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muc: synchronize Stats.create(Integer)

Since this method is used by the MUCUserProvider, it is potentially
invoked concurrently and the access to the statusMap must be
synchronized then.
This commit is contained in:
Florian Schmaus 2020-04-16 21:20:53 +02:00
parent fa643f12d5
commit e2e228fc93

View file

@ -420,10 +420,14 @@ public class MUCUser implements ExtensionElement {
}
public static Status create(Integer i) {
Status status = statusMap.get(i);
if (status == null) {
status = new Status(i);
statusMap.put(i, status);
Status status;
// TODO: Use computeIfAbsent once Smack's minimum required Android SDK level is 24 or higher.
synchronized (statusMap) {
status = statusMap.get(i);
if (status == null) {
status = new Status(i);
statusMap.put(i, status);
}
}
return status;
}