frameRate() can crash 2.0b7

If you use advanced OpenGL, frameRate can crash the sketch.  Wanted to post here before I submit a bug report.  Maybe it's something simple I'm not doing.  I put the frameRate change on the keyEvent.

1. import javax.media.opengl.GL2;
2.  
3. float a;
4. GL2 gl;
5. PGraphicsOpenGL pgl;
6. float[] projMatrix;
7. float[] mvMatrix;
8.  
9. void setup() {
10.   size(800, 600, OPENGL);
11.   pgl = (PGraphicsOpenGL) g;  // g may change
12.   gl = pgl.beginPGL().gl.getGL2();
13.   projMatrix = new float[16];
14.   mvMatrix = new float[16];
15. }
16.  
17. void draw() {
18.  
19. background(255);
20.  
21.   pgl.beginPGL();
22.  
23.   gl.glColor4f(0.7, 0.7, 0.7, 0.8);
24.   gl.glTranslatef(width/2, height/2, 0);
25.   gl.glRotatef(a, 1, 0, 0);
26.   gl.glRotatef(a*2, 0, 1, 0);
27.   gl.glRectf(-200, -200, 200, 200);
28.   gl.glRotatef(90, 1, 0, 0);
29.   gl.glRectf(-200, -200, 200, 200);
30.  
31.   pgl.endPGL();
32.   loadMatrix();
33.   a += 0.5;
34. }
35.  
36. void loadMatrix() {
37.  
38.   gl.glMatrixMode(GL2.GL_PROJECTION);
39.   projMatrix[0] = pgl.projection.m00;
40.   projMatrix[1] = pgl.projection.m10;
41.   projMatrix[2] = pgl.projection.m20;
42.   projMatrix[3] = pgl.projection.m30;
43.  
44.   projMatrix[4] = pgl.projection.m01;
45.   projMatrix[5] = pgl.projection.m11;
46.   projMatrix[6] = pgl.projection.m21;
47.   projMatrix[7] = pgl.projection.m31;
48.  
49.   projMatrix[8] = pgl.projection.m02;
50.   projMatrix[9] = pgl.projection.m12;
51.   projMatrix[10] = pgl.projection.m22;
52.   projMatrix[11] = pgl.projection.m32;
53.  
54.   projMatrix[12] = pgl.projection.m03;
55.   projMatrix[13] = pgl.projection.m13;
56.   projMatrix[14] = pgl.projection.m23;
57.   projMatrix[15] = pgl.projection.m33;
58.  
59.   gl.glLoadMatrixf(projMatrix, 0);
60.  
61.   gl.glMatrixMode(GL2.GL_MODELVIEW);
62.   mvMatrix[0] = pgl.modelview.m00;
63.   mvMatrix[1] = pgl.modelview.m10;
64.   mvMatrix[2] = pgl.modelview.m20;
65.   mvMatrix[3] = pgl.modelview.m30;
66.  
67.   mvMatrix[4] = pgl.modelview.m01;
68.   mvMatrix[5] = pgl.modelview.m11;
69.   mvMatrix[6] = pgl.modelview.m21;
70.   mvMatrix[7] = pgl.modelview.m31;
71.  
72.   mvMatrix[8] = pgl.modelview.m02;
73.   mvMatrix[9] = pgl.modelview.m12;
74.   mvMatrix[10] = pgl.modelview.m22;
75.   mvMatrix[11] = pgl.modelview.m32;
76.  
77.   mvMatrix[12] = pgl.modelview.m03;
78.   mvMatrix[13] = pgl.modelview.m13;
79.   mvMatrix[14] = pgl.modelview.m23;
80.   mvMatrix[15] = pgl.modelview.m33;
81.   gl.glLoadMatrixf(mvMatrix, 0);
82. }
84. void keyPressed() {
85.   frameRate(2000);
86. }