JRuby crashes instead of reporting a syntax error in sequential rescues where the error variable wasn't defined for the first one #6761
Description
Excuse the messy title, hopefully the example make it clearer 😅
Environment Information
Provide at least:
- JRuby version (
jruby -v) and command line (flags, JRUBY_OPTS, etc):jruby 9.2.19.0 (2.5.8) 2021-06-15 55810c552b OpenJDK 64-Bit Server VM 11.0.12+7 on 11.0.12+7 +jit [linux-x86_64] - Operating system and platform (e.g.
uname -a):Linux MYHOSTNAME 5.13.4-arch1-1 #1 SMP PREEMPT Tue, 20 Jul 2021 16:58:51 +0000 x86_64 GNU/Linux
Expected Behavior
Given this ruby file with a syntax error:
begin
# no-op
rescue StandardError =>
# nothing after =>, a variable name would be expected
abort('error happened')
rescue StandardError => e
# We need another rescue
endThis is a simplified case of a mistake I made in real code. I would expect a syntax error to be displayed when attempting to run this as I get with ruby 3.0.1p64 (2021-04-05 revision 0fb782ee38) [x86_64-linux]
$ ruby /tmp/crash.rb
/tmp/crash.rb:5: syntax error, unexpected '\n', expecting '.' or &. or :: or '['The "expecting" part isn't totally right, but at least we're told what and where the error is.
Actual Behavior
$ jruby /tmp/crash.rb
Unhandled Java exception: java.lang.NegativeArraySizeException: -1
java.lang.NegativeArraySizeException: -1
prepareMessage at org/jruby/lexer/yacc/SyntaxException.java:111
<init> at org/jruby/lexer/yacc/SyntaxException.java:96
compile_error at org/jruby/lexer/yacc/RubyLexer.java:390
yyerror at org/jruby/parser/ParserSupport.java:1209
yyparse at org/jruby/parser/RubyParser.java:1659
yyparse at org/jruby/parser/RubyParser.java:1589
parse at org/jruby/parser/RubyParser.java:5744
parse at org/jruby/parser/Parser.java:133
parse at org/jruby/parser/Parser.java:108
parseFileAndGetAST at org/jruby/Ruby.java:2527
parseFileFromMainAndGetAST at org/jruby/Ruby.java:2520
parseFileFromMain at org/jruby/Ruby.java:2504
parseFromMain at org/jruby/Ruby.java:991
runFromMain at org/jruby/Ruby.java:937
doRunFromMain at org/jruby/Main.java:400
internalRun at org/jruby/Main.java:292
run at org/jruby/Main.java:234
main at org/jruby/Main.java:206This isn't blocking me or anything, but I figured I'd report anyway. Thanks!