Hi Denis, thanks for reporting this. It seems to be a known bug:
https://github.com/google/protobuf/issues/826 It comes down to the fact
that in Java we represent tag numbers as ints (which are 32-bit signed
values), and the protoc compiler is generating a tag number that will fit
in an unsigned 32-bit integer but not in a signed Java int. Let me try and
see if I can tweak things to fix this.
On Fri, Sep 23, 2016 at 12:47 PM, Denis Vlah <vdiden2...@gmail.com> wrote:
> Hello everyone,
>
> I have generated the java classes from .proto file using the protoc.exe
> tool (latest version)
>
> Proto syntax version is 2.
>
> Original .proto file was generated from C# classes decorated with
> protobuf-net attributes.
>
> The java snippet with error:
>
> public static final class Object extends
> com.google.protobuf.GeneratedMessageV3 implements
> // @@protoc_insertion_point(message_implements:Forcive.
> Dto.Objects.Object)
> ObjectOrBuilder {
> // Use Object.newBuilder() to construct.
> private Object(com.google.protobuf.GeneratedMessageV3.Builder<?>
> builder) {
> super(builder);
> }
> private Object() {
> }
>
> @java.lang.Override
> public final com.google.protobuf.UnknownFieldSet
> getUnknownFields() {
> return this.unknownFields;
> }
> private Object(
> com.google.protobuf.CodedInputStream input,
> com.google.protobuf.ExtensionRegistryLite extensionRegistry)
> throws com.google.protobuf.InvalidProtocolBufferException {
> this();
> int mutable_bitField0_ = 0;
> int mutable_bitField1_ = 0;
> int mutable_bitField2_ = 0;
> int mutable_bitField3_ = 0;
> com.google.protobuf.UnknownFieldSet.Builder unknownFields =
> com.google.protobuf.UnknownFieldSet.newBuilder();
> try {
> boolean done = false;
> while (!done) {
> int tag = input.readTag();
> switch (tag) {
> *case 2147793578 <2147793578>*: {
> Forcive.Dto.Objects.AllMessages.RepositoryDto.Builder
> subBuilder = null;
> if (((bitField1_ & 0x00004000) == 0x00004000)) {
> subBuilder = repositoryDto_.toBuilder();
> }
> repositoryDto_ = input.readMessage(Forcive.Dto.
> Objects.AllMessages.RepositoryDto.PARSER, extensionRegistry);
> if (subBuilder != null) {
> subBuilder.mergeFrom(repositoryDto_);
> repositoryDto_ = subBuilder.buildPartial();
> }
> bitField1_ |= 0x00004000;
> break;
> }
>
> ....
> }
>
> The compiler error :
> Error:(78400, 18) java: integer number too large: 2147793578
>
> For the same .proto file were generated c++ classes that are successfully
> complied.
>
> Have anyone ideas how to fix this problem?
>
> Thanks,
> Denis Vlah
>
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