Happens Semi-Often: Description: Ticking block entity | java.util.ConcurrentModificationException

Minecraft Version: 14w30c

Operating System: Windows 8 (amd64) version 6.2

Java Version: 1.7.0_60, Oracle Corporation

Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation

Memory: 237730128 bytes (226 MB) / 455610368 bytes (434 MB) up to 1060372480 bytes (1011 MB)

JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M

IntCache: cache: 0, tcache: 62, allocated: 13, tallocated: 95

Launched Version: 14w30c

LWJGL: 2.9.1

OpenGL: AMD Radeon HD 7660D GL version 4.4.12874 Compatibility
Profile Context 14.100.0.0, ATI Technologies Inc.

GL Caps: Using GL 1.3 multitexturing.

Using VBOs: No

Is Modded: Probably not. Jar signature remains and client brand is untouched.

Type: Client (map_client.txt)

Resource Packs: [NoBlur1_0.zip]

Current Language: English (US)

Profiler Position: N/A (disabled)