There is a compatibility problem of DubboHeadersGetter#keys in Dubbo 2.7.6 and 2.7.7 #12978
Description
Describe the bug
In Dubbo instrumentation, I found a compatibility problem of DubboHeadersGetter#keys in Dubbo 2.7.6, 2.7.7.
In related versions, the getAttachments is as follows:
@Deprecated
@Override
public Map<String, String> getAttachments() {
return new AttachmentsAdapter.ObjectToStringMap(attachments);
}
public static class ObjectToStringMap extends HashMap<String, String> {
private Map<String, Object> attachments;
public ObjectToStringMap(Map<String, Object> attachments) {
this.attachments = attachments;
}
@Override
public String get(Object key) {
Object obj = attachments.get(key);
return convert(obj);
}
@Override
public String put(String key, String value) {
Object obj = attachments.put(key, value);
return convert(obj);
}
@Override
public String remove(Object key) {
Object obj = attachments.remove(key);
return convert(obj);
}
private String convert(Object obj) {
if (obj instanceof String) {
return (String) obj;
}
return null; // or JSON.toString(obj);
}
}The ObjectToStringMap can't get all keySet by keySet method, so it can't get correct result of DubboHeadersGetter#keys in related version.
Steps to reproduce
We can compare the codes between Dubbo 2.7.6, 2.7.7 and others, we can get above conclusion by codes.
Expected behavior
DubboHeadersGetter#keys can't get correct result in Dubbo 2.7.6, 2.7.7
Actual behavior
DubboHeadersGetter#keys can get correct result in Dubbo 2.7.6, 2.7.7
Javaagent or library instrumentation version
2.11.0
Environment
No response
Additional context
No response