x/mobile: gobind reverse bindings mistakes struct fields with embedding a java class

[microo8]

What version of Go are you using (go version)?

go version go1.8 linux/amd64

What operating system and processor architecture are you using (go env)?

GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/micro/Workspace"
GORACE=""
GOROOT="/usr/lib/go"
GOTOOLDIR="/usr/lib/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
CC="gcc"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build006260206=/tmp/go-build -gno-record-gcc-switches"
CXX="g++"
CGO_ENABLED="1"
PKG_CONFIG="pkg-config"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"

x/mobile version

my x/mobile is updated to the latest commit in Date: Tue Feb 21 21:57:37 2017 +0100

What did you do?

I've created an MainActivity and embedded android.app.Activity. Then I added a android.webkit.WebView field to the struct and ran ./gradlew assembleDebug.
Here is the code and build.gradle

What did you expect to see?

Successfully compile and build an apk.

What did you see instead?

:preBuild UP-TO-DATE
:preDebugBuild UP-TO-DATE
:checkDebugManifest
:preReleaseBuild UP-TO-DATE
:prepareComAndroidDatabindingAdapters121Library UP-TO-DATE
:prepareComAndroidDatabindingLibrary121Library UP-TO-DATE
:prepareComAndroidSupportSupportV42103Library UP-TO-DATE
:prepareDebugDependencies
:compileDebugRenderscript UP-TO-DATE
:generateDebugResValues UP-TO-DATE
:generateDebugResources UP-TO-DATE
:mergeDebugResources UP-TO-DATE
:dataBindingProcessLayoutsDebug UP-TO-DATE
:compileDebugAidl UP-TO-DATE
:generateDebugBuildConfig UP-TO-DATE
:gobindDebug
type test1.MainActivity struct{Java/android/app.Activity; MyWebView Java/android/webkit.WebView} embeds more than one Java class; only one is allowed.
type test1.MainActivity struct{Java/android/app.Activity; MyWebView Java/android/webkit.WebView} embeds more than one Java class; only one is allowed.
type test1.MainActivity struct{Java/android/app.Activity; MyWebView Java/android/webkit.WebView} embeds more than one Java class; only one is allowed.
type test1.MainActivity struct{Java/android/app.Activity; MyWebView Java/android/webkit.WebView} embeds more than one Java class; only one is allowed.
:gobindDebug FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':gobindDebug'.
> Process 'command '/home/micro/Workspace/bin/gobind'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

I think that gobind mistakes the struct fields with embedding a java class.