diff --git a/src/java.base/share/classes/sun/nio/ch/SocketChannelImpl.java b/src/java.base/share/classes/sun/nio/ch/SocketChannelImpl.java
index a08308e240d47..d9836518d1878 100644
--- a/src/java.base/share/classes/sun/nio/ch/SocketChannelImpl.java
+++ b/src/java.base/share/classes/sun/nio/ch/SocketChannelImpl.java
@@ -1640,7 +1640,7 @@ public String toString() {
      * value differently.
      *
      * @implSpec
-     * The {@code skip} method implementation of this class creates a
+     * The {@code skip} method implementation of this class creates an off-heap
      * byte array and then repeatedly reads into it until {@code n} bytes
      * have been read or the end of the stream has been reached. Subclasses are
      * encouraged to provide a more efficient implementation of this method.
diff --git a/src/java.base/unix/classes/sun/nio/ch/SourceChannelImpl.java b/src/java.base/unix/classes/sun/nio/ch/SourceChannelImpl.java
index 303a2c59f0432..1b98498f44952 100644
--- a/src/java.base/unix/classes/sun/nio/ch/SourceChannelImpl.java
+++ b/src/java.base/unix/classes/sun/nio/ch/SourceChannelImpl.java
@@ -375,7 +375,7 @@ public long read(ByteBuffer[] dsts) throws IOException {
      * value differently.
      *
      * @implSpec
-     * The {@code skip} method implementation of this class creates a
+     * The {@code skip} method implementation of this class creates an off-heap
      * byte array and then repeatedly reads into it until {@code n} bytes
      * have been read or the end of the stream has been reached. Subclasses are
      * encouraged to provide a more efficient implementation of this method.
diff --git a/src/java.base/windows/classes/sun/nio/ch/SourceChannelImpl.java b/src/java.base/windows/classes/sun/nio/ch/SourceChannelImpl.java
index 62c2c7d0becc2..0b050ba0ed420 100644
--- a/src/java.base/windows/classes/sun/nio/ch/SourceChannelImpl.java
+++ b/src/java.base/windows/classes/sun/nio/ch/SourceChannelImpl.java
@@ -151,7 +151,7 @@ public long read(ByteBuffer[] dsts) throws IOException {
      * value differently.
      *
      * @implSpec
-     * The {@code skip} method implementation of this class creates a
+     * The {@code skip} method implementation of this class creates an off-heap
      * byte array and then repeatedly reads into it until {@code n} bytes
      * have been read or the end of the stream has been reached. Subclasses are
      * encouraged to provide a more efficient implementation of this method.