Fix compile error due to refactoring in prisma-core.

tools.descartes.prisma.agent.wildfly/src/main/java/tools/descartes/prisma/agent/wildfly/service/ModelExtractionService.java

@@ -258,7 +258,7 @@ public class ModelExtractionService extends AgentController implements Service<M
 
 		// Check for existing runtime environment representing the WildFly
 		// container
-		for (Container curContainer : applicationScope.getContainer()) {
+		for (Container curContainer : applicationScope.getContainers()) {
 			if (curContainer instanceof RuntimeEnvironment) {
 				addNewRuntimeEnvironment((RuntimeEnvironment) curContainer);
 			}