emptyLongList() missing when generating repeated primatives in proto3 java

[KDawgOne]

The following .proto file creates Java code that cannot be compiled with javac (Using protobuf 3.6.1) and Java 1.8.0_144. The problem seams to apply to any primitive except for string.

syntax = "proto3";

option java_package = "com.protobuf.test";
option java_outer_classname = "ProtoTest";

message IAmBroken
{
repeated int64 whatHappened = 1;
}

The following (redacted) output is generated when it is compiled with javac

[javac] C:\codetest\src\main\java\com\protobuf\test\ProtoTest.java:47: error: cannot find symbol
[javac]       whatHappened_ = emptyLongList();
[javac]                       ^
[javac]   symbol:   method emptyLongList()
[javac]   location: class IAmBroken
[javac] C:\codetest\src\main\java\com\protobuf\test\ProtoTest.java:76: error: cannot find symbol
[javac]                 whatHappened_ = newLongList();
[javac]                                 ^
[javac]   symbol:   method newLongList()
[javac]   location: class IAmBroken
[javac] C:\codetest\src\main\java\com\protobuf\test\ProtoTest.java:86: error: cannot find symbol
[javac]                 whatHappened_ = newLongList();
[javac]                                 ^
[javac]   symbol:   method newLongList()
[javac]   location: class IAmBroken
[javac] C:\codetest\src\main\java\com\protobuf\test\ProtoTest.java:363: error: cannot find symbol
[javac]         whatHappened_ = emptyLongList();
[javac]                         ^
[javac]   symbol:   method emptyLongList()
[javac]   location: class Builder
[javac] C:\codetest\src\main\java\com\protobuf\test\ProtoTest.java:485: error: cannot find symbol
[javac]       private com.google.protobuf.Internal.LongList whatHappened_ = emptyLongList();
[javac]                                                                     ^
[javac]   symbol:   method emptyLongList()
[javac]   location: class Builder
[javac] C:\codetest\src\main\java\com\protobuf\test\ProtoTest.java:488: error: cannot find symbol
[javac]           whatHappened_ = mutableCopy(whatHappened_);
[javac]                           ^
[javac]   symbol:   method mutableCopy(LongList)
[javac]   location: class Builder
[javac] C:\codetest\src\main\java\com\protobuf\test\ProtoTest.java:546: error: cannot find symbol
[javac]         whatHappened_ = emptyLongList();
[javac]                         ^
[javac]   symbol:   method emptyLongList()
[javac]   location: class Builder

[clehene]

This is not a bug. You're likely mixing protoc 3.7.x with a 3.6.x protobuf-java dependency.
The empty[X]List is part of GeneratedMessageV3 since 3.7.x.
The 3.7.0 version was not yet released in maven central, however you can use protobuf-java 3.7.0-rc1 and it should work.

[KDawgOne]

OK, looks like this issue no longer exists in 3.7.0-rc1 and the code compiled without any errors.

Thanks for the help.