ADDITIONAL SYSTEM INFORMATION :
> jdk1.8.0_371_hotspot/bin/java -version
java version "1.8.0_371"
Java(TM) SE Runtime Environment (build 1.8.0_371-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.371-b11, mixed mode)


A DESCRIPTION OF THE PROBLEM :
When I was testing JDK8u371, I found that even though I didn't create any strings in my program, it triggered an issue in g1StringDedupTable.cpp:566.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
> jdk1.8.0_371_hotspot/bin/java -Xms512m -Xmx4096m -XX:+UseStringDeduplication -XX:+UnlockDiagnosticVMOptions -XX:+VerifyDuringGC -XX:+UseG1GC Case

----------------
public class Case {
    public Object[][][] objectArray = new Object[256][256][4];

    public static void main(String[] args) {
        Case c = new Case();
        byte[] bytes = new byte[128 * 1024 * 1024];
        main(args);
    }
}
----------------


ACTUAL -
 VerifyDuringGC:(full)[Verifying Roots HeapRegions RemSet StrDedup #
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (g1StringDedupTable.cpp:566), pid=32516, tid=0x00007fd7ec911640
# guarantee(!value->is_forwarded()) failed: Object must not be forwarded
#
# JRE version: Java(TM) SE Runtime Environment (8.0_371) (build 1.8.0_371-b11)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.371-b11 mixed mode linux-amd64 compressed oops)
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /home/alex/projects/ClassReducer/Main/target/classes/hs_err_pid32516.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
Aborted


---------- BEGIN SOURCE ----------
public class Case {
    public Object[][][] objectArray = new Object[256][256][4];

    public static void main(String[] args) {
        Case c = new Case();
        byte[] bytes = new byte[128 * 1024 * 1024];
        main(args);
    }
}
---------- END SOURCE ----------

FREQUENCY : always