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This bug now is reproducible in the latest Mustang beta build 59e also. java is not working after mustang upgrade/downgrage from/to 1.3.1_X/1.4.2_X/1.5.0_X on windows. Steps to reproduce: - install mustang (jre1.6.0) build 65 (promoted) - make sure "java -version" is working - install tiger update (jre1.5.0_06) (latest promoted) - try "java -version", it is not working - uninstall jre1.5.0_06 - try "java -version" again, it is not working and if you in step 5 uninstall jre1.6.0, java will be removed totaly from windows system dir (but we still have jre1.5 on the machine) It is a regression. Everything works fine with jre1.6.0_build62 ------------------------------------------------------------------------------ I did further testing and it is looks worse then it was from the beginning: This is how our Mustang behave now: 1) Upgrade from 1.3.1_X to Mustang - on clean machine (no jre), install 1.3.1_X version - upgrade it to Mustang (you can use any build starting from build 64 (63 working fine)) - remove 1.3.1_X version (uninstall 1.3.1_X) - try java ("Command not found") (this is another bug, I think not related to Joe's changes) - from IE, try "Sun Java Console" - it is not registered (this is another bug, I think not related to Joe's changes) - now, if you try to execute javaws error coming: Initial Java Virtual Machine Launcher Failing reading value of registry key:Software\JavaSoft\Java Runtime Environment\CurrentVersion Same scenario working fine with build 63 2) Upgrade from 1.4.2_X to Mustang - on clean machine (no jre), install 1.4.2_X version - upgrade it to Mustang (you can use any build starting from build 65 (64 working fine)) - remove 1.4.2_X version (uninstall 1.4.2_X) - now try to execute java, it is not responding at all (javaws working fine) Same scenario working fine with build 64 3) Upgrade from 1.5.0_X to Mustang - on clean machine (no jre), install 1.5.0_X version - upgrade it to Mustang (you can use any build starting from build 65 (64 working fine)) - remove 1.5.0_X version (uninstall 1.5.0_X) - now try to execute java, it is not responding at all (javaws working fine) Same scenario working fine with build 64
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