diff --git a/runtime/src/main/java/org/capnproto/Data.java b/runtime/src/main/java/org/capnproto/Data.java
index 81cabb3..9dab3b0 100644
--- a/runtime/src/main/java/org/capnproto/Data.java
+++ b/runtime/src/main/java/org/capnproto/Data.java
@@ -82,7 +82,7 @@ public final class Data {
             return this.size;
         }
 
-        public ByteBuffer toByteBuffer() {
+        public ByteBuffer asByteBuffer() {
             ByteBuffer dup = this.buffer.asReadOnlyBuffer();
             dup.position(this.offset);
             ByteBuffer result = dup.slice();
@@ -110,6 +110,14 @@ public final class Data {
             this.size = size;
         }
 
+        public ByteBuffer asByteBuffer() {
+            ByteBuffer dup = this.buffer.duplicate();
+            dup.position(this.offset);
+            ByteBuffer result = dup.slice();
+            result.limit(this.size);
+            return result;
+        }
+
         public byte[] toArray() {
             ByteBuffer dup = this.buffer.duplicate();
             byte result[] = new byte[this.size];
diff --git a/runtime/src/main/java/org/capnproto/Text.java b/runtime/src/main/java/org/capnproto/Text.java
index d65c86a..fa67524 100644
--- a/runtime/src/main/java/org/capnproto/Text.java
+++ b/runtime/src/main/java/org/capnproto/Text.java
@@ -91,7 +91,7 @@ public final class Text {
             return this.size;
         }
 
-        public ByteBuffer toByteBuffer() {
+        public ByteBuffer asByteBuffer() {
             ByteBuffer dup = this.buffer.asReadOnlyBuffer();
             dup.position(this.offset);
             ByteBuffer result = dup.slice();
@@ -127,6 +127,14 @@ public final class Text {
             this.size = size;
         }
 
+        public ByteBuffer asByteBuffer() {
+            ByteBuffer dup = this.buffer.duplicate();
+            dup.position(this.offset);
+            ByteBuffer result = dup.slice();
+            result.limit(this.size);
+            return result;
+        }
+
         @Override
         public final String toString() {
             byte[] bytes = new byte[this.size];