Implemented toString() (#320).

src/main/java/org/gitlab4j/api/webhook/NoteEvent.java

@@ -7,6 +7,7 @@ import javax.xml.bind.annotation.XmlAccessorType;
 
 import org.gitlab4j.api.models.Diff;
 import org.gitlab4j.api.models.User;
+import org.gitlab4j.api.utils.JacksonJson;
 import org.gitlab4j.api.utils.JacksonJsonEnumHelper;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
@@ -260,4 +261,9 @@ public class NoteEvent extends AbstractEvent {
             this.url = url;
         }
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/webhook/PipelineEvent.java

@@ -8,6 +8,7 @@ import javax.xml.bind.annotation.XmlAccessorType;
 
 import org.gitlab4j.api.models.ArtifactsFile;
 import org.gitlab4j.api.models.User;
+import org.gitlab4j.api.utils.JacksonJson;
 
 @XmlAccessorType(XmlAccessType.FIELD)
 public class PipelineEvent extends AbstractEvent {
@@ -268,4 +269,9 @@ public class PipelineEvent extends AbstractEvent {
             this.duration = duration;
         }
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/webhook/PushEvent.java

@@ -4,6 +4,8 @@ package org.gitlab4j.api.webhook;
 import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
 @XmlAccessorType(XmlAccessType.FIELD)
 public class PushEvent extends AbstractPushEvent implements Event {
 
@@ -20,4 +22,9 @@ public class PushEvent extends AbstractPushEvent implements Event {
             throw new RuntimeException("Invalid object_kind (" + objectKind + "), must be '" + OBJECT_KIND + "'");
         }
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/webhook/TagPushEvent.java

@@ -4,6 +4,8 @@ package org.gitlab4j.api.webhook;
 import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 
+import org.gitlab4j.api.utils.JacksonJson;
+
 @XmlAccessorType(XmlAccessType.FIELD)
 public class TagPushEvent extends AbstractPushEvent implements Event {
 
@@ -19,4 +21,9 @@ public class TagPushEvent extends AbstractPushEvent implements Event {
         if (!OBJECT_KIND.equals(objectKind))
             throw new RuntimeException("Invalid object_kind (" + objectKind + "), must be '" + OBJECT_KIND + "'");
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }

src/main/java/org/gitlab4j/api/webhook/WikiPageEvent.java

@@ -4,6 +4,7 @@ import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 
 import org.gitlab4j.api.models.User;
+import org.gitlab4j.api.utils.JacksonJson;
 
 @XmlAccessorType(XmlAccessType.FIELD)
 public class WikiPageEvent extends AbstractEvent {
@@ -174,4 +175,9 @@ public class WikiPageEvent extends AbstractEvent {
             this.url = url;
         }
     }
+
+    @Override
+    public String toString() {
+        return (JacksonJson.toJsonString(this));
+    }
 }