Meituan-Dianping / Meituan-Dianping/Robust

补丁包打成功 但是在修复时Add方法出错 方法名getInfo

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Dominant language
Java
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Description

异常类型:app运行时异常

手机型号:三星S8

手机系统版本:Android 8.0

Robust版本:0.4.85

Gradle版本:4.6

系统:如:Windows

code:

public class TwoActivity extends Activity {
@SuppressLint("SetTextI18n")
@Override
@Modify
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_two);
TextView text = (TextView) findViewById(R.id.text);
text.setText("Hello " + getInfo());
}

@Add
public String getInfo(){
    return "DemoTest";
}

}

堆栈/日志:

java.lang.RuntimeException: getDeclaredMethod error getInfo parameterTypes null targetObject com.project.robutdemo.TwoActivity@7db7f84
at com.meituan.robust.utils.EnhancedRobustUtils.getDeclaredMethod(EnhancedRobustUtils.java:69)
at com.meituan.robust.utils.EnhancedRobustUtils.invokeReflectMethod(EnhancedRobustUtils.java:33)
at com.project.robutdemo.TwoActivityPatch.onCreate(TwoActivityPatch.java:25)
at com.project.robutdemo.TwoActivityPatchControl.accessDispatch(PatchTemplate.java)
at com.meituan.robust.PatchProxy.accessDispatch(PatchProxy.java:94)
at com.meituan.robust.PatchProxy.proxy(PatchProxy.java:44)
at com.project.robutdemo.TwoActivity.onCreate(TwoActivity.java)
at android.app.Activity.performCreate(Activity.java:6355)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2438)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2545)
at android.app.ActivityThread.access$1100(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1396)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:157)
at android.app.ActivityThread.main(ActivityThread.java:5597)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:771)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:649)
me: Shutting down VM

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with com.meituan.robust.utils.EnhancedRobustUtils.getDeclaredMethod and the generated com.project.robutdemo.TwoActivityPatch.onCreate shown in the stack trace. Reproduce the @Add getInfo case on the stated Android and Robust versions, then trace why reflection cannot resolve it; done means the patched onCreate runs without the getDeclaredMethod error and displays the expected result.

Written by the indexing model from the issue text.

Assessment

Tech stack
android, java
Domain
mobile
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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