This valid triangle causes the following exception:

float[] points = new float[]{-0.001f, 0.142854f, -0.025393f,
                                      -0.001f, 0.142603f, -0.025318f,
                                      -0.000951f, 0.142652f, -0.025057f};
float[] texCoords = new float[]{0.0f, 0.0f};
int[] faces = new int[]{0,0, 1,0, 2,0};
TriangleMesh triaMesh = new TriangleMesh(points, texCoords, faces);

MeshView triaMeshView = new MeshView(triaMesh);
triaMeshView.setMaterial(new PhongMaterial(Color.RED));
 
But it works fine if the vertices are scaled by 10:

float[] pointsScaled = new float[]{-0.01f, 1.42854f, -0.25393f,
                                                -0.01f, 1.42603f, -0.25318f,
                                                -0.00951f, 1.42652f, -0.25057f};

java.lang.RuntimeException: nativeObject.buildGeometry failed
        at com.sun.javafx.sg.prism.NGTriangleMesh.updateNativeIfNeeded(NGTriangleMesh.java:62)
        at com.sun.javafx.sg.prism.NGTriangleMesh.getNativeObject(NGTriangleMesh.java:50)
        at com.sun.javafx.sg.prism.NGShape3D.getNativeObject(NGShape3D.java:80)
        at com.sun.javafx.sg.prism.NGShape3D.renderContent(NGShape3D.java:165)
        at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:428)
        at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:69)
        at com.sun.javafx.sg.BaseNode.render(BaseNode.java:1277)
        at com.sun.javafx.sg.prism.NGGroup.renderChildren(NGGroup.java:242)
        at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:208)
        at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:428)
        at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:69)
        at com.sun.javafx.sg.BaseNode.render(BaseNode.java:1277)
        at com.sun.javafx.sg.prism.NGGroup.renderChildren(NGGroup.java:242)
        at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:208)
        at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:428)
        at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:69)
        at com.sun.javafx.sg.BaseNode.render(BaseNode.java:1277)
        at com.sun.javafx.tk.quantum.ViewPainter.doPaint(ViewPainter.java:116)
        at com.sun.javafx.tk.quantum.AbstractPainter.paintImpl(AbstractPainter.java:219)
        at com.sun.javafx.tk.quantum.PresentingPainter.run(PresentingPainter.java:93)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
        at com.sun.prism.render.RenderJob.run(RenderJob.java:56)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at com.sun.javafx.tk.quantum.QuantumRenderer$PipelineRunnable.run(QuantumRenderer.java:131)
        at java.lang.Thread.run(Thread.java:722)