Unhandled Java exception in Ripper on inline comments #4792
Description
Environment
$jruby -v
jruby 9.1.13.0 (2.3.3) 2017-09-06 8e1c115 OpenJDK 64-Bit Server VM 25.131-b11 on 1.8.0_131-8u131-b11-0ubuntu1.16.10.2-b11 +jit [linux-x86_64]
$ uname -a
Linux platypus 4.8.0-59-generic #64-Ubuntu SMP Thu Jun 29 19:38:34 UTC 2017 x86_64 x86_64 x86_64 GNU/LinuxTest file (verbatim):
%w[-1]
.map(&:to_i) # FIXME
.select(&:positive?)Test script:
require 'ripper'
Ripper.sexp(File.read('test.rb'), 'test.rb')Expected Behavior
No error.
Actual Behavior
Unhandled Java exception: java.lang.NullPointerException
java.lang.NullPointerException: null
dispatchDelayedToken at org/jruby/ext/ripper/RipperLexer.java:767
yylex at org/jruby/ext/ripper/RipperLexer.java:1077
nextToken at org/jruby/ext/ripper/RipperLexer.java:360
yyparse at org/jruby/ext/ripper/RipperParser.java:1520
yyparse at org/jruby/ext/ripper/RipperParser.java:1471
parse at org/jruby/ext/ripper/RipperParserBase.java:78
parse at org/jruby/ext/ripper/RubyRipper.java:327
call at org/jruby/ext/ripper/RubyRipper$INVOKER$i$0$0$parse.gen:-1
cacheAndCall at org/jruby/runtime/callsite/CachingCallSite.java:318
call at org/jruby/runtime/callsite/CachingCallSite.java:131
processCall at org/jruby/ir/interpreter/InterpreterEngine.java:339
interpret at org/jruby/ir/interpreter/StartupInterpreterEngine.java:73
interpret at org/jruby/ir/interpreter/InterpreterEngine.java:89
INTERPRET_METHOD at org/jruby/internal/runtime/methods/MixedModeIRMethod.java:214
call at org/jruby/internal/runtime/methods/MixedModeIRMethod.java:200
call at org/jruby/internal/runtime/methods/DynamicMethod.java:208
cacheAndCall at org/jruby/runtime/callsite/CachingCallSite.java:358
call at org/jruby/runtime/callsite/CachingCallSite.java:195
invokeOther8:sexp at rip.rb:5
<main> at rip.rb:5
invokeWithArguments at java/lang/invoke/MethodHandle.java:627
load at org/jruby/ir/Compiler.java:95
runScript at org/jruby/Ruby.java:828
runNormally at org/jruby/Ruby.java:747
runNormally at org/jruby/Ruby.java:765
runFromMain at org/jruby/Ruby.java:578
doRunFromMain at org/jruby/Main.java:417
internalRun at org/jruby/Main.java:305
run at org/jruby/Main.java:232
main at org/jruby/Main.java:204
The exception is gone when I remove # FIXME inline comment.