Sliders have incorrect values causing world to never be created (java.lang.IllegalArgumentException: n must be positive)

Confirmed

java.lang.IllegalArgumentException: n must be positive

[14:34:15 INFO]: Client> [14:34:15] [Server thread/INFO]: Starting integrated minecraft server version 14w17a
[14:34:15 INFO]: Client> [14:34:15] [Server thread/INFO]: Generating keypair
[14:34:15 INFO]: Client> [14:34:15] [Server thread/INFO]: Converting map!
[14:34:15 INFO]: Client> [14:34:15] [Server thread/INFO]: Scanning folders...
[14:34:15 INFO]: Client> [14:34:15] [Server thread/INFO]: Total conversion count is 0
[14:34:15 INFO]: Client> [14:34:15] [Server thread/INFO]: Preparing start region for level 0
[14:34:16 INFO]: Client> [14:34:16] [Server thread/ERROR]: Encountered an unexpected exception
[14:34:16 INFO]: Client> java.lang.IllegalArgumentException: n must be positive
[14:34:16 INFO]: Client> 	at java.util.Random.nextInt(Unknown Source) ~[?:1.7.0_45]
[14:34:16 INFO]: Client> 	at alx.a(SourceFile:262) ~[14w17a.jar:?]
[14:34:16 INFO]: Client> 	at alx.a(SourceFile:278) ~[14w17a.jar:?]
[14:34:16 INFO]: Client> 	at alx.a(SourceFile:92) ~[14w17a.jar:?]
[14:34:16 INFO]: Client> 	at alx.a(SourceFile:49) ~[14w17a.jar:?]
[14:34:16 INFO]: Client> 	at amk.a(SourceFile:47) ~[14w17a.jar:?]
[14:34:16 INFO]: Client> 	at ayy.a(SourceFile:460) ~[14w17a.jar:?]
[14:34:16 INFO]: Client> 	at od.a(SourceFile:175) ~[14w17a.jar:?]
[14:34:16 INFO]: Client> 	at axr.a(SourceFile:859) ~[14w17a.jar:?]
[14:34:16 INFO]: Client> 	at od.c(SourceFile:104) ~[14w17a.jar:?]
[14:34:16 INFO]: Client> 	at net.minecraft.server.MinecraftServer.i(SourceFile:269) ~[14w17a.jar:?]
[14:34:16 INFO]: Client> 	at cim.a(SourceFile:94) ~[14w17a.jar:?]
[14:34:16 INFO]: Client> 	at cim.g(SourceFile:110) ~[14w17a.jar:?]
[14:34:16 INFO]: Client> 	at net.minecraft.server.MinecraftServer.run(SourceFile:367) [14w17a.jar:?]
[14:34:16 INFO]: Client> 	at mu.run(SourceFile:667) [14w17a.jar:?]
[14:34:16 INFO]: Client> [14:34:16] [Server thread/ERROR]: This crash report has been saved to: C:\Users\USERNAME\AppData\Roaming\.minecraft\crash-reports\crash-2014-04-24_14.34.16-server.txt
[14:34:16 INFO]: Client> [14:34:16] [Server thread/INFO]: Stopping server
[14:34:16 INFO]: Client> [14:34:16] [Server thread/INFO]: Saving players
[14:34:16 INFO]: Client> [14:34:16] [Server thread/INFO]: Saving worlds
[14:34:16 INFO]: Client> [14:34:16] [Server thread/INFO]: Saving chunks for level 'New World'/Overworld
[14:34:16 INFO]: Client> [14:34:16] [Server thread/INFO]: Saving chunks for level 'New World'/Nether
[14:34:16 INFO]: Client> [14:34:16] [Server thread/INFO]: Saving chunks for level 'New World'/The End
[14:42:09 ERROR]: Game ended with bad state (exit code 1)

It appears that changing the river size also causes this.

But how come when I try to quit Minecraft it doesn't?

Still an issue in 14w18a
Not fixed
seems to happen a lot with andesite

Reopened due to MC-54755.

well at least they re opened the issue because of me.

Wanted to add that this is still in 14w19a

Fixed, though rather than limiting the slider values themselves (which would be difficult), it will internally swap min/max if the min setting is greater than max.

According to MC-55376, this appears to still occur in 14w20b.