src/Pure/System/isabelle_charset.scala

--- a/src/Pure/System/isabelle_charset.scala	Tue Feb 11 23:31:12 2025 +0100
+++ b/src/Pure/System/isabelle_charset.scala	Wed Feb 12 00:40:57 2025 +0100
@@ -8,9 +8,7 @@
 
 
 import java.util.{List => JList}
-import java.nio.Buffer
-import java.nio.{ByteBuffer, CharBuffer}
-import java.nio.charset.{Charset, CharsetDecoder, CharsetEncoder, CoderResult}
+import java.nio.charset.{Charset, CharsetDecoder, CharsetEncoder}
 import java.nio.charset.spi.CharsetProvider