wiki:java

Version 12 (modified by anonym lavabit com, 9 years ago) (diff)

Relayed 10GB/10GB with both Sun's JRE and IcedTea? -- noticed no difference in total CPU/mem usage

Java JRE and SDK Support and Performance

Please help fill this out

JRE/SDK Works Compiles Performance
Sun 5 yes yes good
Sun 6 yes yes good
Sun 7
GCJ (compiled to C) yes all but console very poor
GCJ-JRE (gij) yes yes poor
Iced Tea 5
Iced Tea 6 yes yes good
Iced Tea 7
Open JDK 5
Open JDK 6
Open JDK 7
IBM Reportedly does not http://zzz.i2p/topics/577
Android no yes (core and router) hopeless
Oracle/BEA JRockit 1.6 yes yes good
Apache Harmony 5 no - bug in Deflater causes NPEs in router
Apache Harmony 6
JamVM n/a

NOTES:

<smeghead> icedtea is openjdk with the non-GPL-compatible parts replaced, and openjdk is sun's jdk with bits relicensed

<smeghead> for most purposes you shouldn't notice any difference between sun, openjdk, and icedtea

<smeghead> however, icedtea offers some alternatives to hotspot which can give worse or better performance