When CDS Heap Dumping is enabled, there are a (at least) a couple of bugs causing crashes like:


# Internal Error (c:\sb\prod\1764879362\workspace\open\src\hotspot\share\cds\aotMapLogger.cpp:514), pid=69644, tid=51076
# assert(_buffer_start <= buffer_addr && buffer_addr < _buffer_end) failed: range check
#
# JRE version: (26.0) (fastdebug build )
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 26-jep401ea2-2025-12-04-2013580.coleen.phillimore.valhalla-matias-cds, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, windows-amd64)
# Problematic frame:
# V [jvm.dll+0x29e8f7] AOTMapLogger::FakeOop::read_oop_at+0xc7

And

A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/Users/cphillim/hg/valhalla-matias-cds/open/src/hotspot/share/runtime/synchronizer.cpp:675), pid=34623, tid=18947
# assert(!obj->klass()->is_inline_klass()) failed: FastHashCode should not be called for inline classes
#

And one where the prototype header isn't saved for an FlatArrayKlass:

# Internal Error (/Users/cphillim/hg/valhalla-matias-cds/open/src/hotspot/share/oops/flatArrayKlass.cpp:175), pid=25698, tid=8707
# assert(UseCompactObjectHeaders || obj->is_flatArray()) failed: must be an flat array
#