Program: 70799
Project: 70799
Buggy source:
@Override public synchronized void render(Renderer renderer,int flags){
  if (!(renderer instanceof GL2Viewer)) {
    return;
  }
  GL2Viewer viewer=(GL2Viewer)renderer;
  GL2 gl=viewer.getGL2();
  if (textureLoader == null) {
    textureLoader=new GLTextureLoader();
  }
  refreshTextures(gl);
  RenderProps rprops=getRenderProps();
  if (drawBox) {
    float[] coords0=new float[3];
    float[] coords1=new float[3];
    final int[][] edges={{0,1},{1,2},{2,3},{3,0},{0,4},{1,5},{4,5},{5,6},{6,7},{7,4},{2,6},{3,7}};
    for (int i=0; i < edges.length; i++) {
      boxRenderCoords[edges[i][0]].get(coords0);
      boxRenderCoords[edges[i][1]].get(coords1);
      renderer.drawLine(rprops,coords0,coords1,isSelected());
    }
  }
  if (!renderer.isSelecting()) {
    gl.glDisable(GL2.GL_LIGHTING);
    gl.glEnable(GL2.GL_TEXTURE_2D);
    gl.glTexEnvf(GL2.GL_TEXTURE_ENV,GL2.GL_TEXTURE_ENV_MODE,GL2.GL_MODULATE);
    gl.glTexParameteri(GL.GL_TEXTURE_2D,GL.GL_TEXTURE_WRAP_S,GL.GL_CLAMP_TO_EDGE);
    gl.glTexParameteri(GL.GL_TEXTURE_2D,GL.GL_TEXTURE_WRAP_T,GL2.GL_CLAMP_TO_EDGE);
    gl.glTexParameteri(GL.GL_TEXTURE_2D,GL.GL_TEXTURE_MAG_FILTER,GL.GL_LINEAR);
    gl.glTexParameteri(GL.GL_TEXTURE_2D,GL.GL_TEXTURE_MIN_FILTER,GL.GL_LINEAR);
    float alpha=(float)rprops.getAlpha();
    gl.glColor4f(1f,1f,1f,alpha);
  }
  byte[] savedCullFaceEnabled=new byte[1];
  gl.glGetBooleanv(GL2.GL_CULL_FACE,savedCullFaceEnabled,0);
  gl.glDisable(GL2.GL_CULL_FACE);
  for (int i=0; i < 3; i++) {
    if (drawSlice[i]) {
      if (!renderer.isSelecting()) {
        GLTexture tex=textureLoader.getTextureByName(textureIds[i]);
        tex.bind(gl);
      }
      gl.glBegin(GL2.GL_QUADS);
      gl.glTexCoord2d(0,0);
      gl.glVertex3d(sliceRenderCoords[i][0].x,sliceRenderCoords[i][0].y,sliceRenderCoords[i][0].z);
      gl.glTexCoord2d(1,0);
      gl.glVertex3d(sliceRenderCoords[i][1].x,sliceRenderCoords[i][1].y,sliceRenderCoords[i][1].z);
      gl.glTexCoord2d(1,1);
      gl.glVertex3d(sliceRenderCoords[i][2].x,sliceRenderCoords[i][2].y,sliceRenderCoords[i][2].z);
      gl.glTexCoord2d(0,1);
      gl.glVertex3d(sliceRenderCoords[i][3].x,sliceRenderCoords[i][3].y,sliceRenderCoords[i][3].z);
      gl.glEnd();
    }
  }
  if (savedCullFaceEnabled[0] != 0) {
    gl.glEnable(GL2.GL_CULL_FACE);
  }
  if (!renderer.isSelecting()) {
    gl.glDisable(GL2.GL_TEXTURE_2D);
    gl.glEnable(GL2.GL_LIGHTING);
  }
}

Fixed version (ground truth):
@Override public synchronized void render(Renderer renderer,int flags){
  if (!(renderer instanceof GL2Viewer)) {
    return;
  }
  GL2Viewer viewer=(GL2Viewer)renderer;
  GL2 gl=viewer.getGL2();
  if (textureLoader == null) {
    textureLoader=new GLTextureLoader();
  }
  refreshTextures(gl);
  RenderProps rprops=getRenderProps();
  if (drawBox) {
    float[] coords0=new float[3];
    float[] coords1=new float[3];
    final int[][] edges={{0,1},{1,2},{2,3},{3,0},{0,4},{1,5},{4,5},{5,6},{6,7},{7,4},{2,6},{3,7}};
    for (int i=0; i < edges.length; i++) {
      boxRenderCoords[edges[i][0]].get(coords0);
      boxRenderCoords[edges[i][1]].get(coords1);
      renderer.drawLine(rprops,coords0,coords1,isSelected());
    }
  }
  if (!renderer.isSelecting()) {
    gl.glDisable(GL2.GL_LIGHTING);
    gl.glEnable(GL2.GL_TEXTURE_2D);
    gl.glTexEnvf(GL2.GL_TEXTURE_ENV,GL2.GL_TEXTURE_ENV_MODE,GL2.GL_MODULATE);
    gl.glTexParameteri(GL.GL_TEXTURE_2D,GL.GL_TEXTURE_WRAP_S,GL.GL_CLAMP_TO_EDGE);
    gl.glTexParameteri(GL.GL_TEXTURE_2D,GL.GL_TEXTURE_WRAP_T,GL2.GL_CLAMP_TO_EDGE);
    gl.glTexParameteri(GL.GL_TEXTURE_2D,GL.GL_TEXTURE_MAG_FILTER,GL.GL_LINEAR);
    gl.glTexParameteri(GL.GL_TEXTURE_2D,GL.GL_TEXTURE_MIN_FILTER,GL.GL_LINEAR);
    float alpha=(float)rprops.getAlpha();
    gl.glColor4f(1f,1f,1f,alpha);
  }
  byte[] savedCullFaceEnabled=new byte[1];
  gl.glGetBooleanv(GL2.GL_CULL_FACE,savedCullFaceEnabled,0);
  gl.glDisable(GL2.GL_CULL_FACE);
  for (int i=0; i < 3; i++) {
    if (drawSlice[i]) {
      if (!renderer.isSelecting()) {
        GLTexture tex=textureLoader.getTextureByNameAcquired(textureIds[i]);
        tex.bind(gl);
      }
      gl.glBegin(GL2.GL_QUADS);
      gl.glTexCoord2d(0,0);
      gl.glVertex3d(sliceRenderCoords[i][0].x,sliceRenderCoords[i][0].y,sliceRenderCoords[i][0].z);
      gl.glTexCoord2d(1,0);
      gl.glVertex3d(sliceRenderCoords[i][1].x,sliceRenderCoords[i][1].y,sliceRenderCoords[i][1].z);
      gl.glTexCoord2d(1,1);
      gl.glVertex3d(sliceRenderCoords[i][2].x,sliceRenderCoords[i][2].y,sliceRenderCoords[i][2].z);
      gl.glTexCoord2d(0,1);
      gl.glVertex3d(sliceRenderCoords[i][3].x,sliceRenderCoords[i][3].y,sliceRenderCoords[i][3].z);
      gl.glEnd();
    }
  }
  if (savedCullFaceEnabled[0] != 0) {
    gl.glEnable(GL2.GL_CULL_FACE);
  }
  if (!renderer.isSelecting()) {
    gl.glDisable(GL2.GL_TEXTURE_2D);
    gl.glEnable(GL2.GL_LIGHTING);
  }
}