Fixed exception error

.idea/workspace.xml

 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="24656c49-611f-4613-8dfe-095c8d9c4000" name="Default Changelist" comment="">
-      <change beforePath="$PROJECT_DIR$/src/main/java/AccountApp.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/AccountApp.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/pom.xml" beforeDir="false" afterPath="$PROJECT_DIR$/pom.xml" afterDir="false" />
     </list>
     <ignored path="$PROJECT_DIR$/out/" />
     <ignored path="$PROJECT_DIR$/target/" />
     <session id="1578324603">
       <usages-collector id="statistics.lifecycle.project">
         <counts>
+          <entry key="project.closed" value="2" />
+          <entry key="project.open.time.18" value="1" />
+          <entry key="project.open.time.20" value="1" />
           <entry key="project.open.time.6" value="1" />
-          <entry key="project.opened" value="1" />
+          <entry key="project.opened" value="3" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.extensions.open">
     </session>
   </component>
   <component name="FileEditorManager">
-    <leaf>
+    <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
       <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/pom.xml">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="375">
-              <caret line="25" column="74" selection-start-line="25" selection-start-column="74" selection-end-line="25" selection-end-column="74" />
+            <state relative-caret-position="390">
+              <caret line="26" column="16" lean-forward="true" selection-start-line="26" selection-start-column="16" selection-end-line="26" selection-end-column="16" />
             </state>
           </provider>
         </entry>
       <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/src/main/java/Account.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="375">
+            <state relative-caret-position="330">
               <caret line="25" selection-start-line="25" selection-end-line="25" />
               <folding>
                 <element signature="imports" expanded="true" />
       <file pinned="false" current-in-tab="true">
         <entry file="file://$PROJECT_DIR$/src/main/java/AccountApp.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="135">
-              <caret line="9" lean-forward="true" selection-start-line="9" selection-end-line="9" />
+            <state relative-caret-position="465">
+              <caret line="31" column="41" lean-forward="true" selection-start-line="31" selection-start-column="41" selection-end-line="31" selection-end-column="41" />
               <folding>
                 <element signature="imports" expanded="true" />
               </folding>
   <component name="IdeDocumentHistory">
     <option name="CHANGED_PATHS">
       <list>
-        <option value="$PROJECT_DIR$/pom.xml" />
         <option value="$PROJECT_DIR$/src/main/java/Account.java" />
         <option value="$PROJECT_DIR$/src/main/java/AccountApp.java" />
+        <option value="$PROJECT_DIR$/pom.xml" />
       </list>
     </option>
   </component>
       <foldersAlwaysOnTop value="true" />
     </navigator>
     <panes>
+      <pane id="Scope" />
       <pane id="PackagesPane" />
       <pane id="ProjectPane">
         <subPane>
           <select />
         </subPane>
       </pane>
-      <pane id="Scope" />
     </panes>
   </component>
   <component name="PropertiesComponent">
     <property name="WebServerToolWindowFactoryState" value="false" />
     <property name="aspect.path.notification.shown" value="true" />
-    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1542234933200" />
+    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1542242948006" />
     <property name="nodejs_interpreter_path.stuck_in_default_project" value="undefined stuck path" />
     <property name="nodejs_npm_path_reset_for_default_project" value="true" />
     <property name="project.structure.last.edited" value="Modules" />
       <option name="number" value="Default" />
       <option name="presentableId" value="Default" />
       <updated>1542232515260</updated>
-      <workItem from="1542232517079" duration="2223000" />
+      <workItem from="1542232517079" duration="2272000" />
+      <workItem from="1542235072407" duration="35000" />
+      <workItem from="1542242747938" duration="199000" />
     </task>
     <servers />
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="2223000" />
+    <option name="totallyTimeSpent" value="2506000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="36" y="23" width="1621" height="958" extended-state="0" />
     <editor active="true" />
     <layout>
-      <window_info id="Image Layers" />
-      <window_info id="Designer" />
-      <window_info id="UI Designer" />
-      <window_info id="Capture Tool" />
-      <window_info id="Favorites" side_tool="true" />
-      <window_info content_ui="combo" id="Project" order="0" visible="true" weight="0.24952501" />
+      <window_info content_ui="combo" id="Project" order="0" visible="true" weight="0.25585812" />
       <window_info id="Structure" order="1" side_tool="true" weight="0.25" />
-      <window_info anchor="bottom" id="Messages" weight="0.3290993" />
-      <window_info anchor="bottom" id="Database Changes" show_stripe_button="false" />
-      <window_info anchor="bottom" id="Version Control" />
-      <window_info anchor="bottom" id="Terminal" />
-      <window_info anchor="bottom" id="Event Log" side_tool="true" />
+      <window_info id="Image Layers" order="2" />
+      <window_info id="Designer" order="3" />
+      <window_info id="UI Designer" order="4" />
+      <window_info id="Capture Tool" order="5" />
+      <window_info id="Favorites" order="6" side_tool="true" />
       <window_info anchor="bottom" id="Message" order="0" />
       <window_info anchor="bottom" id="Find" order="1" />
       <window_info active="true" anchor="bottom" id="Run" order="2" visible="true" weight="0.3290993" />
       <window_info anchor="bottom" id="Cvs" order="4" weight="0.25" />
       <window_info anchor="bottom" id="Inspection" order="5" weight="0.4" />
       <window_info anchor="bottom" id="TODO" order="6" />
-      <window_info anchor="right" id="Palette" />
-      <window_info anchor="right" id="Theme Preview" />
-      <window_info anchor="right" id="Capture Analysis" />
-      <window_info anchor="right" id="Palette&#9;" />
-      <window_info anchor="right" id="Database" />
-      <window_info anchor="right" id="Maven Projects" />
+      <window_info anchor="bottom" id="Version Control" order="7" />
+      <window_info anchor="bottom" id="Database Changes" order="8" show_stripe_button="false" />
+      <window_info anchor="bottom" id="Terminal" order="9" />
+      <window_info anchor="bottom" id="Event Log" order="10" side_tool="true" weight="0.3290993" />
+      <window_info anchor="bottom" id="Messages" order="11" weight="0.3290993" />
       <window_info anchor="right" id="Commander" internal_type="SLIDING" order="0" type="SLIDING" weight="0.4" />
       <window_info anchor="right" id="Ant Build" order="1" weight="0.25" />
       <window_info anchor="right" content_ui="combo" id="Hierarchy" order="2" weight="0.25" />
+      <window_info anchor="right" id="Palette" order="3" />
+      <window_info anchor="right" id="Capture Analysis" order="4" />
+      <window_info anchor="right" id="Database" order="5" />
+      <window_info anchor="right" id="Theme Preview" order="6" />
+      <window_info anchor="right" id="Palette&#9;" order="7" />
+      <window_info anchor="right" id="Maven Projects" order="8" />
     </layout>
   </component>
   <component name="TypeScriptGeneratedFilesManager">
     <option name="myLimit" value="2678400000" />
   </component>
   <component name="editorHistoryManager">
-    <entry file="jar://$MAVEN_REPOSITORY$/mysql/mysql-connector-java/5.1.6/mysql-connector-java-5.1.6.jar!/com/mysql/jdbc/Util.class">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="3075">
-          <caret line="233" selection-start-line="233" selection-end-line="233" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/pom.xml">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="375">
-          <caret line="25" column="74" selection-start-line="25" selection-start-column="74" selection-end-line="25" selection-end-column="74" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/src/main/java/Account.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="375">
+        <state relative-caret-position="330">
           <caret line="25" selection-start-line="25" selection-end-line="25" />
           <folding>
             <element signature="imports" expanded="true" />
         </state>
       </provider>
     </entry>
+    <entry file="jar://$MAVEN_REPOSITORY$/mysql/mysql-connector-java/5.1.6/mysql-connector-java-5.1.6.jar!/com/mysql/jdbc/Util.class">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="3075">
+          <caret line="233" selection-start-line="233" selection-end-line="233" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/pom.xml">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="390">
+          <caret line="26" column="16" lean-forward="true" selection-start-line="26" selection-start-column="16" selection-end-line="26" selection-end-column="16" />
+        </state>
+      </provider>
+    </entry>
     <entry file="file://$PROJECT_DIR$/src/main/java/AccountApp.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="135">
-          <caret line="9" lean-forward="true" selection-start-line="9" selection-end-line="9" />
+        <state relative-caret-position="465">
+          <caret line="31" column="41" lean-forward="true" selection-start-line="31" selection-start-column="41" selection-end-line="31" selection-end-column="41" />
           <folding>
             <element signature="imports" expanded="true" />
           </folding>

pom.xml

     <dependency>
         <groupId>mysql</groupId>
         <artifactId>mysql-connector-java</artifactId>
-        <version>5.1.6</version>
+        <version>8.0.12</version>
     </dependency>
     </dependencies>