my @s340Strings = qw("abc", "cdef","yxx","zzz");

print "@s340Strings\n";

prints:
"abc", "cdef","yxx","zzz"
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Check your code. Please check if the array is a array of scalars or array of scalars and references. try hard-coding for test purpose the array value and see if you get past this line. That would mean the data is the culprit.

Hope it helps
Thanks!
Sapna