Quarkus native and org.kohsuke:github-api -无法反序列化异常

Question

我正在使用Quarkus native和org.kohsuke:github-api:1.111，当执行简单的new GitHubBuilder().withOAuthToken(ghToken).build();时，我在本地模式下看到Failed to deserialize异常。这在JVM模式下工作。

主要的问题可能是org.kohsuke:github-api还没有为原生模式做好准备。我仍然想问一下是否有解决这个问题的方法，也许是https://github.com/github-api/github-api/blob/master/src/main/java/org/kohsuke/github/GHMyself.java的一些jackson技巧(堆栈跟踪包含不能构造org.kohsuke.github.GHMyself的实例(不存在创建者，比如默认构造))。

异常详细信息：

2020-05-05 10:47:06,891 ERROR [io.qua.ver.htt.run.QuarkusErrorHandler] (executor-thread-1) HTTP Request to /hello failed, error id: a71018e5-de46-43a0-a194-80bd0b477f3d-1: org.jboss.resteasy.spi.UnhandledException: org.kohsuke.github.HttpException: Server returned HTTP response code: 200, message: '200 OK' for URL: https://api.github.com/user
...
Caused by: java.io.IOException: Failed to deserialize {"login":"rsvoboda","id":925259,"node_id":"MDQ6VXNlcjkyNTI1OQ==","avatar_url":"https://avatars0.githubusercontent.com/u/925259?v=4","gravatar_id":"","url":"https://api.github.com/users/rsvoboda","html_url":"https://github.com/rsvoboda","followers_url":"https://api.github.com/users/rsvoboda/followers","following_url":"https://api.github.com/users/rsvoboda/following{/other_user}","gists_url":"https://api.github.com/users/rsvoboda/gists{/gist_id}","starred_url":"https://api.github.com/users/rsvoboda/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rsvoboda/subscriptions","organizations_url":"https://api.github.com/users/rsvoboda/orgs","repos_url":"https://api.github.com/users/rsvoboda/repos","events_url":"https://api.github.com/users/rsvoboda/events{/privacy}","received_events_url":"https://api.github.com/users/rsvoboda/received_events","type":"User","site_admin":false,"name":"Rostislav Svoboda","company":"JBoss by Red Hat by IBM","blog":"https://twitter.com/r_svoboda","location":"Brno, Czech Republic","email":"rsvoboda@redhat.com","hireable":null,"bio":null,"public_repos":138,"public_gists":3,"followers":18,"following":2,"created_at":"2011-07-19T12:18:08Z","updated_at":"2020-04-29T14:38:31Z"}
    at org.kohsuke.github.GitHubResponse.parseBody(GitHubResponse.java:87)
    at org.kohsuke.github.GitHubClient.lambda$fetch$0(GitHubClient.java:146)
    at org.kohsuke.github.GitHubClient.createResponse(GitHubClient.java:404)
    at org.kohsuke.github.GitHubClient.sendRequest(GitHubClient.java:358)
    ... 37 more
Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of `org.kohsuke.github.GHMyself` (no Creators, like default construct, exist): cannot deserialize from Object value (no delegate- or property-based Creator)
 at [Source: (String)"{"login":"rsvoboda","id":925259,"node_id":"MDQ6VXNlcjkyNTI1OQ==","avatar_url":"https://avatars0.githubusercontent.com/u/925259?v=4","gravatar_id":"","url":"https://api.github.com/users/rsvoboda","html_url":"https://github.com/rsvoboda","followers_url":"https://api.github.com/users/rsvoboda/followers","following_url":"https://api.github.com/users/rsvoboda/following{/other_user}","gists_url":"https://api.github.com/users/rsvoboda/gists{/gist_id}","starred_url":"https://api.github.com/users/rsvobod"[truncated 734 chars]; line: 1, column: 2]
    at com.fasterxml.jackson.databind.DeserializationContext.reportBadDefinition(DeserializationContext.java:1592)
    at com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1058)
    at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1297)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:326)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:159)
    at com.fasterxml.jackson.databind.ObjectReader._bindAndClose(ObjectReader.java:1719)
    at com.fasterxml.jackson.databind.ObjectReader.readValue(ObjectReader.java:1261)
    at org.kohsuke.github.GitHubResponse.parseBody(GitHubResponse.java:84)

转制者详细信息：

生成app - https://quarkus.io/guides/getting-started#bootstrapping-the-project

为本机添加依赖项和quarkus.native.enable-https-url-handler属性

    <dependency>
      <groupId>org.kohsuke</groupId>
      <artifactId>github-api</artifactId>
      <version>1.111</version>
    </dependency>
    <dependency>
      <groupId>io.quarkus</groupId>
      <artifactId>quarkus-resteasy-jackson</artifactId>
    </dependency>
...
      <properties>
        <quarkus.package.type>native</quarkus.package.type>
        <quarkus.native.enable-https-url-handler>true</quarkus.native.enable-https-url-handler>
      </properties>

更改GreetingResource

        GitHub github = new GitHubBuilder().withOAuthToken(ghToken).build();
        GHRepository ghRepo = github.getRepository("quarkusio/quarkus");
        return ghRepo.toString();

从GreetingResourceTest中删除.body(is("hello"))

运行mvn clean verify -Dnative

Answer 1

您还可以在任何类上使用@RegisterForReflection(targets = GHObject.class)

Answer 2

我的猜测是，您将需要使用ReflectiveHierarchyBuildItem注册反射的所有GHObject层次结构。

所以这需要一个扩展。对于平台IMHO来说，这将是一个有用的补充。

Answer 3

如果你在本机模式下运行，并且得到的错误是由于反射而导致的，那么用@RegisterForReflection注释你的类，并在你的类中添加一个无参数的构造函数，然后重新构建应用程序并运行，你的错误就会得到解决。

有关更多参考信息，请参阅link上的quarkus指南