I tried to test my mods on dedicated server launched in eclipse, everything loaded fine, but when i used client to connect to that server, it instantly crashed.

 

Client arguments:

--version 1.6 --tweakClass cpw.mods.fml.common.launcher.FMLTweaker --username rafradek --accessToken FML --userProperties={} --assetIndex 1.7.10 --assetsDir "C:/MCP 1.7.10/assets"

-Dfml.ignoreInvalidMinecraftCertificates=true -Dfml.coreMods.load=rafradek.wallpaint.core.WallPaintLoadingPlugin

 

 

log (client):

[16:55:59] [Client thread/INFO]: Connecting to localhost, 25565
[16:56:00] [Client thread/FATAL]: Reported exception thrown!
net.minecraft.util.ReportedException: Ticking screen
at net.minecraft.client.Minecraft.runTick(Minecraft.java:1765) ~[Minecraft.class:?]
at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1038) ~[Minecraft.class:?]
at net.minecraft.client.Minecraft.run(Minecraft.java:961) [Minecraft.class:?]
at net.minecraft.client.main.Main.main(Main.java:164) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_51]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_51]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) [launchwrapper-1.9.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?]
Caused by: java.lang.NullPointerException
at com.mojang.util.UUIDTypeAdapter.fromUUID(UUIDTypeAdapter.java:22) ~[uUIDTypeAdapter.class:?]
at com.mojang.util.UUIDTypeAdapter.write(UUIDTypeAdapter.java:13) ~[uUIDTypeAdapter.class:?]
at com.mojang.util.UUIDTypeAdapter.write(UUIDTypeAdapter.java:10) ~[uUIDTypeAdapter.class:?]
at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68) ~[TypeAdapterRuntimeTypeWrapper.class:?]
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:89) ~[ReflectiveTypeAdapterFactory$1.class:?]
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:195) ~[ReflectiveTypeAdapterFactory$Adapter.class:?]
at com.google.gson.Gson.toJson(Gson.java:593) ~[Gson.class:?]
at com.google.gson.Gson.toJson(Gson.java:572) ~[Gson.class:?]
at com.google.gson.Gson.toJson(Gson.java:527) ~[Gson.class:?]
at com.google.gson.Gson.toJson(Gson.java:507) ~[Gson.class:?]
at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:54) ~[YggdrasilAuthenticationService.class:?]
at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.joinServer(YggdrasilMinecraftSessionService.java:61) ~[YggdrasilMinecraftSessionService.class:?]
at net.minecraft.client.network.NetHandlerLoginClient.handleEncryptionRequest(NetHandlerLoginClient.java:62) ~[NetHandlerLoginClient.class:?]
at net.minecraft.network.login.server.S01PacketEncryptionRequest.processPacket(S01PacketEncryptionRequest.java:54) ~[s01PacketEncryptionRequest.class:?]
at net.minecraft.network.login.server.S01PacketEncryptionRequest.processPacket(S01PacketEncryptionRequest.java:62) ~[s01PacketEncryptionRequest.class:?]
at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:247) ~[NetworkManager.class:?]
at net.minecraft.client.multiplayer.GuiConnecting.updateScreen(GuiConnecting.java:116) ~[GuiConnecting.class:?]
at net.minecraft.client.Minecraft.runTick(Minecraft.java:1751) ~[Minecraft.class:?]
... 9 more
---- Minecraft Crash Report ----
// My bad.

Time: 11.07.14 16:56
Description: Ticking screen

java.lang.NullPointerException: Ticking screen
at com.mojang.util.UUIDTypeAdapter.fromUUID(UUIDTypeAdapter.java:22)
at com.mojang.util.UUIDTypeAdapter.write(UUIDTypeAdapter.java:13)
at com.mojang.util.UUIDTypeAdapter.write(UUIDTypeAdapter.java:10)
at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:89)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:195)
at com.google.gson.Gson.toJson(Gson.java:593)
at com.google.gson.Gson.toJson(Gson.java:572)
at com.google.gson.Gson.toJson(Gson.java:527)
at com.google.gson.Gson.toJson(Gson.java:507)
at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:54)
at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.joinServer(YggdrasilMinecraftSessionService.java:61)
at net.minecraft.client.network.NetHandlerLoginClient.handleEncryptionRequest(NetHandlerLoginClient.java:62)
at net.minecraft.network.login.server.S01PacketEncryptionRequest.processPacket(S01PacketEncryptionRequest.java:54)
at net.minecraft.network.login.server.S01PacketEncryptionRequest.processPacket(S01PacketEncryptionRequest.java:62)
at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:247)
at net.minecraft.client.multiplayer.GuiConnecting.updateScreen(GuiConnecting.java:116)
at net.minecraft.client.Minecraft.runTick(Minecraft.java:1751)
at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1038)
at net.minecraft.client.Minecraft.run(Minecraft.java:961)
at net.minecraft.client.main.Main.main(Main.java:164)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)


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

-- Head --
Stacktrace:
at com.mojang.util.UUIDTypeAdapter.fromUUID(UUIDTypeAdapter.java:22)
at com.mojang.util.UUIDTypeAdapter.write(UUIDTypeAdapter.java:13)
at com.mojang.util.UUIDTypeAdapter.write(UUIDTypeAdapter.java:10)
at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:89)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:195)
at com.google.gson.Gson.toJson(Gson.java:593)
at com.google.gson.Gson.toJson(Gson.java:572)
at com.google.gson.Gson.toJson(Gson.java:527)
at com.google.gson.Gson.toJson(Gson.java:507)
at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:54)
at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.joinServer(YggdrasilMinecraftSessionService.java:61)
at net.minecraft.client.network.NetHandlerLoginClient.handleEncryptionRequest(NetHandlerLoginClient.java:62)
at net.minecraft.network.login.server.S01PacketEncryptionRequest.processPacket(S01PacketEncryptionRequest.java:54)
at net.minecraft.network.login.server.S01PacketEncryptionRequest.processPacket(S01PacketEncryptionRequest.java:62)
at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:247)
at net.minecraft.client.multiplayer.GuiConnecting.updateScreen(GuiConnecting.java:116)

-- Affected screen --
Details:
Screen name: net.minecraft.client.multiplayer.GuiConnecting
Stacktrace:
at net.minecraft.client.Minecraft.runTick(Minecraft.java:1751)
at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1038)
at net.minecraft.client.Minecraft.run(Minecraft.java:961)
at net.minecraft.client.main.Main.main(Main.java:164)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 298841632 bytes (284 MB) / 407371776 bytes (388 MB) up to 922746880 bytes (880 MB)
JVM Flags: 0 total; 
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.05 FML v7.10.1.1160 Minecraft Forge 10.13.0.1160 6 mods loaded, 6 mods active
mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available
FML{7.10.1.1160} [Forge Mod Loader] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available
Forge{10.13.0.1160} [Minecraft Forge] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available
examplemod{1.0} [Example Mod] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available
rafradek_laser{1.0} [Laser] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available
rafradek_wallpaint{1.0} [Wall Painter] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available
Launched Version: 1.6
LWJGL: 2.9.1
OpenGL: ATI Mobility Radeon HD 5650 GL version 3.2.9756 Compatibility Profile Context, ATI Technologies Inc.
GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Packs: []
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Anisotropic Filtering: Off (1)
#@!@# Game crashed! Crash report saved to: #@!@# C:\MCP 1.7.10\.\crash-reports\crash-2014-07-11_16.56.00-client.txt
AL lib: (EE) alc_cleanup: 1 device not closed

 

 

log (server):

[16:51:24] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLServerTweaker
[16:51:24] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLServerTweaker
[16:51:24] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLServerTweaker
[16:51:24] [main/INFO] [FML]: Forge Mod Loader version 7.10.1.1160 for Minecraft 1.7.10 loading
[16:51:24] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.7.0_51, running on Windows 7:amd64:6.1, installed at C:\Program Files\Java\jre7
[16:51:24] [main/INFO] [FML]: Managed to load a deobfuscated Minecraft name- we are in a deobfuscated environment. Skipping runtime deobfuscation
[16:51:24] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:51:24] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[16:51:24] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:51:24] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:51:24] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper
[16:51:25] [main/ERROR] [FML]: The binary patch set is missing. Either you are in a development environment, or things are not going to work!
[16:51:27] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper
[16:51:27] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLDeobfTweaker
[16:51:28] [main/INFO] [LaunchWrapper]: Launching wrapped minecraft {net.minecraft.server.MinecraftServer}
[16:51:32] [server thread/INFO]: Starting minecraft server version 1.7.10
[16:51:32] [server thread/INFO] [MinecraftForge]: Attempting early MinecraftForge initialization
[16:51:32] [server thread/INFO] [FML]: MinecraftForge v10.13.0.1160 Initialized
[16:51:32] [server thread/INFO] [FML]: Replaced 182 ore recipies
[16:51:32] [server thread/INFO] [MinecraftForge]: Completed early MinecraftForge initialization
[16:51:33] [server thread/INFO] [FML]: Searching C:\MCP 1.7.10\mods for mods
[16:51:39] [server thread/ERROR] [FML]: FML has detected a mod that is using a package name based on 'net.minecraft.src' : net.minecraft.src.FMLRenderAccessLibrary. This is generally a severe programming error.  There should be no mod code in the minecraft namespace. MOVE YOUR MOD! If you're in eclipse, select your source code and 'refactor' it into a new package. Go on. DO IT NOW!
[16:51:39] [server thread/INFO] [FML]: Forge Mod Loader has identified 6 mods to load
[16:51:45] [server thread/INFO] [FML]: FML has found a non-mod file wallpaint_dummy.zip in your mods directory. It will now be injected into your classpath. This could severe stability issues, it should be removed if possible.
[16:51:45] [server thread/INFO] [FML]: Processing ObjectHolder annotations
[16:51:45] [server thread/INFO] [FML]: Found 341 ObjectHolder annotations
[16:51:45] [server thread/INFO] [FML]: Configured a dormant chunk cache size of 0
[16:51:46] [server thread/INFO] [FML]: Applying holder lookups
[16:51:46] [server thread/INFO] [FML]: Holder lookups applied
[16:51:46] [server thread/INFO]: Loading properties
[16:51:46] [server thread/INFO]: Default game type: SURVIVAL
[16:51:46] [server thread/INFO]: Generating keypair
[16:51:46] [server thread/INFO]: Starting Minecraft server on *:25565
DIRT BLOCK >> tile.dirt
[16:51:48] [server thread/INFO] [FML]: Forge Mod Loader has successfully loaded 6 mods
[16:51:48] [server thread/INFO]: Preparing level "world"
[16:51:48] [server thread/INFO] [FML]: Injecting existing block and item data into this server instance
[16:51:48] [server thread/INFO] [FML]: Injecting new block and item data into this server instance.
[16:51:48] [server thread/INFO] [FML]: Injected new block/item rafradek_laser:laserrafblock: 165 (init) -> 165 (map).
[16:51:48] [server thread/INFO] [FML]: Injected new block/item rafradek_wallpaint:mimicraf: 166 (init) -> 166 (map).
[16:51:48] [server thread/INFO] [FML]: Injected new block/item rafradek_laser:laserrafblock: 165 (init) -> 165 (map).
[16:51:48] [server thread/INFO] [FML]: Injected new block/item rafradek_wallpaint:brushraf: 4097 (init) -> 4097 (map).
[16:51:48] [server thread/INFO] [FML]: Injected new block/item rafradek_laser:laserraf: 4096 (init) -> 4096 (map).
[16:51:48] [server thread/INFO] [FML]: Injected new block/item rafradek_wallpaint:paintbucketraf: 4098 (init) -> 4098 (map).
[16:51:48] [server thread/INFO] [FML]: Injected new block/item rafradek_wallpaint:mimicraf: 166 (init) -> 166 (map).
[16:51:48] [server thread/INFO] [FML]: Injected new block/item rafradek_wallpaint:scraperraf: 4099 (init) -> 4099 (map).
[16:51:48] [server thread/INFO] [FML]: Applying holder lookups
[16:51:48] [server thread/INFO] [FML]: Holder lookups applied
[16:51:49] [server thread/INFO] [FML]: Loading dimension 0 (world) (net.minecraft.server.dedicated.DedicatedServer@3d381812)
[16:51:49] [server thread/INFO] [FML]: Loading dimension 1 (world) (net.minecraft.server.dedicated.DedicatedServer@3d381812)
[16:51:49] [server thread/INFO] [FML]: Loading dimension -1 (world) (net.minecraft.server.dedicated.DedicatedServer@3d381812)
[16:51:49] [server thread/INFO]: Preparing start region for level 0
[16:51:50] [server thread/INFO]: Preparing spawn area: 40%
[16:51:50] [server thread/INFO]: Done (2,283s)! For help, type "help" or "?"
[16:53:02] [server thread/INFO]: com.mojang.authlib.GameProfile@2bc6a19f[id=<null>,name=rafradek,properties={},legacy=false] (/127.0.0.1:58363) lost connection: Internal Exception: java.io.IOException: Istniejące połączenie zostało gwałtownie zamknięte przez zdalnego hosta

Had the same problem, fixed it by adding a --uuid argument and turning off online-mode on the server