[MC-87599] Minecraft crashes when I try to load a world.

What I expected to happen was...:
My world would load.

What actually happened was...:
Minecraft crashed(also on the launcher it said play offline but my wifi was working fine).

Steps to Reproduce:
1. Load MInecraft
2. Select a world.
3. Load it.

Related issues

duplicates

MC-34749 Hopper: java.lang.IllegalStateException: failed to create a child event loop - Caused by AntiVirus / Firewall software

Attachments

crash-2015-09-11_18.16.29-client.txt

Comments

migrated 2015-08-28T23:00:31Z

[media]

CubeTheThird 2015-08-29T03:20:16Z

Incomplete without a crash report from ([minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder]). Please attach it so that we can diagnose your issue.

For technical support please use the Mojang Support Center.

CubeTheThird 2015-09-14T16:10:10Z

Duplicate of MC-34749. Something, like your anti-virus or firewall software, is blocking java.
For technical support please use the Mojang Support Center.