Retain java 8 support

Author: ST-DDT

gradle.properties

@@ -5,9 +5,3 @@ org.gradle.caching=true
 org.gradle.vfs.watch=true
 org.gradle.daemon=true
 
-# for spotless java 16 compatibility: https://github.com/diffplug/spotless/issues/834
-org.gradle.jvmargs=--add-exports jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED \
-  --add-exports jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED \
-  --add-exports jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED \
-  --add-exports jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED \
-  --add-exports jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED