Reproduce:
 javac Test.java
 java -jar asmtools.jar jcoder Host.jcod
 java Test

Then in most time (for it is a multithread bug) , we will get the crash :

#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/home/wanghuang/repo/openjdk/jdk/src/hotspot/share/classfile/systemDictionary.cpp:1939), pid=89089, tid=87530
# assert(entry->nest_host_error() == __null) failed: Nest host error message already set!
#
# JRE version: OpenJDK Runtime Environment (17.0) (fastdebug build 17-internal+0-adhoc.wanghuang.jdk)
# Java VM: OpenJDK 64-Bit Server VM (fastdebug 17-internal+0-adhoc.wuyan.jdk, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, linux-aarch64)
# Problematic frame:
# V [libjvm.so+0x16b915c] SystemDictionary::add_nest_host_error(constantPoolHandle const&, int, char const*)+0x114
#
# Core dump will be written. Default location: /home/wanghuang/bug/0406/core.%e.89089.%t
#
# If you would like to submit a bug report, please visit:
# https://bugreport.java.com/bugreport/crash.jsp
#

The main reason of this crash is this code:

``` java
void SystemDictionary::add_nest_host_error(const constantPoolHandle& pool,
                                           int which,
                                           const char* message) {
  unsigned int hash = resolution_errors()->compute_hash(pool, which);
  int index = resolution_errors()->hash_to_index(hash);
  {
    MutexLocker ml(Thread::current(), SystemDictionary_lock);
    ResolutionErrorEntry* entry = resolution_errors()->find_entry(index, hash, pool, which);
    if (entry != NULL) {
      assert(entry->nest_host_error() == NULL, "Nest host error message already set!");
      entry->set_nest_host_error(message);
    } else {
      resolution_errors()->add_entry(index, hash, pool, which, message);
    }
  }
}
```

This bug will reproduce in two interpret threads(In our case) or compiler threads(if we resolve the classes from compiler thread without interpret thread) executing. Thread A get a `resolution_errors` and called `add_entry`. Thread B will get `entry` from `find_entry` and trigger the assert.