Shouldn't any Java 8 compatible JDK be enough to bootstrap the Java 9 build? If not I would consider this a bug.
We are using various (HotSpot based) versions of Java 8 to bootstrap JDK 9 and haven't seen any problems until now. IBM J9 was known for causing some problems in the past because of the different way they packed the standard Java classes into jar files (they come with a bunch of different jars where Oracle/OpenJDK have all in rt.jar). But a port of these problems have been solved by the new build of Java 9 which uses its own compiler for compiling most of its classes instead of using javac compiler of the bootstrap JDK. Regards, Volker On Mon, Sep 26, 2016 at 12:46 PM, Andrew Haley <a...@redhat.com> wrote: > On 26/09/16 11:41, Wang Weijun wrote: >> My recent JPRT (an Oracle internal build tool) job shows >> >> checking Boot JDK version... java version "1.8.0" Java(TM) SE Runtime >> Environment (build 1.8.0-b132) Java HotSpot(TM) 64-Bit Server VM (build >> 25.0-b70, mixed mode) >> >> This is not OpenJDK. > > That's close enough for my needs. > > Thanks, > > Andrew. > >
