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February 01, 2011

Mark Wielaard: New GPG key. Finally created a new GPG key using gnupg. The old one was a DSA/1024 bits one and 8 years old. The new one is a RSA/2048 bits one. I will use the new one in the future to sign any release tarballs I might create. pub 2048R/57816A6A 2011-01-29 Key f...

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February 01, 2011

Andrew Hughes: [SECURITY] IcedTea6 1.7.8, 1.8.5, 1.9.5 Released!. We are pleased to announce a new set of security releases, IcedTea6 1.7.8, IcedTea6 1.8.5 and IcedTea6 1.9.5. This update contains the following security updates: The IcedTea project provides a harness to build the source code from OpenJDK6 u...

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home > news > developers > joe darcy: api design: identity and equality

Joe Darcy: API Design: Identity and Equality

When designing types to be reused by others, there are reasons to favor interfaces over abstract classes. One complication of using an interface-based approach stems from defining reasonable behavior for the equals and hashCode methods, especially if different implementations are intended to play well together when used in data structures like collections, in particular if an interface type is meant to serve as theĀ ...


Date: February, 24 2010
Url: http://blogs.sun.com/darcy/entry/api_design_identity_and_equality


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