Error-- Caused by: java.lang.OutOfMemoryError: Java heap space

[Absiinthe]

So, I wanted to create a Modded Multiplayer Server with Forge, and I went through all the required steps of multiple tutorials, but my server is only running in Vanilla. Whenever I try to launch forge-1.8.9-11.15.1.1902-1.8.9-universal, it crashes after a minute or so of running, and doesn't load the mods. Here is the crash report given:

 

---- Minecraft Crash Report ----
// I let you down. Sorry

Time: 3/5/17 12:14 PM
Description: Exception in server tick loop

net.minecraftforge.fml.common.LoaderException: java.lang.OutOfMemoryError: Java heap space
    at net.minecraftforge.fml.common.LoadController.transition(LoadController.java:162)
    at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:559)
    at net.minecraftforge.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:88)
    at net.minecraftforge.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:320)
    at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:112)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:441)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.OutOfMemoryError: Java heap space
    at java.awt.image.DataBufferByte.<init>(Unknown Source)
    at java.awt.image.ComponentSampleModel.createDataBuffer(Unknown Source)
    at java.awt.image.Raster.createWritableRaster(Unknown Source)
    at javax.imageio.ImageTypeSpecifier.createBufferedImage(Unknown Source)
    at javax.imageio.ImageReader.getDestination(Unknown Source)
    at com.sun.imageio.plugins.png.PNGImageReader.readImage(Unknown Source)
    at com.sun.imageio.plugins.png.PNGImageReader.read(Unknown Source)
    at com.mia.craftstudio.utils.ImageIOCS.read(ImageIOCS.java:26)
    at com.mia.craftstudio.CSModel.<init>(CSModel.java:379)
    at com.mia.craftstudio.CSPack.readPackFile(CSPack.java:135)
    at com.mia.craftstudio.CSProject.loadPacks(CSProject.java:241)
    at com.mia.craftstudio.minecraft.forge.CSLibMod.getCSProjectAndLoad(CSLibMod.java:86)
    at com.mia.props.Props.loadModels(Props.java:218)
    at com.mia.props.Props.preInit(Props.java:178)
    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.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:560)
    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 com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
    at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
    at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
    at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
    at com.google.common.eventbus.EventBus.post(EventBus.java:275)
    at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:211)
    at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:189)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

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

-- System Details --
Details:
    Minecraft Version: 1.8.9
    Operating System: Windows 10 (x86) version 10.0
    Java Version: 1.8.0_121, Oracle Corporation
    Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
    Memory: 225704 bytes (0 MB) / 259522560 bytes (247 MB) up to 259522560 bytes (247 MB)
    JVM Flags: 0 total; 
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    FML: MCP 9.19 Powered by Forge 11.15.1.1902 8 mods loaded, 8 mods active
    States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
    UCH    mcp{9.19} [Minecraft Coder Pack] (minecraft.jar) 
    UCH    FML{8.0.99.99} [Forge Mod Loader] (forge-1.8.9-11.15.1.1902-1.8.9-universal.jar) 
    UCH    Forge{11.15.1.1902} [Minecraft Forge] (forge-1.8.9-11.15.1.1902-1.8.9-universal.jar) 
    UCH    BiblioCraft{2.0.1} [BiblioCraft] (BiblioCraft[v2.0.1][MC1.8.9].jar) 
    UCH    PTRModelLib{1.0.0} [PTRModelLib] (Decocraft-2.3.6.1_1.8.9.jar) 
    UCE    props{2.3.6.1} [Decocraft] (Decocraft-2.3.6.1_1.8.9.jar) 
    UCH    moreplayermodels{1.8.9} [MorePlayerModels] (MorePlayerModels_1.8.9(27feb16).jar) 
    UCH    harvestcraft{1.8.9d} [Pam's HarvestCraft] (Pam's HarvestCraft 1.8.9e.jar) 
    Loaded coremods (and transformers): 
    Profiler Position: N/A (disabled)
    Is Modded: Definitely; Server brand changed to 'fml,forge'
    Type: Dedicated Server (map_server.txt)

 

Please help, thank you.

[larsgerrits]

Try assigning more RAM to Minecraft (256MB is not enough).

Edited March 5, 2017 by larsgerrits

[Absiinthe]

1 minute ago, larsgerrits said:

Assign more RAM to Minecraft (256MB is not enough).

How would I do that? Thank you for the quick response.

[larsgerrits]

If you run the server via a command line or a batch file (practically the same), add the -Xmx[ram] to the line starting the server. You could try to look in a config file somewhere (Does that exist?).

[Absiinthe]

13 minutes ago, larsgerrits said:

If you run the server via a command line or a batch file (practically the same), add the -Xmx[ram] to the line starting the server. You could try to look in a config file somewhere (Does that exist?).

The only config files which exist are for the mods, and two from Forge, called "forge.cfg" and "forgeChunkLoading.cfg" 

 

But, I noticed that it is possible to change the JMV Arguments from the new launcher, and it contains the -Xmx[ram] section. Can I use this, instead

[Absiinthe]

8 minutes ago, diesieben07 said:

The launcher has nothing to do with how the server is run. And the cfg files don't contain the JVM arguments. There is a lot of information on google if you search for "assign more memory to java".

Okay, thank you.