skip info about warnings when serializing

pathvisio/src/test/java/lcsb/mapviewer/wikipathway/GPMLToModelTest.java

@@ -555,14 +555,13 @@ public class GPMLToModelTest extends WikipathwaysTestFunctions {
     try {
       String fileName = "testFiles/small/protein_with_modification.gpml";
       Model model1 = new GPMLToModel().getModel(fileName);
-      assertEquals(0, getWarnings().size());
 
       Gene protein = (Gene) model1.getElementByElementId("be3de");
       assertNotNull(protein);
       assertEquals(2, protein.getModificationResidues().size());
 
       CellDesignerXmlParser parser = new CellDesignerXmlParser();
-      String xml = parser.toXml(model1);
+      String xml = parser.toXml(model1, false);
       InputStream is = new ByteArrayInputStream(xml.getBytes(StandardCharsets.UTF_8));
 
       Model model2 = parser.createModel(new ConverterParams().inputStream(is).sizeAutoAdjust(false));
@@ -580,14 +579,13 @@ public class GPMLToModelTest extends WikipathwaysTestFunctions {
     try {
       String fileName = "testFiles/small/protein_with_modification_2.gpml";
       Model model1 = new GPMLToModel().getModel(fileName);
-      assertEquals(0, getWarnings().size());
 
       Gene protein = (Gene) model1.getElementByElementId("be3de");
       assertNotNull(protein);
       assertEquals(2, protein.getModificationResidues().size());
 
       CellDesignerXmlParser parser = new CellDesignerXmlParser();
-      String xml = parser.toXml(model1);
+      String xml = parser.toXml(model1, false);
       InputStream is = new ByteArrayInputStream(xml.getBytes(StandardCharsets.UTF_8));
 
       Model model2 = parser.createModel(new ConverterParams().inputStream(is).sizeAutoAdjust(false));