java diablo-jdk

[Achilleas Mantzios]

Very insightful,
thanx!

On Τετ 10 Οκτ 2012 20:35:19 Jung-uk Kim wrote:
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> On 2012-10-10 02:37:50 -0400, Achilleas Mantzios wrote:
> > Do ECJ or GCJ produce same quality class bytecode as javac?
> 
> Depends on your definition of quality...  AFAICT, ECJ can produce
> "reasonably" good bytecode but GCJ looks unstable some times.
> However, GCJ can produce (platform-dependent) native code, i.e., AOT
> ("ahead-of-time") compilation.  OTH, ECJ is written in Java, so you
> need a JVM to drive it.  GCJ has a built-in JVM (GIJ on top of libgcj)
> but it is extremely slow because it does not have a JIT compiler.  GCJ
> uses ancient and buggy ECJ (modified by GNU people) for its parser.
> ECJ has vibrant community but GCJ is almost dormant.  So on and so
> forth...  It really depends on your needs.
> 
> BTW, Sun/Oracle OpenJDK is a *reference* implementation for Java SE
> specification.  Therefore, comparison is meaningless, I guess. ;-)
> 
> Jung-uk Kim
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-
Achilleas Mantzios
IT DEPT