Code review comment for ~vpa1977/ubuntu/+source/openjdk-20:03_security_release_debug

Debug without symbols:
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gdb java
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Reading symbols from java...

This GDB supports auto-downloading debuginfo from the following URLs:
  <https://debuginfod.ubuntu.com>
Enable debuginfod for this session? (y or [n])
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(No debugging symbols found in java)
(gdb) break JNI_CreateJavaVM
Function "JNI_CreateJavaVM" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 (JNI_CreateJavaVM) pending.
(gdb) run -cp . infinite
Starting program: /usr/bin/java -cp . infinite
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7ffff7bff6c0 (LWP 7644)]
[Switching to Thread 0x7ffff7bff6c0 (LWP 7644)]

Thread 2 "java" hit Breakpoint 1, 0x00007ffff6f8cdd0 in JNI_CreateJavaVM ()
   from /usr/lib/jvm/java-20-openjdk-amd64/lib/server/libjvm.so
(gdb) where
#0 0x00007ffff6f8cdd0 in JNI_CreateJavaVM ()
   from /usr/lib/jvm/java-20-openjdk-amd64/lib/server/libjvm.so
#1 0x00007ffff7fb2d93 in JavaMain ()
   from /usr/lib/jvm/java-20-openjdk-amd64/bin/../lib/libjli.so
#2 0x00007ffff7fb709d in ThreadJavaMain ()
   from /usr/lib/jvm/java-20-openjdk-amd64/bin/../lib/libjli.so
#3 0x00007ffff7c8f18a in start_thread (arg=<optimized out>)
    at ./nptl/pthread_create.c:444
#4 0x00007ffff7d1dbd0 in clone3 ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
(gdb) info local
No symbol table info available.
(gdb)
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