Hello, I would add an additional argument to allow substring filtering on the fully qualified class name (like com/example or UtilClass), since this can creator reduce processing/printing time. But I guess that can be added as an additional feature later on (maybe only the “verbose” variant can conflict if this is not a option (-verbose?).
Gruss Bernd -- http://bernd.eckenfels.net ________________________________ Von: serviceability-dev <serviceability-dev-r...@openjdk.java.net> im Auftrag von Yi Yang <yy...@openjdk.java.net> Gesendet: Monday, March 7, 2022 3:33:59 AM An: hotspot-...@openjdk.java.net <hotspot-...@openjdk.java.net>; serviceability-dev@openjdk.java.net <serviceability-dev@openjdk.java.net> Betreff: Re: RFR: 8275775: Add jcmd VM.classes to print details of all classes [v10] On Fri, 4 Mar 2022 09:05:36 GMT, Yi Yang <yy...@openjdk.org> wrote: >> Add VM.classes to print details of all classes, output looks like: >> >> 1. jcmd VM.classes >> >> KlassAddr Size State Flags LoaderName ClassName >> 0x0000000800c0b400 62 inited W bootstrap >> java.lang.invoke.LambdaForm$MH/0x0000000800c0b400 >> 0x0000000800c0b000 62 inited W bootstrap >> java.lang.invoke.LambdaForm$DMH/0x0000000800c0b000 >> 0x0000000800c0ac00 62 inited W bootstrap >> java.lang.invoke.LambdaForm$MH/0x0000000800c0ac00 >> ... >> >> 2. jcmd VM.classes verbose >> >> KlassAddr Size State Flags LoaderName ClassName >> 0x0000000800c0b400 62 inited W bootstrap >> java.lang.invoke.LambdaForm$MH/0x0000000800c0b400 >> java.lang.invoke.LambdaForm$MH/0x0000000800c0b400 {0x0000000800c0b400} >> - instance size: 2 >> - klass size: 62 >> - access: final synchronized >> - state: inited >> - name: 'java/lang/invoke/LambdaForm$MH+0x0000000800c0b400' >> - super: 'java/lang/Object' >> - sub: >> - arrays: NULL >> - methods: Array<T>(0x00007f620841f210) >> - method ordering: Array<T>(0x0000000800a7e5a8) >> - default_methods: Array<T>(0x0000000000000000) >> - local interfaces: Array<T>(0x00000008005af748) >> - trans. interfaces: Array<T>(0x00000008005af748) >> - constants: constant pool [41] {0x00007f620841f030} for >> 'java/lang/invoke/LambdaForm$MH+0x0000000800c0b400' cache=0x00007f620841f380 >> - class loader data: loader data: 0x00007f61c804a690 of 'bootstrap' has a >> class holder >> - source file: 'LambdaForm$MH' >> - class annotations: Array<T>(0x0000000000000000) >> - class type annotations: Array<T>(0x0000000000000000) >> - field annotations: Array<T>(0x0000000000000000) >> - field type annotations: Array<T>(0x0000000000000000) >> - inner classes: Array<T>(0x00000008005af6d8) >> - nest members: Array<T>(0x00000008005af6d8) >> - permitted subclasses: Array<T>(0x00000008005af6d8) >> - java mirror: a 'java/lang/Class'{0x000000011f4b3968} = >> 'java/lang/invoke/LambdaForm$MH+0x0000000800c0b400' >> - vtable length 5 (start addr: 0x0000000800c0b5b8) >> - itable length 2 (start addr: 0x0000000800c0b5e0) >> - ---- static fields (1 words): >> - static final '_D_0' 'Ljava/lang/invoke/LambdaForm;' @112 >> - ---- non-static fields (0 words): >> - non-static oop maps: >> 0x0000000800c0b000 62 inited W bootstrap >> java.lang.invoke.LambdaForm$DMH/0x0000000800c0b000 >> java.lang.invoke.LambdaForm$DMH/0x0000000800c0b000 {0x0000000800c0b000} >> - instance size: 2 >> - klass size: 62 >> - access: final synchronized >> - state: inited >> - name: 'java/lang/invoke/LambdaForm$DMH+0x0000000800c0b000' >> - super: 'java/lang/Object' >> - sub: >> - arrays: NULL >> - methods: Array<T>(0x00007f620841ea68) >> - method ordering: Array<T>(0x0000000800a7e5a8) >> - default_methods: Array<T>(0x0000000000000000) >> - local interfaces: Array<T>(0x00000008005af748) >> - trans. interfaces: Array<T>(0x00000008005af748) >> - constants: constant pool [49] {0x00007f620841e838} for >> 'java/lang/invoke/LambdaForm$DMH+0x0000000800c0b000' cache=0x00007f620841ebe0 >> - class loader data: loader data: 0x00007f61c804a750 of 'bootstrap' has a >> class holder >> - source file: 'LambdaForm$DMH' >> - class annotations: Array<T>(0x0000000000000000) >> - class type annotations: Array<T>(0x0000000000000000) >> - field annotations: Array<T>(0x0000000000000000) >> - field type annotations: Array<T>(0x0000000000000000) >> - inner classes: Array<T>(0x00000008005af6d8) >> - nest members: Array<T>(0x00000008005af6d8) >> - permitted subclasses: Array<T>(0x00000008005af6d8) >> - java mirror: a 'java/lang/Class'{0x000000011f4b0968} = >> 'java/lang/invoke/LambdaForm$DMH+0x0000000800c0b000' >> - vtable length 5 (start addr: 0x0000000800c0b1b8) >> - itable length 2 (start addr: 0x0000000800c0b1e0) >> - ---- static fields (1 words): >> - static final '_D_0' 'Ljava/lang/invoke/LambdaForm;' @112 >> - ---- non-static fields (0 words): >> ... > > Yi Yang has updated the pull request incrementally with one additional commit > since the last revision: > > use %4d Thank you for taking time to help review. 3 approval, I want to merge this tomorrow if no objections/comments. ------------- PR: https://git.openjdk.java.net/jdk/pull/7105
