Quick fix to add Java buildpacks

api/server/handlers/gitinstallation/get_buildpack.go

@@ -112,6 +112,18 @@ func (c *GithubGetBuildpackHandler) ServeHTTP(w http.ResponseWriter, r *http.Req
 	}
 	wg.Wait()
 
+	// FIXME: add Java buildpacks
+	builderInfoMap[buildpacks.PaketoBuilder].Others = append(builderInfoMap[buildpacks.PaketoBuilder].Others,
+		buildpacks.BuildpackInfo{
+			Name:      "Java",
+			Buildpack: "gcr.io/paketo-buildpacks/java",
+		})
+	builderInfoMap[buildpacks.HerokuBuilder].Others = append(builderInfoMap[buildpacks.HerokuBuilder].Others,
+		buildpacks.BuildpackInfo{
+			Name:      "Java",
+			Buildpack: "heroku/java",
+		})
+
 	var builders []*buildpacks.BuilderInfo
 	for _, v := range builderInfoMap {
 		builders = append(builders, v)