internal/importers/java: specify language for javap command by -J-Duser.language=en
In Japanese environment, `javap` report errors in Japanese.
```
$ /usr/bin/javap -s -protected -constants com.example.ExampleClass
エラー: クラスが見つかりません: com.example.ExampleClass
```
But `java.Importer.Import` handles errors using `javap`'s output in
English.
So `javap` should be called with `-J-Duser.language=en` option.
Fixes golang/go#17987
Change-Id: I63d30cd49446523e54df2beae8d3f09f9de9bca5
Reviewed-on: https://go-review.googlesource.com/33371
Reviewed-by: Elias Naur <elias.naur@gmail.com>
diff --git a/internal/importers/java/java.go b/internal/importers/java/java.go
index 69b2254..78949e7 100644
--- a/internal/importers/java/java.go
+++ b/internal/importers/java/java.go
@@ -355,7 +355,7 @@
if len(names) == 0 {
return nil, nil
}
- args := []string{"-s", "-protected", "-constants"}
+ args := []string{"-J-Duser.language=en", "-s", "-protected", "-constants"}
if j.clspath != "" {
args = append(args, "-classpath", j.clspath)
}
