I was attempting to load a file of unknown size and wanted to use the Progress API in indeterminate mode for the
duration of the loading process.  I therefore tried this code:

    ProgressHandle handle = ProgressHandleFactory.createHandle("Loading data");
    handle.switchToIndeterminate(); 
    handle.start();
    // actual loading code goes here

However, it hung and did not ever reach my loading code nor did it give any warning or error message about what I might
be doing wrong.  I was able to correct the problem by putting the call to switchToIndeterminate() after the call to start().

The documentation does not say that a handle may be switched to indeterminate mode only when running. Therefore I cannot
say whether it is a documentation of implementation problem, but fixing either would be OK with me.