Upgrade to Java 11

Author: rohithsh

swan-assist/build.gradle

@@ -1,13 +1,13 @@
 plugins {
     id 'java'
-    id 'org.jetbrains.intellij' version '1.8.0'
+    id 'org.jetbrains.intellij' version '1.8.1'
 }
 
 group 'de.fraunhofer'
 version '1.3'
 
-sourceCompatibility = 1.8
-
+sourceCompatibility = JavaVersion.VERSION_11
+targetCompatibility = JavaVersion.VERSION_11
 repositories {
     mavenCentral()
     mavenLocal()
@@ -20,6 +20,7 @@ dependencies {
     implementation 'org.slf4j:slf4j-api:1.7.29'
     implementation 'org.slf4j:slf4j-simple:1.7.29'
     implementation 'org.apache.commons:commons-lang3:3.0'
+    //implementation files('src/main/resources/Jar/swan.jar')
 }
 
 intellij {