ColladaImport: Each solid color is white

Hey there!

i am working with jmonkey since more than 10 months. each time this forum has an answer to my questions, but now it makes me crazy. so i hope someone has an answer to my current question!

I'm using ColladaImporter to import some Google-Sketch-up models. This works very well for full-textured models.

But: if there are some primitives (or meshes) inside of this model with no textures and they are only colored (e.g. gray or red), this color will not be imported: its just white.

i also call updateRenderState() and checked for the phong-blinn-type (here its lambert)

if i interpret the Collada-Spec right, then the following snippet should show the relevant xml from the dae:

<effect id="material_3_24-effect" name="material_3_24-effect">
            <technique sid="COMMON">
                     <color>0.000000 0.000000 0.000000 1</color>
                     <color>0.000000 0.000000 0.000000 1</color>
                     <color>0.549020 0.549020 0.560784 1</color>
                     <color>1 1 1 1</color>

the relevant passage from the

private void processLambert(lambertType lt, ColladaMaterial mat)
         throws Exception {
      // lambert shading, create a FLAT shade state and material state
      // with
      // defined colors.
      ShadeState ss = DisplaySystem.getDisplaySystem().getRenderer()
      // obtain the colors for the material
      MaterialState ms = DisplaySystem.getDisplaySystem().getRenderer()
      // set the ambient color value of the material
      if (lt.hasambient()) {
      // set the diffuse color value of the material
      if (lt.hasdiffuse()) {
         if (lt.getdiffuse().hascolor()) {
         if (lt.getdiffuse().hastexture()) {
            // create a texturestate, and we will need to make use of
            // texcoord to put this texture in the correct "unit"
            for (int i = 0; i < lt.getdiffuse().gettextureCount(); i++) {
                     lt.getdiffuse().gettextureAt(i), mat));
      // set the emmission color value of the material
      if (lt.hasemission()) {

      if (lt.hastransparent()) {
         if (lt.gettransparent().hascolor()
               && !lt.gettransparency().getfloat2().getValue().toString()
                     .equals("0")) {
            float alpha = lt.gettransparency().getfloat2().getValue()
            ColorRGBA diffuse = ms.getDiffuse();
            diffuse.a = 1.0f - alpha;

            BlendState as = DisplaySystem.getDisplaySystem().getRenderer()

      // Ignored: reflective attributes, transparent attributes

i am missguided, that these snippets are responsible for the color?

thanks! greets!

sorry for my english ;)