The following problem was originally reported in 4634068.

There are a number of classes that do not respect the
implied contract for equals and hashCode. See, for example,
Joshua Bloch's book "Effective Java", items 7-8.

java.awt.font.GlyphVector defines
  equals(java.awt.font.GlyphVector) but doesn't redefine
  equals(Object)
java.awt.geom.Area defines
  equals(java.awt.geom.Area) but doesn't redefine
  equals(Object)
java.awt.Font$FontLineMetrics redefines
  equals(Object) but not hashCode()

Problems found by applying automatic tools to JDK
libraries. However, manual inspectation of the classes
reveals the same problems.

-- iag@sfbay 2002-02-06

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