antlr4-java:GrammarFuzzer: Security exception in org.antlr.v4.parse.ANTLRParser.block

Detailed Report: https://oss-fuzz.com/testcase?key=6443142021185536 Project: antlr4-java Fuzzing Engine: libFuzzer Fuzz Target: GrammarFuzzer Job Type: libfuzzerasanantlr4-java Platform Id: linux Crash Type: Security exception Crash Address: Crash State: org.antlr.v4.parse.ANTLRParser.block...