i log on to minecraft and a little bit of playing a server it will give me an error code and take me back to the launcher. Idont know what to do ive done all i can.

I think what happened was I was trying to download the mod optifine. My minecraft was working fine before this , but I downloaded the latest version of java and then was able to get optifine. then I logged into a server it took me out and into the launcher with this error code: By the way I uninstalled java. [14:46:47] [Client thread/INFO]: Setting user: BurntToast20
[14:46:47] [Client thread/INFO]: (Session ID is token:bbacf62a962b46e9b7ddc76e3dd401f0:e706c72f791f4056b8cca50be58c9e49)
[14:46:48] [Client thread/INFO]: LWJGL Version: 2.9.1
[14:46:49] [Client thread/INFO]: Reloading ResourceManager: Default
[14:46:49] [Sound Library Loader/INFO]: Starting up SoundSystem...
[14:46:49] [Thread-6/INFO]: Initializing LWJGL OpenAL
[14:46:49] [Thread-6/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[14:46:49] [Thread-6/INFO]: OpenAL initialized.
[14:46:50] [Sound Library Loader/INFO]: Sound engine started
[14:46:50] [Client thread/INFO]: Created: 512x512 textures-atlas
[14:47:02] [Client thread/INFO]: Connecting to US.MINEPLEX.com, 25565
[14:47:11] [Client thread/WARN]: Unable to play unknown soundEvent: minecraft:none
[14:47:21] [Client thread/WARN]: Unable to play unknown soundEvent: minecraft:none
[14:47:26] [Client thread/INFO]: [CHAT] Portal> You have been sent to DE-11
[14:47:27] [Client thread/INFO]: [CHAT] 2 Azrica hi
[14:47:32] [Client thread/INFO]: [CHAT] Team> You joined Players Team.
[14:47:37] [Client thread/INFO]: [CHAT] 7 fishy_corn Hello Adelcius
[14:47:43] [Client thread/INFO]: [CHAT] 9 McReniel ^^
[14:47:48] [Client thread/INFO]: [CHAT] 7 fishy_corn E Z
[14:47:51] [Client thread/INFO]: [CHAT] 0 polsiro 321
[14:47:55] [Client thread/INFO]: [CHAT]
[14:47:55] [Client thread/INFO]: [CHAT]
[14:47:55] [Client thread/INFO]: [CHAT]
[14:47:55] [Client thread/INFO]: [CHAT] =============================================
[14:47:55] [Client thread/INFO]: [CHAT] Game - Dragon Escape
[14:47:55] [Client thread/INFO]: [CHAT]
[14:47:55] [Client thread/INFO]: [CHAT] Douglas the Dragon is after you!
[14:47:55] [Client thread/INFO]: [CHAT] RUN!!!!!!!!!!
[14:47:55] [Client thread/INFO]: [CHAT] Last player alive wins!
[14:47:55] [Client thread/INFO]: [CHAT]
[14:47:55] [Client thread/INFO]: [CHAT] Map - Through Hell created by Chiss & Genocide604
[14:47:55] [Client thread/INFO]: [CHAT] =============================================
[14:48:02] [Client thread/INFO]: [CHAT] Chat> Chat is no longer silenced.
[14:48:07] [Client thread/INFO]: [CHAT] Death> luckyninja2180 killed by Lava.
[14:48:07] [Client thread/INFO]: [CHAT] Death> Azrica killed by Lava.
[14:48:07] [Client thread/INFO]: [CHAT] Death> skeletondudet killed by Lava.
[14:48:08] [Client thread/INFO]: [CHAT] Death> BeastlyBro619 killed by Lava.
[14:48:08] [Client thread/INFO]: [CHAT] Death> magmacubegirl54 killed by Lava.
[14:48:11] [Client thread/INFO]: [CHAT] Death> fluffyunicorn88 killed by Fall.
[14:48:12] [Client thread/INFO]: [CHAT] Death> BurntToast20 killed by Fall.
[14:48:12] [Client thread/INFO]: [CHAT] #0: Fall [3dmg] [-] [3.6 Seconds Prior]
[14:48:12] [Client thread/INFO]: [CHAT] Condition> You are now invisible.
[14:48:13] [Client thread/INFO]: [CHAT]
[14:48:13] [Client thread/INFO]: [CHAT] You are out of the game, but DON'T QUIT!
[14:48:13] [Client thread/INFO]: [CHAT] The next game will be starting soon...
#

1. A fatal error has been detected by the Java Runtime Environment:
   #

2. EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x46384960, pid=1476, tid=11856
   #

3. JRE version: Java(TM) SE Runtime Environment (8.0_25-b18) (build 1.8.0_25-b18)

4. Java VM: Java HotSpot(TM) Client VM (25.25-b02 mixed mode windows-x86 )

5. Problematic frame:

6. C [ig4icd32.dll+0x44960]
   #

7. Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
   #

8. An error report file with more information is saved as:

9. C:\Users\User\AppData\Roaming\.minecraft\hs_err_pid1476.log
   #

10. If you would like to submit a bug report, please visit:

11. http://bugreport.sun.com/bugreport/crash.jsp

12. The crash happened outside the Java Virtual Machine in native code.

13. See problematic frame for where to report the bug.
    #
    AL lib: (EE) alc_cleanup: 1 device not closed