# java.lang.RuntimeException Java heap space error
**URL:** https://discourse.processing.org/t/java-lang-runtimeexception-java-heap-space-error/25351
**Category:** Libraries
**Created:** [November 11, 2020, 6:55pm UTC](https://discourse.processing.org/t/java-lang-runtimeexception-java-heap-space-error/25351 "2020-11-11T18:55:44Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@ahmed](https://discourse.processing.org/u/ahmed)
#### Post date: [November 11, 2020, 6:55pm UTC](https://discourse.processing.org/t/java-lang-runtimeexception-java-heap-space-error/25351/1 "2020-11-11T18:55:44Z")
I am trying to import STL CAD file in processing but getting an error java.lang.outofmemoryerror java heap space.
how to solve this issue ? i have increased my memory in Preferences tab to 10GB but issue still persist. My CAD file size is big its 20MB. I have also used the loadshape() function to import .obj file of the same model but not satisfied with the result. As STL is the required format on which i am working. Can any body help ?
operting system windows 10, processing version 3.0
Thanks
following the example code i am using.
import toxi.geom.\*;
import toxi.geom.mesh.\*;
import toxi.processing.\*;
TriangleMesh mesh;
ToxiclibsSupport gfx;
void setup() {
size(600,600,P3D);
mesh=(TriangleMesh)new STLReader().loadBinary(sketchPath(“part1.stl”),STLReader.TRIANGLEMESH);
//mesh=(TriangleMesh)new STLReader().loadBinary(sketchPath(“part1.stl”),STLReader.TRIANGLEMESH).flipYAxis();
gfx=new ToxiclibsSupport(this);
}
void draw() {
background(51);
lights();
translate(width/2,height/2,0);
rotateX(mouseY\*0.01);
rotateY(mouseX\*0.01);
gfx.origin(new Vec3D(),200);
noStroke();
gfx.mesh(mesh,false,10);
}
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### Author:  [@noel](https://discourse.processing.org/u/noel)
#### Post date: [November 14, 2020, 8:59am UTC](https://discourse.processing.org/t/java-lang-runtimeexception-java-heap-space-error/25351/2 "2020-11-14T08:59:20Z")
Could you post a link to the STL files?