Fix #202

Author: cowtowncoder

protobuf/src/main/java/com/fasterxml/jackson/dataformat/protobuf/ProtobufParser.java

@@ -699,7 +699,7 @@ private boolean _checkEnd() throws IOException
     private JsonToken _handleRootKey(int tag) throws IOException
     {
         int wireType = (tag & 0x7);
-        int id = (tag >> 3);
+        final int id = (tag >> 3);
 
         ProtobufField f;
         if (_currentField != null) {
@@ -997,11 +997,11 @@ public boolean nextFieldName(SerializableString sstr) throws IOException
                     return false;
                 }
             }
-            int tag = _decodeVInt();
+            final int tag = _decodeVInt();
             // inlined _handleRootKey()
 
-            int wireType = (tag & 0x7);
-            int id = (tag >> 3);
+            final int wireType = (tag & 0x7);
+            final int id = (tag >> 3);
 
             ProtobufField f = _findField(id);
             if (f == null) {
@@ -1033,11 +1033,11 @@ public boolean nextFieldName(SerializableString sstr) throws IOException
                 _currToken = JsonToken.END_OBJECT;
                 return false;
             }
-            int tag = _decodeVInt();
+            final int tag = _decodeVInt();
             // inlined '_handleNestedKey()'
 
-            int wireType = (tag & 0x7);
-            int id = (tag >> 3);
+            final int wireType = (tag & 0x7);
+            final int id = (tag >> 3);
 
             ProtobufField f = _findField(id);
             if (f == null) {
@@ -1078,18 +1078,20 @@ public String nextFieldName() throws IOException
                     return null;
                 }
             }
-            int tag = _decodeVInt();
+            final int tag = _decodeVInt();
             // inlined _handleRootKey()
 
             int wireType = (tag & 0x7);
-            int id = (tag >> 3);
+            final int id = (tag >> 3);
 
             ProtobufField f = _findField(id);
             if (f == null) {
                 if (_skipUnknownField(id, wireType) != JsonToken.FIELD_NAME) {
                     return null;
                 }
                 // sub-optimal as skip method already set it, but:
+                // [dataformats-binary#202]: need to reset after skipping
+                wireType = _currentField.wireType;
             }
             String name = _currentField.name;
             _parsingContext.setCurrentName(name);
@@ -1115,18 +1117,20 @@ public String nextFieldName() throws IOException
                 _currToken = JsonToken.END_OBJECT;
                 return null;
             }
-            int tag = _decodeVInt();
+            final int tag = _decodeVInt();
             // inlined '_handleNestedKey()'
 
             int wireType = (tag & 0x7);
-            int id = (tag >> 3);
+            final int id = (tag >> 3);
 
             ProtobufField f = _findField(id);
             if (f == null) {
                 if (_skipUnknownField(id, wireType) != JsonToken.FIELD_NAME) {
                     return null;
                 }
                 // sub-optimal as skip method already set it, but:
+                // [dataformats-binary#202]: need to reset after skipping
+                wireType = _currentField.wireType;
             }
             final String name = _currentField.name;
             _parsingContext.setCurrentName(name);
@@ -2111,7 +2115,6 @@ protected ByteArrayBuilder _getByteArrayBuilder() {
         return _byteArrayBuilder;
     }
 
-    @SuppressWarnings("deprecation")
     protected void _closeInput() throws IOException {
         if (_inputStream != null) {
             if (_ioContext.isResourceManaged() || isEnabled(JsonParser.Feature.AUTO_CLOSE_SOURCE)) {

protobuf/src/test/java/com/fasterxml/jackson/dataformat/protobuf/failing/ReadUnknownFields202Test.java renamed to protobuf/src/test/java/com/fasterxml/jackson/dataformat/protobuf/ReadUnknownFields202Test.java

@@ -1,4 +1,4 @@
-package com.fasterxml.jackson.dataformat.protobuf.failing;
+package com.fasterxml.jackson.dataformat.protobuf;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.core.JsonParser;
@@ -123,7 +123,6 @@ public void testV1toV0() throws Exception {
         TestMessageV0 messageV0 = MAPPER
                 .readerFor(TestMessageV0.class)
                 .with(schemaV0)
-                .with(JsonParser.Feature.IGNORE_UNDEFINED)
                 .readValue(protobufData);
 
         assertEquals(messageV1.getId(), messageV0.getId());

release-notes/VERSION-2.x

@@ -8,6 +8,11 @@ Project: jackson-datatypes-binaryModules:
 === Releases ===
 ------------------------------------------------------------------------
 
+2.10.4 (not yet released)
+
+#202: Parsing a protobuf message doesn't properly skip unknown fields
+ (reported by dmitry-timin@github)
+
 2.10.3 (03-Mar-2020)
 
 No changes since 2.10.2