checkstyle and pmd fixes

Author: piotrkwiecinski

src/com/magento/idea/magento2plugin/actions/generation/CreateAnObserverAction.java

@@ -30,7 +30,8 @@
 import com.magento.idea.magento2plugin.project.Settings;
 import org.jetbrains.annotations.NotNull;
 
-public class CreateAnObserverAction extends DumbAwareAction implements ActionUpdateThreadAware {
+public class CreateAnObserverAction extends DumbAwareAction
+        implements ActionUpdateThreadAware {
 
     public static final String ACTION_NAME = "Create a new Observer for this event";
     public static final String ACTION_DESCRIPTION = "Create a new Magento 2 Observer";

src/com/magento/idea/magento2plugin/actions/generation/InjectAViewModelAction.java

@@ -105,7 +105,7 @@ private XmlTag getElement(final @NotNull AnActionEvent event) {
         if (xmlTag == null) {
             return null;
         }
-        XmlTag resultTag;
+        final XmlTag resultTag;
 
         if (CommonXml.ATTRIBUTE_ARGUMENTS.equals(xmlTag.getName())) {
             resultTag = PsiTreeUtil.getParentOfType(xmlTag, XmlTag.class);

src/com/magento/idea/magento2plugin/actions/generation/OverrideClassByAPreferenceAction.java

@@ -21,7 +21,8 @@
 import com.magento.idea.magento2plugin.util.GetFirstClassOfFile;
 import org.jetbrains.annotations.NotNull;
 
-public class OverrideClassByAPreferenceAction extends DumbAwareAction implements ActionUpdateThreadAware {
+public class OverrideClassByAPreferenceAction extends DumbAwareAction
+        implements ActionUpdateThreadAware {
     public static final String ACTION_NAME = "Override this class by a new Preference";
     public static final String ACTION_DESCRIPTION = "Create a new Magento 2 Preference";
     public static final String INTERFACE_ACTION = "Override this interface by a new Preference";