diff -auNr maven-resolver-1.6.1/maven-resolver-connector-basic/src/main/java/org/eclipse/aether/connector/basic/ChecksumCalculator.java maven-resolver-1.6.1-new/maven-resolver-connector-basic/src/main/java/org/eclipse/aether/connector/basic/ChecksumCalculator.java
--- maven-resolver-1.6.1/maven-resolver-connector-basic/src/main/java/org/eclipse/aether/connector/basic/ChecksumCalculator.java	2020-10-02 18:03:58.000000000 +0800
+++ maven-resolver-1.6.1-new/maven-resolver-connector-basic/src/main/java/org/eclipse/aether/connector/basic/ChecksumCalculator.java	2020-12-29 15:47:39.477914257 +0800
@@ -23,6 +23,7 @@
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
@@ -164,8 +165,8 @@
                 {
                     read -= total - dataOffset;
                 }
-                buffer.rewind();
-                buffer.limit( read );
+                ((Buffer)buffer).rewind();
+                ((Buffer)buffer).limit( read );
                 update( buffer );
             }
 
@@ -199,9 +200,9 @@
     {
         for ( Checksum checksum : checksums )
         {
-            data.mark();
+            ((Buffer)data).mark();
             checksum.update( data );
-            data.reset();
+            ((Buffer)data).reset();
         }
     }
 
diff -auNr maven-resolver-1.6.1/maven-resolver-impl/src/main/java/org/eclipse/aether/internal/impl/DefaultFileProcessor.java maven-resolver-1.6.1-new/maven-resolver-impl/src/main/java/org/eclipse/aether/internal/impl/DefaultFileProcessor.java
--- maven-resolver-1.6.1/maven-resolver-impl/src/main/java/org/eclipse/aether/internal/impl/DefaultFileProcessor.java	2020-10-02 18:03:58.000000000 +0800
+++ maven-resolver-1.6.1-new/maven-resolver-impl/src/main/java/org/eclipse/aether/internal/impl/DefaultFileProcessor.java	2020-12-29 15:48:48.477927402 +0800
@@ -25,6 +25,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.nio.charset.StandardCharsets;
 
@@ -229,8 +230,8 @@
             {
                 try
                 {
-                    buffer.rewind();
-                    buffer.limit( bytes );
+                    ((Buffer)buffer).rewind();
+                    ((Buffer)buffer).limit( bytes );
                     listener.progressed( buffer );
                 }
                 catch ( Exception e )
diff -auNr maven-resolver-1.6.1/maven-resolver-spi/src/main/java/org/eclipse/aether/spi/connector/transport/AbstractTransporter.java maven-resolver-1.6.1-new/maven-resolver-spi/src/main/java/org/eclipse/aether/spi/connector/transport/AbstractTransporter.java
--- maven-resolver-1.6.1/maven-resolver-spi/src/main/java/org/eclipse/aether/spi/connector/transport/AbstractTransporter.java	2020-10-02 18:03:58.000000000 +0800
+++ maven-resolver-1.6.1-new/maven-resolver-spi/src/main/java/org/eclipse/aether/spi/connector/transport/AbstractTransporter.java	2020-12-29 15:49:51.541939414 +0800
@@ -22,6 +22,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.util.concurrent.atomic.AtomicBoolean;
 
@@ -251,8 +252,8 @@
         for ( int read = is.read( array ); read >= 0; read = is.read( array ) )
         {
             os.write( array, 0, read );
-            buffer.rewind();
-            buffer.limit( read );
+            ((Buffer)buffer).rewind();
+            ((Buffer)buffer).limit( read );
             listener.transportProgressed( buffer );
         }
     }
diff -auNr maven-resolver-1.6.1/maven-resolver-test-util/src/main/java/org/eclipse/aether/internal/test/util/TestFileProcessor.java maven-resolver-1.6.1-new/maven-resolver-test-util/src/main/java/org/eclipse/aether/internal/test/util/TestFileProcessor.java
--- maven-resolver-1.6.1/maven-resolver-test-util/src/main/java/org/eclipse/aether/internal/test/util/TestFileProcessor.java	2020-10-02 18:03:58.000000000 +0800
+++ maven-resolver-1.6.1-new/maven-resolver-test-util/src/main/java/org/eclipse/aether/internal/test/util/TestFileProcessor.java	2020-12-29 15:50:56.921951864 +0800
@@ -26,6 +26,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.nio.charset.StandardCharsets;
 
@@ -218,8 +219,8 @@
             {
                 try
                 {
-                    buffer.rewind();
-                    buffer.limit( bytes );
+                    ((Buffer)buffer).rewind();
+                    ((Buffer)buffer).limit( bytes );
                     listener.progressed( buffer );
                 }
                 catch ( Exception e )