraries/org/lwjgl/lwjgl/lwjgl/2.9.1/lwjgl-2.9.1.jar;runningDir/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.1/lwjgl_util-2.9.1.jar;runningDir/libraries/tv/twitch/twitch/5.16/twitch-5.16.jar;runningDir/1.7.10.jar net.minecraft.launchwrapper.Launch --username "+username+" --version 1.7.10-Forge10.13.4.1614-1.7.10 --gameDir runningDir --assetsDir runningDir/assets --assetIndex 1.7.10 --uuid "+str(uuid)+" --accessToken "+str(accessToken)+" --userProperties {} --userType mojang --tweakClass cpw.mods.fml.common.launcher.FMLTweaker")
-    #temporary code
-    print username
-    print uuid
-    print accessToken
-    print ram
-    print alignTo
-    print assets
-    print gameDir
-    print libs
+    os.system(java_executable+" -Xmx"+ram+alignTo+" -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M -Djava.library.path="+os.path.join(libs, "natives")+" -cp "+os.path.join(libs,"jar","*")+" net.minecraft.launchwrapper.Launch --username "+username+" --version 1.7.10-Forge10.13.4.1614-1.7.10 --gameDir "+gameDir+" --assetsDir "+assets+" --assetIndex 1.7.10 --uuid "+str(uuid)+" --accessToken "+accessToken+" --userProperties {} --userType mojang --tweakClass cpw.mods.fml.common.launcher.FMLTweaker")
+

earlyLauncher/offline.txt

@@ -1,3 +1,3 @@
 username=LinuxMint4Ever
-access_token=f63b458254964f3fa4bd7ccfff302ea9
+access_token=d66f395020644524844d83a431a5aada
 profile_id=f8b426e586c04abf8e4dc5048f8719ac