Replacement for obsolete Hashtable class in Java

Question

When I tried to use the hashtable class, Netbeans gave me an error saying:

While still supported, these classes were made obsolete by the JDK1.2 colle

Answer 1

There are cases when a method outside your control requires an Hashtable. Java's own javax.management.ObjectName is such an example^[1].

When the external interface requires it you have to use Hashtable. In netbeans, you can use:

@SupresssWarnings("UseOfObsoleteCollectionType")

to suppress the warning locally.

See

• Java: complete list of @SuppressWarnings(...) parameters (in Netbeans)?
• Suppress deprecated import warning in Java

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1: I wonder why they used Hashtable and not HashMap, since ObjectName is available since 1.5 and Hashtable is obsolete since 1.2