Github user StephanEwen commented on the issue:
https://github.com/apache/flink/pull/2418
Actually, it may be possible, and not too bad if we assume the Hashtable is
immutable. Something like this:
```java
public class HashtableWrapper extends Hashtable<String, String> {
private final Map<String, String> backingMap;
private final String name;
public HashtableWrapper(Map<String, String> backingMap, String name) {
super(1);
this.backingMap = backingMap;
this.name = name;
}
@Override
public synchronized V get(Object key) {
if ("name".equals(key)) {
return name;
} else {
return backingMap.get(key);
}
}
@Override
public synchronized String put(String key, String value) {
throw new UnsupportedOperationException("immutable hashtable");
}
// wrappers for Iterator to Enumeration
@Override
public synchronized Enumeration<String> keys() {
return new IteratorToEnumeration(backingMap.keySet());
}
@Override
public synchronized Enumeration<String> elements() {
return new IteratorToEnumeration(backingMap.valueSet());
}
// and so on ...
}
```
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