FunctionPlotter.java

static ByteBuffer plotAsSVGInNewIsolate(String function, double xmin, double xmax) {
    /* Create a new isolate for the function evaluation and rendering. */
    IsolateThread renderingContext = Isolates.createIsolate(CreateIsolateParameters.getDefault());
    /* Render the function in the new isolate. */
    ...
    /* Tear down the isolate, freeing all the temporary objects. */
    Isolates.tearDownIsolate(renderingContext);
    return result;
}