crashtesting: still seeing occasional impl_notifyEvent_nothrow failures

e.g.:

#0  0x00007f5a3a5d45fc in comphelper::OInterfaceContainerHelper3<com::sun::star::document::XDocumentEventListener>::NotifySingleListener<com::sun::star::document::DocumentEvent>::operator()(com::sun::star::uno::Reference<com::sun::star::document::XDocumentEventListener> const&) const (this=this@entry=0x7f5a38ffd680, listener=empty uno::Reference) at include/comphelper/interfacecontainer3.hxx:253
#1  0x00007f5a3a5d9427 in comphelper::OInterfaceContainerHelper3<com::sun::star::document::XDocumentEventListener>::forEach<comphelper::OInterfaceContainerHelper3<com::sun::star::document::XDocumentEventListener>::NotifySingleListener<com::sun::star::document::DocumentEvent> >(comphelper::OInterfaceContainerHelper3<com::sun::star::document::XDocumentEventListener>::NotifySingleListener<com::sun::star::document::DocumentEvent> const&) (this=this@entry=0x7f5a3035ea08, func=...) at include/comphelper/interfacecontainer3.hxx:275
xListener = empty uno::Reference
iter = {rCont = @0x7f5a3035ea08, maData = {m_pimpl = 0x7f5a30132260}, nRemain = 1}
#2  0x00007f5a3a5d950e in comphelper::OInterfaceContainerHelper3<com::sun::star::document::XDocumentEventListener>::notifyEach<com::sun::star::document::DocumentEvent>(void (com::sun::star::document::XDocumentEventListener::*)(com::sun::star::document::DocumentEvent const&), com::sun::star::document::DocumentEvent const&) (this=this@entry=0x7f5a3035ea08, NotificationMethod=<optimized out>, Event=...) at include/comphelper/interfacecontainer3.hxx:290
#3  0x00007f5a3a5d39f9 in dbaccess::DocumentEventNotifier_Impl::impl_notifyEvent_nothrow(com::sun::star::document::DocumentEvent const&) (this=this@entry=0x7f5a3035e9c0, _rEvent=...) at dbaccess/source/core/dataaccess/documenteventnotifier.cxx:200
__func__ = "impl_notifyEvent_nothrow"
#4  0x00007f5a3a5d3b83 in dbaccess::DocumentEventNotifier_Impl::processEvent(comphelper::AnyEvent const&) (this=this@entry=0x7f5a3035e9c0, _rEvent=...) at dbaccess/source/core/dataaccess/documenteventnotifier.cxx:233
rEventHolder = <optimized out>
#5  0x00007f5a57cd95ba in comphelper::AsyncEventNotifierBase::execute() (this=this@entry=0x7f5a3010f670) at comphelper/source/misc/asyncnotification.cxx:139

so lets guard the OInterfaceIteratorHelper3 ctor.

might as well use empty() to return early then, and align
the OInterfaceIteratorHelper4 case with that.

Change-Id: I138841840e032e6524792fb75168ccabc666b34c
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/162127
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>
(cherry picked from commit dd8dad09097225726cbcd878d95d5bd0aacdf042)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/163101
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>

0 files changed, 0 insertions, 0 deletions