1 files changed, 13 insertions, 0 deletions
diff --git a/java/org/brotli/dec/Utils.java b/java/org/brotli/dec/Utils.java
index 3fb2bfa..cc4a9f0 100644
--- a/java/org/brotli/dec/Utils.java
+++ b/java/org/brotli/dec/Utils.java
@@ -10,6 +10,7 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.UnsupportedEncodingException;
 import java.nio.Buffer;
+import java.nio.ByteBuffer;
 
 /**
  * A set of utility methods.
@@ -88,6 +89,18 @@ final class Utils {
     }
   }
 
+  static ByteBuffer asReadOnlyBuffer(ByteBuffer src) {
+    return src.asReadOnlyBuffer();
+  }
+
+  static int isReadOnly(ByteBuffer src) {
+    return src.isReadOnly() ? 1 : 0;
+  }
+
+  static int isDirect(ByteBuffer src) {
+    return src.isDirect() ? 1 : 0;
+  }
+
   // Crazy pills factory: code compiled for JDK8 does not work on JRE9.
   static void flipBuffer(Buffer buffer) {
     buffer.flip();