fdo#79676: Fix the Java UNO API test with regard to chart tests.

The Java tests rely on the "undocumented" behavior that, when loading an empty
chart document, the chart automaticallly created a "default chart" which is a
column chart with many of its properties filled.  Unfortunately this behavior
caused ugly side effects when loading documents with charts via flat ODF
filter.

I believe fixing the test this way is the right fix.

Change-Id: If3e6c8979da9d0731346ebeedc23c0d3363e83fd

qadevOOo/runner/util/SOfficeFactory.java

@@ -225,7 +225,12 @@ public class SOfficeFactory {
 
         if (oDoc != null) {
             DesktopTools.bringWindowToFront(oDoc);
-            return UnoRuntime.queryInterface(XChartDocument.class, oDoc);
+            XChartDocument xChartDoc = UnoRuntime.queryInterface(XChartDocument.class, oDoc);
+            // Create a default chart which many chart tests rely on.
+            com.sun.star.chart2.XChartDocument xCD2 =
+                UnoRuntime.queryInterface(com.sun.star.chart2.XChartDocument.class, oDoc);
+            xCD2.createDefaultChart();
+            return xChartDoc;
         } else {
             return null;
         }

sfx2/qa/complex/sfx2/undo/ChartDocumentTest.java

@@ -74,6 +74,10 @@ public class ChartDocumentTest implements DocumentTest
 
         // retrieve the chart model
         XChartDocument chartDoc = UnoRuntime.queryInterface( XChartDocument.class, shapeProps.getPropertyValue( "Model" ) );
+        // insert default chart for the test to use.
+        com.sun.star.chart2.XChartDocument xCD2 =
+            UnoRuntime.queryInterface(com.sun.star.chart2.XChartDocument.class, chartDoc);
+        xCD2.createDefaultChart();
         m_chartDocument = new OfficeDocument( i_orb, chartDoc );
 
         // actually activate the object