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-rw-r--r--java/src/main/java/com/google/protobuf/nano/UnknownFieldData.java4
1 files changed, 4 insertions, 0 deletions
diff --git a/java/src/main/java/com/google/protobuf/nano/UnknownFieldData.java b/java/src/main/java/com/google/protobuf/nano/UnknownFieldData.java
index 2032e1a..bf34bed 100644
--- a/java/src/main/java/com/google/protobuf/nano/UnknownFieldData.java
+++ b/java/src/main/java/com/google/protobuf/nano/UnknownFieldData.java
@@ -42,6 +42,10 @@ import java.util.Arrays;
final class UnknownFieldData {
final int tag;
+ /**
+ * Important: this should be treated as immutable, even though it's possible
+ * to change the array values.
+ */
final byte[] bytes;
UnknownFieldData(int tag, byte[] bytes) {