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my worlds crash upon start-up, new or old; here is my error log:
---- Minecraft Crash Report ----
// Everything's going to plan. No, really, that was supposed to happen.

Time: 6/29/14 2:38 PM
Description: Exception in server tick loop

java.lang.NoClassDefFoundError: java/util/Objects
at codechicken.nei.ItemStackMap$StackMetaKey.hashCode(ItemStackMap.java:33)
at java.util.HashMap.put(Unknown Source)
at codechicken.nei.ItemStackMap$DetailMap.put(ItemStackMap.java:84)
at codechicken.nei.ItemStackMap.put(ItemStackMap.java:195)
at codechicken.nei.NEIServerConfig.loadBannedItems(NEIServerConfig.java:184)
at codechicken.nei.NEIServerConfig.load(NEIServerConfig.java:46)
at codechicken.nei.ServerHandler.loadEvent(ServerHandler.java:44)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_82_ServerHandler_loadEvent_Load.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:51)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:122)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:73)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:92)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:374)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:669)
Caused by: java.lang.ClassNotFoundException: java.util.Objects
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:104)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 14 more


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
Minecraft Version: 1.7.2
Operating System: Windows XP (x86) version 5.1
Java Version: 1.6.0_31, Sun Microsystems Inc.
Java VM Version: Java HotSpot™ Client VM (mixed mode), Sun Microsystems Inc.
Memory: 181728520 bytes (173 MB) / 519741440 bytes (495 MB) up to 1037959168 bytes (989 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 16, allocated: 29, tallocated: 77
FML: MCP v9.03 FML v7.2.209.1112 Minecraft Forge 10.12.1.1112 22 mods loaded, 22 mods active
mcp{9.03} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
FML{7.2.209.1112} [Forge Mod Loader] (forge-1.7.2-10.12.1.1112.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
Forge{10.12.1.1112} [Minecraft Forge] (forge-1.7.2-10.12.1.1112.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
CodeChickenCore{1.0.0} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
NotEnoughItems{1.0.1} [Not Enough Items] (NotEnoughItems-1.7.2-1.0.1-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
bspkrsCore{6.0(1.7.2)} [bspkrsCore] ([1.7.2]bspkrsCore-universal-6.0(1.7.2).jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
DamageIndicatorsMod{3.1.2} [Damage Indicators] ([1.7.2]DamageIndicatorsMod-3.1.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
TreeCapitator{1.7.2.r01} [TreeCapitator] ([1.7.2]TreeCapitator-universal-1.7.2.r01.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
ArchimedesShips{1.7.2 v1.7.0} [Archimedes' Ships] (ArchimedesShips.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
CarpentersBlocks{3.1.4} [Carpenter's Blocks] (Carpenter's Blocks v3.1.4 - MC 1.7+.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
electromagneticcoherence{1.0.0} [Electromagnetic Coherence] (Electromagnetic Coherence-1.0.0.27-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
flansmod{4.3.0} [Flan's Mod] (Flans Mod-1.7.2-4.3.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
CARuins{0.1.5} [Cellular Automata Generator] (Generatormods-0.1.5(1.7.2).jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
GreatWallMod{0.1.5} [Great Wall Mod] (Generatormods-0.1.5(1.7.2).jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
WalledCityMod{0.1.5} [Walled City Generator] (Generatormods-0.1.5(1.7.2).jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
Lantern{2.0} [Lanterns and Flashlights] (Lanterns_and_Flashlights-2.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
LightBridgesAndDoors{0.1.9} [kris91268's Light Bridges and Doors] (Light_Bridges_and_Doors_V1.9.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
mcheli{0.8.1} [MC Helicopter] (mcheli) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
MoreMaterials{1.0} [More Materials] (MoreMaterials_v1.0_[1.7.2].jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
PneumaticCraft{1.1.6} [PneumaticCraft] (PneumaticCraft-1.1.6.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
RedstonePasteMod{1.6.1} [Redstone Paste] (RedstonePasteMod-1.7.2-1.6.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
thedalekmod{13.20} [DalekMod] (The Dalek Mod - 1.7.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Player Count: 0 / 8; []
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'


p.s. will post in a spoiler as soon as I figure it out