By setting -Xcomp, i get an UncommonTrap in one of the java/lang/String constructors:

Uncommon trap occurred in java.lang.String::<init> (@0x01c8ebb8) thread=5792 reason=unloaded
action=reinterpret unloaded_class_index=463 unresolved class: java/lang/StringCoding
DEOPT PACKING thread 0x0132f400 Compiled frame (sp=0x0052f7a0 unextended sp=0x0052f7a0,
fp=0x0f713a40, real_fp=0x0052f7c0, pc=0x01c8ebb8)
     nmethod 10023 142 java.lang.String::<init> (10 bytes)

     Virtual frames (innermost first):
        0 - frame( sp=0x0052f7a0, unextended_sp=0x0052f7a0, fp=0x0f713a40, pc=0x01c8ebb8)
java.lang.String.<init>(String.java:414) - invokestatic @ bci 31
        {method} {0x157b366c} '<init>' '([BIILjava/lang/String;)V' in public final synchronized 'java/lang/String'
        bci: 31
        locals:
           0 conflict
           1 conflict
           2 conflict
           3 conflict
           4 conflict
        expressions:
           0 #
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x55218b4f, pid=2524, tid=5792
#
# JRE version: Java(TM) SE Runtime Environment (9.0-b05) (build 1.9.0-ea-fastdebug-b05)
# Java VM: Java HotSpot(TM) Server VM (25.0-b62-internal-debug compiled mode windows-x86 )
# Problematic frame:
# V [jvm.dll+0x38b4f] arrayOopDesc::length+0xf
#
..


The [C array has not been assigned yet, hence crashing.