try this:
gl.glColor3f( 0f,0f,0f);
glu.gluSphere(glu.gluNewQuadric(), 0.002, 10,10);
//x
gl.glRotatef(90,0f,1f,0f);
gl.glColor3d(.6f,.0f,.0f); // x = blue
glu.gluCylinder(glu.gluNewQuadric(), .001, .001, .1, 10, 10); gl.glTranslatef(0,0,.1f); glu.gluCylinder(glu.gluNewQuadric(), .002f, .0f, 0.01f, 10,10);
gl.glTranslatef(0,0,-.1f);
gl.glRotatef(-90,0f,1f,0f);
//y
gl.glRotatef(-90,1f,0f,0f);
gl.glColor3d(0.0f,.6f,.0f); // y = red
glu.gluCylinder(glu.gluNewQuadric(), .001, .001, .1, 10,10); gl.glTranslatef(0,0,.1f); glu.gluCylinder(glu.gluNewQuadric(), .002f, .0f, 0.01f, 10,10);
gl.glTranslatef(0,0,-.1f);
gl.glRotatef(90,1f,0f,0f);
//z
gl.glColor3d(.0f,.0f,.6f); // z = green
glu.gluCylinder(glu.gluNewQuadric(), .001, .001, .1, 10,10); gl.glTranslatef(0,0,.1f); glu.gluCylinder(glu.gluNewQuadric(), .002f, .0f, 0.01f, 10,10);