Re: [9] RFR (M) 8054888: Runtime: Add Diagnostic Command that prints the class hierarchy

[Chris Plummer]

Ok, hopefully the last webrev. :) -JPRT found a compiler error on Solaris. classfile/systemDictionary.hpp needed to be included due to the reference to SystemDictionary::Object_klass(). I assume this turned up on Solaris because it doesn't use precompiled headers. -I noticed I had inadvertently removed a ResourceMark in KlassInfoHisto::print_class_stats(). I think maybe I had done a cut-n-paste rather than copy-n-paste. This was in webrev.01 but was pretty inconspicuous in the webrev so went noticed. -I changed another WARNING to ERROR as Staffan requested. -I updated to the latest JDK9 sources and made the needed changes to the DCMD test as Mikael requested. thanks, Chris On 2/11/15 9:38 AM, Chris Plummer wrote: On 2/11/15 2:12 AM, Mikael Auno wrote: On 2015-02-11 04:13, Chris Plummer wrote: In general I think this looks very good. Simple and well-commented code to follow. I am missing a test, though. Please look at the hotspot/test/serviceability/dcmd set of tests. Added. Your test is based on DcmdUtil.java which was removed last week (see [0]). If you pull new changes from hs-rt/hotspot, you'll see plenty of tests using the new DCMD utility classes in testlibrary. Also, the new tests are divided in different subdirectories depending on the commands, so as your test exercises VM.class_hierarchy it should go in .../dcmd/vm/ as opposed to just .../dcmd/. Thanks, Mikael   [0] http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/file/tip/test/serviceability/dcmd Ok. I'll pull the latest hs-rt and update the test. Thanks for pointing that out. Chris