Update build.gradle to always use Java 14

.idea/misc.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
   <component name="ProjectKey">
     <option name="state" value="project://e2804f05-5315-4fc6-a121-c522a6c26470" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_15" default="true" project-jdk-name="15" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_14" default="true" project-jdk-name="14" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file

.idea/modules.xml

-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/tasc.iml" filepath="$PROJECT_DIR$/tasc.iml" />
-    </modules>
-  </component>
-</project>
\ No newline at end of file

build.gradle

@@ -22,6 +22,12 @@ dependencies {
 
 }
 
+java {
+    toolchain {
+        languageVersion.set(JavaLanguageVersion.of(14))
+    }
+}
+
 test {
     useJUnitPlatform()
     finalizedBy("jacocoTestReport")

tasc.iml

 <?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>
\ No newline at end of file
+<module type="JAVA_MODULE" version="4" />
\ No newline at end of file