change return type of all doProcess methods to void

Author: PhilippSalvisberg

sqldev/src/main/java/org/utplsql/sqldev/runner/UtplsqlRunner.java

@@ -153,23 +153,21 @@ private void initRun() {
         panel.update(reporterId);
     }
 
-    private Object doProcess(final PreRunEvent event) {
+    private void doProcess(final PreRunEvent event) {
         run.setTotalNumberOfTests(event.getTotalNumberOfTests());
         run.put(event.getItems());
         run.setStatus(UtplsqlResources.getString("RUNNER_RUNNING_TEXT"));
         panel.update(reporterId);
-        return null;
     }
 
-    private Object doProcess(final PostRunEvent event) {
+    private void doProcess(final PostRunEvent event) {
         run.setStartTime(event.getStartTime());
         run.setEndTime(event.getEndTime());
         run.setExecutionTime(event.getExecutionTime());
         run.setErrorStack(event.getErrorStack());
         run.setServerOutput(event.getServerOutput());
         run.setStatus(UtplsqlResources.getString("RUNNER_FINNISHED_TEXT"));
         panel.update(reporterId);
-        return null;
     }
 
     private void doProcess(final PreSuiteEvent event) {