# | Line 62 | Line 62 | import java.io.ObjectOutputStream; | |
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62 | * does <em>not</em> allow <tt>null</tt> to be used as a key or value. | |
63 | * | |
64 | * <p>This class is a member of the | |
65 | < | * <a href="{@docRoot}/../guide/collections/index.html"> |
65 | > | * <a href="{@docRoot}/../technotes/guides/collections/index.html"> |
66 | * Java Collections Framework</a>. | |
67 | * | |
68 | * @since 1.5 |
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