updated shadow, added test dependencies for jmh and junit

build.gradle

@@ -1,6 +1,6 @@
 plugins {
 	id 'java'
-    id 'com.github.johnrengelman.shadow' version '5.2.0'
+	id 'com.github.johnrengelman.shadow' version '6.0.0'
 }
 
 group 'me.clip'
@@ -29,8 +29,15 @@ dependencies {
 	implementation 'com.google.code.gson:gson:2.8.5'
 	implementation 'org.bstats:bstats-bukkit:1.5'
 	implementation 'me.rayzr522:jsonmessage:1.2.1'
+	
 	compileOnly 'org.spigotmc:spigot-api:1.16.1-R0.1-SNAPSHOT'
 	compileOnly 'org.jetbrains:annotations:19.0.0'
+	
+	testImplementation 'org.openjdk.jmh:jmh-core:1.23'
+	testImplementation 'org.openjdk.jmh:jmh-generator-annprocess:1.23'
+	
+	testCompile "org.junit.jupiter:junit-jupiter-engine:5.6.2"
+	testRuntime "org.junit.jupiter:junit-jupiter-engine:5.6.2"
 }
 
 import org.apache.tools.ant.filters.ReplaceTokens
@@ -49,3 +56,12 @@ shadowJar {
 	relocate "com.google.gson", "me.clip.placeholderapi.libs.gson"
 	relocate "me.rayzr522.jsonmessage", "me.clip.placeholderapi.libs.jsonmessage"
 }
+
+test {
+	useJUnitPlatform()
+}
+
+sourceSets {
+	test.compileClasspath += configurations.compileOnly
+	test.runtimeClasspath += configurations.compileOnly
+}