Crah on invalid piston data value

Please attach screenshots directly to the ticket in the future.

Unable to reproduce. Please provide additional information, so we can better help with your problem:

• How many pistons are there in the row?

• Why is some redstone already lit, some not?

• Was this a single player or multi-player/LAN game?

• Was the issue corrected after logging out and back in?

• Was the issue corrected after closing the program and restarting?

• Have you been able to reproduce this?

Please provide more screenshots.

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• There are 14.

• That's where the game crashed, replacing them does not work

• I tried on both, it crashes both.

• No it wasn't.

• No it wasn't.

• Yes I have.

Instead of a screenshot, I attached a world file where I built this.

I was able to reproduce the crash by removing the bottom most piece of redstone dust, and now the world crashes upon load.

There are tons of pistons placed with an invalid piston ID all over that place where it crashes. You have caused issues yourself through a 3rd party software.

Source block type: ID #55 (tile.redstoneDust // aoe)
	Block type: ID #33 (tile.pistonBase // aqt)
	Block data value: 6 / 0x6 / 0b0110

According to http://www.minecraftwiki.net/wiki/Data_value#Piston valid piston values range from 0-5, you have:

Block data value: 6 / 0x6 / 0b0110

hence the exception:

java.lang.ArrayIndexOutOfBoundsException: 6