add gitignore

.gitignore

@@ -4,6 +4,7 @@ target/
 !**/src/test/**/target/
 
 ### IntelliJ IDEA ###
+.idea/gitmisc.xml
 .idea/encodings.xml
 .idea/**
 .idea/modules.xml

.idea/misc.xml

@@ -10,7 +10,7 @@
       </list>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file