fix for date-time and faults

Author: arcuri82

core/src/main/kotlin/org/evomaster/core/problem/enterprise/service/WFCReportWriter.kt

@@ -55,11 +55,14 @@ class WFCReportWriter {
                     val faultIds = (ea.result as EnterpriseActionResult)
                         .getFaults()
                         .map { FaultCategoryId().apply { code = it.category.code; context = it.context} }
-                    val ff = FoundFault()
-                    ff.testCaseId = testId
-                    ff.operationId = ea.action.getName()
-                    ff.faultCategories = faultIds.toSet()
-                    faults.foundFaults.add(ff)
+
+                    if(faultIds.isNotEmpty()) {
+                        val ff = FoundFault()
+                        ff.testCaseId = testId
+                        ff.operationId = ea.action.getName()
+                        ff.faultCategories = faultIds.toSet()
+                        faults.foundFaults.add(ff)
+                    }
                 }
 
                 val tc = TestCase()

wfc/pom.xml

@@ -69,6 +69,10 @@
                 <version>1.2.2</version>
                 <configuration>
                     <sourceType>yamlschema</sourceType>
+                    <useJodaDates>false</useJodaDates>
+                    <formatDateTimes>true</formatDateTimes>
+                    <formatDates>true</formatDates>
+                    <formatTimes>true</formatTimes>
                 </configuration>
                 <executions>
                     <execution>