Fix NullPointerException

Author: PeteGoo

tcslackbuildnotifier-core/src/main/java/slacknotifications/teamcity/SlackNotificationListener.java

@@ -12,6 +12,7 @@
 import slacknotifications.SlackNotification;
 import slacknotifications.teamcity.payload.SlackNotificationPayloadManager;
 import slacknotifications.teamcity.settings.SlackNotificationConfig;
+import slacknotifications.teamcity.settings.SlackNotificationContentConfig;
 import slacknotifications.teamcity.settings.SlackNotificationMainSettings;
 import slacknotifications.teamcity.settings.SlackNotificationProjectSettings;
 
@@ -74,20 +75,20 @@ public void getFromConfig(SlackNotification slackNotification, SlackNotification
         slackNotification.setShowElapsedBuildTime(myMainSettings.getShowElapsedBuildTime());
         slackNotification.setShowCommits(myMainSettings.getShowCommits());
         slackNotification.setShowCommitters(myMainSettings.getShowCommitters());
-        slackNotification.setShowFailureReason(myMainSettings.getShowFailureReason());
+        slackNotification.setShowFailureReason(myMainSettings.getShowFailureReason() == null ? SlackNotificationContentConfig.DEFAULT_SHOW_FAILURE_REASON : myMainSettings.getShowFailureReason());
         slackNotification.setMaxCommitsToDisplay(myMainSettings.getMaxCommitsToDisplay());
         slackNotification.setMentionChannelEnabled(slackNotificationConfig.getMentionChannelEnabled());
 		slackNotification.setMentionSlackUserEnabled(slackNotificationConfig.getMentionSlackUserEnabled());
-        slackNotification.setShowElapsedBuildTime(myMainSettings.getShowFailureReason());
-        if(slackNotificationConfig.getContent().isEnabled()) {
+        slackNotification.setShowElapsedBuildTime(myMainSettings.getShowElapsedBuildTime());
+        if(slackNotificationConfig.getContent() != null && slackNotificationConfig.getContent().isEnabled()) {
             slackNotification.setBotName(slackNotificationConfig.getContent().getBotName());
             slackNotification.setIconUrl(slackNotificationConfig.getContent().getIconUrl());
             slackNotification.setMaxCommitsToDisplay(slackNotificationConfig.getContent().getMaxCommitsToDisplay());
             slackNotification.setShowBuildAgent(slackNotificationConfig.getContent().getShowBuildAgent());
             slackNotification.setShowElapsedBuildTime(slackNotificationConfig.getContent().getShowElapsedBuildTime());
             slackNotification.setShowCommits(slackNotificationConfig.getContent().getShowCommits());
             slackNotification.setShowCommitters(slackNotificationConfig.getContent().getShowCommitters());
-            slackNotification.setShowFailureReason(slackNotificationConfig.getContent().getShowFailureReason());
+            slackNotification.setShowFailureReason(slackNotificationConfig.getContent().getShowFailureReason() == null ? SlackNotificationContentConfig.DEFAULT_SHOW_FAILURE_REASON : slackNotificationConfig.getContent().getShowFailureReason());
         }
 		Loggers.ACTIVITIES.debug("SlackNotificationListener :: SlackNotification proxy set to "
 				+ slackNotification.getProxyHost() + " for " + slackNotificationConfig.getChannel());

tcslackbuildnotifier-core/src/main/java/slacknotifications/teamcity/payload/content/SlackNotificationPayloadContent.java

@@ -73,8 +73,8 @@ public class SlackNotificationPayloadContent {
     private String color;
     private long elapsedTime;
     private boolean isComplete;
-    private ArrayList<String> failedBuildMessages;
-    private ArrayList<String> failedTestNames;
+    private ArrayList<String> failedBuildMessages = new ArrayList<String>();
+    private ArrayList<String> failedTestNames = new ArrayList<String>();
 
     public SlackNotificationPayloadContent(){
 

tcslackbuildnotifier-core/src/main/java/slacknotifications/teamcity/settings/SlackNotificationMainConfig.java

@@ -411,6 +411,9 @@ public SlackNotificationProxyConfig getProxyConfig() {
     }
 
     public SlackNotificationContentConfig getContent() {
+        if(content == null){
+            this.content = new SlackNotificationContentConfig();
+        }
         return content;
     }
 }