[JENKINS-29328] NullPointerException parsing a Background section that has a Before hook.

src/main/java/org/jenkinsci/plugins/cucumber/jsontestsupport/GherkinCallback.java

@@ -39,6 +39,7 @@
 import java.io.File;
 import java.io.IOException;
 import java.util.List;
+import java.util.ArrayList;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
@@ -64,6 +65,8 @@ class GherkinCallback implements Formatter, Reporter {
 
 	private CucumberTestResult testResult;
 
+	private List<BeforeAfterResult> backgroundBeforeAfterResults = null;
+
 
 	GherkinCallback(CucumberTestResult testResult) {
 		this.testResult = testResult;
@@ -113,6 +116,7 @@ public void background(Background background) {
 			throw new CucumberModelException("Background: {" + background.getName() + "} received before previous background: {" + currentBackground.getName()+ "} handled");
 		}
 		currentBackground = new BackgroundResult(background);
+		backgroundBeforeAfterResults = new ArrayList<BeforeAfterResult>();
 	}
 
 
@@ -130,6 +134,12 @@ public void scenario(Scenario scenario) {
 		currentScenarioResult = new ScenarioResult(scenario, currentBackground);
 		currentBackground = null;
 		currentFeatureResult.addScenarioResult(currentScenarioResult);
+
+		if (backgroundBeforeAfterResults != null) {
+			for (BeforeAfterResult beforeAfterResult : backgroundBeforeAfterResults) {
+				currentScenarioResult.addBeforeResult(beforeAfterResult);
+			}
+		}
 	}
 
 
@@ -218,7 +228,12 @@ public void before(Match match, Result result) {
 			LOG.log(Level.FINE, "rep        result : " + result.getErrorMessage());
 			LOG.log(Level.FINE, "rep        result : " + result.getError());
 		}
-		currentScenarioResult.addBeforeResult(new BeforeAfterResult(match, result));
+
+		if (currentScenarioResult != null) {
+			currentScenarioResult.addBeforeResult(new BeforeAfterResult(match, result));
+		} else {
+			backgroundBeforeAfterResults.add(new BeforeAfterResult(match, result));
+		}
 	}
 
 

src/test/resources/org/jenkinsci/plugins/cucumber/jsontestsupport/ScenarioResultTest/backgroundFailure.json

@@ -17,6 +17,17 @@
         "name": "A Calculator",
         "keyword": "Background",
         "line": 4,
+        "before":[
+          {
+            "match":{
+              "location":"SomeLocation"
+            },
+            "result":{
+              "status":"passed",
+              "duration":0
+            }
+          }
+        ],
         "steps": [
           {
             "result": {