On Tue, 24 Jan 2023 03:17:01 GMT, Chris Plummer <cjplum...@openjdk.org> wrote:
>> classFileParser drops stack map frames for JDK classes (when verification is >> not required). >> As a result JvmtiClassFileReconstituter cannot restore the attribute for >> class redefinition. >> Note that if the class is in CDS archive, the frames are restored from CDS, >> so this issue affects only JDK classes which are not in CDS. >> This code is old (from "initial load") and I don't understand the reason it >> was implemented this way. >> >> Testing: tier1-tier6 > > test/hotspot/jtreg/serviceability/jvmti/RedefineClasses/MissedStackMapFrames/MissedStackMapFrames.java > line 107: > >> 105: byte[] retransformBytes = retransformBytes(i); >> 106: checkStackMapFrames(cls + "(load)", loadBytes); >> 107: checkStackMapFrames(cls + "(retranform)", retransformBytes); > > "retransform" I'd also suggest a couple of name changes to increase readability: loadBytes => loadedBytes retransformBytes => retransformedBytes ------------- PR: https://git.openjdk.org/jdk/pull/12155