(gdb) print m_rStream
$4 = empty uno::Reference
(gdb) bt
#0  0x00007f0a2414c048 in XSLT::XSLTFilter::exporter (this=0x344d4f0, aSourceData=uno::Sequence of length 2 = {...}, msUserData=uno::Sequence of length 8 = {...})
    at /build/aoo/src/playground/trunk/main/filter/source/xsltfilter/XSLTFilter.cxx:479
#1  0x00007f0a24a13eb4 in XMLFilterTestDialog::doExport (this=0x7fff36522540, xComp=uno::Reference to (SwXTextDocument *) 0x29763d8)
    at /build/aoo/src/playground/trunk/main/filter/source/xsltdialog/xmlfiltertestdialog.cxx:513
#2  0x00007f0a24a1393e in XMLFilterTestDialog::onExportCurrentDocument (this=0x7fff36522540)
    at /build/aoo/src/playground/trunk/main/filter/source/xsltdialog/xmlfiltertestdialog.cxx:463
#3  0x00007f0a24a15aff in XMLFilterTestDialog::ClickHdl_Impl (this=0x7fff36522540, pButton=0x7fff365232b8)
    at /build/aoo/src/playground/trunk/main/filter/source/xsltdialog/xmlfiltertestdialog.cxx:707
#4  0x00007f0a24a15aaf in XMLFilterTestDialog::LinkStubClickHdl_Impl (pThis=0x7fff36522540, pCaller=0x7fff365232b8)
    at /build/aoo/src/playground/trunk/main/filter/source/xsltdialog/xmlfiltertestdialog.cxx:699
#5  0x00007f0a53e9dd8e in Link::Call (this=0x7fff365234e0, pCaller=0x7fff365232b8) at /build/aoo/src/playground/trunk/main/solver/400/unxlngx6/inc/tools/link.hxx:135
#6  0x00007f0a53ede589 in Control::ImplCallEventListenersAndHandler (this=0x7fff365232b8, nEvent=1102, rHandler=..., pCaller=0x7fff365232b8)
    at /build/aoo/src/playground/trunk/main/vcl/source/control/ctrl.cxx:384
#7  0x00007f0a53ec42d4 in Button::Click (this=0x7fff365232b8) at /build/aoo/src/playground/trunk/main/vcl/source/control/button.cxx:150
#8  0x00007f0a53ec8fb3 in PushButton::Tracking (this=0x7fff365232b8, rTEvt=...) at /build/aoo/src/playground/trunk/main/vcl/source/control/button.cxx:1430
#9  0x00007f0a5424d410 in Window::EndTracking (this=0x7fff365232b8, nFlags=0) at /build/aoo/src/playground/trunk/main/vcl/source/window/window2.cxx:764
#10 0x00007f0a5427db93 in ImplHandleMouseEvent (pWindow=0x7fff36522540, nSVEvent=2, bMouseLeave=0 '\000', nX=367, nY=122, nMsgTime=34111059, nCode=1, nMode=3)
    at /build/aoo/src/playground/trunk/main/vcl/source/window/winproc.cxx:807
#11 0x00007f0a54283319 in ImplHandleSalMouseButtonUp (pWindow=0x7fff36522540, pEvent=0x7fff36521cf0) at /build/aoo/src/playground/trunk/main/vcl/source/window/winproc.cxx:2086
#12 0x00007f0a54282543 in ImplWindowFrameProc (pWindow=0x7fff36522540, nEvent=4, pEvent=0x7fff36521cf0) at /build/aoo/src/playground/trunk/main/vcl/source/window/winproc.cxx:2415
#13 0x00007f0a466980ab in SalFrame::CallCallback (this=0x3428578, nEvent=4, pEvent=0x7fff36521cf0) at /build/aoo/src/playground/trunk/main/vcl/inc/salframe.hxx:281
#14 0x00007f0a466ba058 in GtkSalFrame::signalButton (pEvent=0x2d6a4e0, frame=0x3428578) at /build/aoo/src/playground/trunk/main/vcl/unx/gtk/window/gtkframe.cxx:2678
#15 0x000000339a7426ec in _gtk_marshal_BOOLEAN__BOXED (closure=0x282a700, return_value=0x7fff36521e90, n_param_values=<optimized out>, param_values=0x7fff36521f40, 
    invocation_hint=<optimized out>, marshal_data=<optimized out>) at gtkmarshalers.c:86
#16 0x000000397620fa28 in g_closure_invoke (closure=0x282a700, return_value=return_value@entry=0x7fff36521e90, n_param_values=2, param_values=param_values@entry=0x7fff36521f40, 
    invocation_hint=invocation_hint@entry=0x7fff36521ee0) at gclosure.c:777
#17 0x0000003976220a3d in signal_emit_unlocked_R (node=node@entry=0x20213d0, detail=detail@entry=0, instance=instance@entry=0x2c953e0, 
    emission_return=emission_return@entry=0x7fff36522010, instance_and_params=instance_and_params@entry=0x7fff36521f40) at gsignal.c:3584
#18 0x0000003976228462 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fff365220d8)
    at gsignal.c:3338
#19 0x0000003976228a72 in g_signal_emit (instance=instance@entry=0x2c953e0, signal_id=<optimized out>, detail=detail@entry=0) at gsignal.c:3384
#20 0x000000339a86a474 in gtk_widget_event_internal (widget=widget@entry=0x2c953e0, event=event@entry=0x2d6a4e0) at gtkwidget.c:5017
#21 0x000000339a86a749 in IA__gtk_widget_event (widget=widget@entry=0x2c953e0, event=event@entry=0x2d6a4e0) at gtkwidget.c:4814
#22 0x000000339a740934 in IA__gtk_propagate_event (widget=0x2c953e0, event=0x2d6a4e0) at gtkmain.c:2490
#23 0x000000339a740cfb in IA__gtk_main_do_event (event=0x2d6a4e0) at gtkmain.c:1685
#24 0x000000339ae5e2dc in gdk_event_dispatch (source=source@entry=0x14f14f0, callback=<optimized out>, user_data=<optimized out>) at gdkevents-x11.c:2403
#25 0x0000003973e47e06 in g_main_dispatch (context=0x14f15e0) at gmain.c:3054
#26 g_main_context_dispatch (context=context@entry=0x14f15e0) at gmain.c:3630
#27 0x0000003973e48158 in g_main_context_iterate (context=context@entry=0x14f15e0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3701
#28 0x0000003973e481fc in g_main_context_iteration (context=0x14f15e0, may_block=1) at gmain.c:3762
#29 0x00007f0a466979fc in GtkXLib::Yield (this=0x14b8288, bWait=true, bHandleAllCurrentEvents=false) at /build/aoo/src/playground/trunk/main/vcl/unx/gtk/app/gtkdata.cxx:874
#30 0x00007f0a46341f8a in X11SalInstance::Yield (this=0x14910e8, bWait=true, bHandleAllCurrentEvents=false)
    at /build/aoo/src/playground/trunk/main/vcl/unx/generic/app/salinst.cxx:278
#31 0x00007f0a53eaf5a5 in ImplYield (i_bWait=true, i_bAllEvents=false) at /build/aoo/src/playground/trunk/main/vcl/source/app/svapp.cxx:472
#32 0x00007f0a53eab69b in Application::Yield (i_bAllEvents=false) at /build/aoo/src/playground/trunk/main/vcl/source/app/svapp.cxx:506
#33 0x00007f0a541aab86 in Dialog::Execute (this=0x7fff36522540) at /build/aoo/src/playground/trunk/main/vcl/source/window/dialog.cxx:701
#34 0x00007f0a24a11ca9 in XMLFilterTestDialog::test (this=0x7fff36522540, rFilterInfo=...)
    at /build/aoo/src/playground/trunk/main/filter/source/xsltdialog/xmlfiltertestdialog.cxx:226
#35 0x00007f0a24a0372a in XMLFilterSettingsDialog::onTest (this=0x33a3758) at /build/aoo/src/playground/trunk/main/filter/source/xsltdialog/xmlfiltersettingsdialog.cxx:811
#36 0x00007f0a24a00773 in XMLFilterSettingsDialog::ClickHdl_Impl (this=0x33a3758, pButton=0x33a40b8)
    at /build/aoo/src/playground/trunk/main/filter/source/xsltdialog/xmlfiltersettingsdialog.cxx:143
#37 0x00007f0a24a006f7 in XMLFilterSettingsDialog::LinkStubClickHdl_Impl (pThis=0x33a3758, pCaller=0x33a40b8)
    at /build/aoo/src/playground/trunk/main/filter/source/xsltdialog/xmlfiltersettingsdialog.cxx:129
#38 0x00007f0a53e9dd8e in Link::Call (this=0x33a42e0, pCaller=0x33a40b8) at /build/aoo/src/playground/trunk/main/solver/400/unxlngx6/inc/tools/link.hxx:135
#39 0x00007f0a53ede589 in Control::ImplCallEventListenersAndHandler (this=0x33a40b8, nEvent=1102, rHandler=..., pCaller=0x33a40b8)
    at /build/aoo/src/playground/trunk/main/vcl/source/control/ctrl.cxx:384
#40 0x00007f0a53ec42d4 in Button::Click (this=0x33a40b8) at /build/aoo/src/playground/trunk/main/vcl/source/control/button.cxx:150
#41 0x00007f0a53ec8fb3 in PushButton::Tracking (this=0x33a40b8, rTEvt=...) at /build/aoo/src/playground/trunk/main/vcl/source/control/button.cxx:1430
#42 0x00007f0a5424d410 in Window::EndTracking (this=0x33a40b8, nFlags=0) at /build/aoo/src/playground/trunk/main/vcl/source/window/window2.cxx:764
#43 0x00007f0a5427db93 in ImplHandleMouseEvent (pWindow=0x3410718, nSVEvent=2, bMouseLeave=0 '\000', nX=622, nY=97, nMsgTime=34108627, nCode=1, nMode=3)
    at /build/aoo/src/playground/trunk/main/vcl/source/window/winproc.cxx:807
#44 0x00007f0a54283319 in ImplHandleSalMouseButtonUp (pWindow=0x3410718, pEvent=0x7fff36525970) at /build/aoo/src/playground/trunk/main/vcl/source/window/winproc.cxx:2086
#45 0x00007f0a54282543 in ImplWindowFrameProc (pWindow=0x3410718, nEvent=4, pEvent=0x7fff36525970) at /build/aoo/src/playground/trunk/main/vcl/source/window/winproc.cxx:2415
#46 0x00007f0a466980ab in SalFrame::CallCallback (this=0x2f526e8, nEvent=4, pEvent=0x7fff36525970) at /build/aoo/src/playground/trunk/main/vcl/inc/salframe.hxx:281
#47 0x00007f0a466ba058 in GtkSalFrame::signalButton (pEvent=0x2d6a470, frame=0x2f526e8) at /build/aoo/src/playground/trunk/main/vcl/unx/gtk/window/gtkframe.cxx:2678
#48 0x000000339a7426ec in _gtk_marshal_BOOLEAN__BOXED (closure=0x33fb130, return_value=0x7fff36525b10, n_param_values=<optimized out>, param_values=0x7fff36525bc0, 
    invocation_hint=<optimized out>, marshal_data=<optimized out>) at gtkmarshalers.c:86
#49 0x000000397620fa28 in g_closure_invoke (closure=0x33fb130, return_value=return_value@entry=0x7fff36525b10, n_param_values=2, param_values=param_values@entry=0x7fff36525bc0, 
    invocation_hint=invocation_hint@entry=0x7fff36525b60) at gclosure.c:777
#50 0x0000003976220a3d in signal_emit_unlocked_R (node=node@entry=0x20213d0, detail=detail@entry=0, instance=instance@entry=0x2c952d0, 
    emission_return=emission_return@entry=0x7fff36525c90, instance_and_params=instance_and_params@entry=0x7fff36525bc0) at gsignal.c:3584
#51 0x0000003976228462 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fff36525d58)
    at gsignal.c:3338
#52 0x0000003976228a72 in g_signal_emit (instance=instance@entry=0x2c952d0, signal_id=<optimized out>, detail=detail@entry=0) at gsignal.c:3384
#53 0x000000339a86a474 in gtk_widget_event_internal (widget=widget@entry=0x2c952d0, event=event@entry=0x2d6a470) at gtkwidget.c:5017
#54 0x000000339a86a749 in IA__gtk_widget_event (widget=widget@entry=0x2c952d0, event=event@entry=0x2d6a470) at gtkwidget.c:4814
#55 0x000000339a740934 in IA__gtk_propagate_event (widget=0x2c952d0, event=0x2d6a470) at gtkmain.c:2490
#56 0x000000339a740cfb in IA__gtk_main_do_event (event=0x2d6a470) at gtkmain.c:1685
#57 0x000000339ae5e2dc in gdk_event_dispatch (source=source@entry=0x14f14f0, callback=<optimized out>, user_data=<optimized out>) at gdkevents-x11.c:2403
#58 0x0000003973e47e06 in g_main_dispatch (context=0x14f15e0) at gmain.c:3054
#59 g_main_context_dispatch (context=context@entry=0x14f15e0) at gmain.c:3630
#60 0x0000003973e48158 in g_main_context_iterate (context=context@entry=0x14f15e0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3701
#61 0x0000003973e481fc in g_main_context_iteration (context=0x14f15e0, may_block=1) at gmain.c:3762
#62 0x00007f0a466979fc in GtkXLib::Yield (this=0x14b8288, bWait=true, bHandleAllCurrentEvents=false) at /build/aoo/src/playground/trunk/main/vcl/unx/gtk/app/gtkdata.cxx:874
#63 0x00007f0a46341f8a in X11SalInstance::Yield (this=0x14910e8, bWait=true, bHandleAllCurrentEvents=false)
    at /build/aoo/src/playground/trunk/main/vcl/unx/generic/app/salinst.cxx:278
#64 0x00007f0a53eaf5a5 in ImplYield (i_bWait=true, i_bAllEvents=false) at /build/aoo/src/playground/trunk/main/vcl/source/app/svapp.cxx:472
#65 0x00007f0a53eab69b in Application::Yield (i_bAllEvents=false) at /build/aoo/src/playground/trunk/main/vcl/source/app/svapp.cxx:506
#66 0x00007f0a53eab63d in Application::Execute () at /build/aoo/src/playground/trunk/main/vcl/source/app/svapp.cxx:449
#67 0x00007f0a579cbe37 in desktop::Desktop::Main (this=0x7fff36526800) at /build/aoo/src/playground/trunk/main/desktop/source/app/app.cxx:2225
#68 0x00007f0a53eb5036 in ImplSVMain () at /build/aoo/src/playground/trunk/main/vcl/source/app/svmain.cxx:193
#69 0x00007f0a53eb517f in SVMain () at /build/aoo/src/playground/trunk/main/vcl/source/app/svmain.cxx:230
#70 0x00007f0a57a004f0 in soffice_main () at /build/aoo/src/playground/trunk/main/desktop/source/app/sofficemain.cxx:45
#71 0x00000000004012a0 in sal_main () at main.c:31
#72 0x0000000000401285 in main (argc=1, argv=0x7fff365269b8) at main.c:30