--- a/src/jdk.compiler/share/classes/com/sun/tools/javac/tree/Pretty.java	Mon Oct 21 15:11:44 2019 +0200
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/tree/Pretty.java	Mon Oct 21 15:38:26 2019 +0200
@@ -27,7 +27,6 @@
 
 import java.io.*;
 
-import com.sun.source.tree.CaseTree.CaseKind;
 import com.sun.source.tree.MemberReferenceTree.ReferenceMode;
 import com.sun.source.tree.ModuleTree.ModuleKind;
 import com.sun.tools.javac.code.*;