tdf#42982 add detail exception reason for UnoControls

Change-Id: Ia62a0015d68fe819113322e27b93054d38d98aea
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/88996
Tested-by: Jenkins
Reviewed-by: Michael Stahl <michael.stahl@cib.de>
diff --git a/UnoControls/source/controls/OConnectionPointHelper.cxx b/UnoControls/source/controls/OConnectionPointHelper.cxx
index a7f18ea..f2c9942 100644
--- a/UnoControls/source/controls/OConnectionPointHelper.cxx
+++ b/UnoControls/source/controls/OConnectionPointHelper.cxx
@@ -105,8 +105,7 @@ Type SAL_CALL OConnectionPointHelper::getConnectionType()
    // Set default return value, if method failed.
    if ( !impl_LockContainer() )
    {
        // Container not exist! It's a runtime error.
        throw RuntimeException();
        throw RuntimeException("Container does not exist!");
    }

    // If container reference valid, return right type of supported interfaces of THIS connectionpoint.
@@ -149,8 +148,7 @@ void SAL_CALL OConnectionPointHelper::advise( const Reference< XInterface >& xLi
    // Operation is permitted only, if reference to container is valid!
    if ( !impl_LockContainer() )
    {
        // Container not exist! It's a runtime error.
        throw RuntimeException();
        throw RuntimeException("Container does not exist!");
    }
    // Forward it to OConnectionPointHelperContainer!
    m_pContainerImplementation->advise( m_aInterfaceType, xListener );
@@ -167,8 +165,7 @@ void SAL_CALL OConnectionPointHelper::unadvise( const Reference< XInterface >& x
    // Operation is permitted only, if reference to container is valid!
    if ( !impl_LockContainer() )
    {
        // Container not exist! It's a runtime error.
        throw RuntimeException();
        throw RuntimeException("Container does not exist!");

    }
    // Forward it to OConnectionPointHelperContainer!
@@ -186,8 +183,7 @@ Sequence< Reference< XInterface > > SAL_CALL OConnectionPointHelper::getConnecti
    // Operation is permitted only, if reference to container is valid!
    if ( !impl_LockContainer() )
    {
        // Container not exist! It's a runtime error.
        throw RuntimeException();
        throw RuntimeException("Container does not exist!");
    }
    // Set default return value, if method failed.
    Sequence< Reference< XInterface > > seqReturnConnections;