in playground-internal/statefun-playground-entrypoint/src/main/java/org/apache/flink/statefun/playground/internal/io/flink/RefCountedContainer.java [45:58]
public void close() throws Exception {
if (valid) {
synchronized (lock) {
refCounter -= 1;
if (refCounter == 0 && value != null) {
value.close();
value = null;
}
}
valid = false;
}
}