[antlr-interest] Question about Composite grammar

[Duy Tho Nguyen]

Currently , i have a problem with my grammar file ( Code too big ) so 
that i decide to split my grammar file in to some 2 smaller ones. It 
seemed to me that import function does not support more than 1 lexer 
grammar file
If i put like this :
import lexer_file_1,lexer_file_2;
it raise an error when generate code :

/
java.lang.ArrayIndexOutOfBoundsException: 3
    at org.antlr.tool.Rule.trackRuleReferenceInAlt(Rule.java:283)
    at org.antlr.tool.Grammar.altReferencesRule(Grammar.java:1867)
    at 
org.antlr.grammar.v2.DefineGrammarItemsWalker.atom(DefineGrammarItemsWalker.java:2096)
    at 
org.antlr.grammar.v2.DefineGrammarItemsWalker.element(DefineGrammarItemsWalker.java:1717)
    at 
org.antlr.grammar.v2.DefineGrammarItemsWalker.alternative(DefineGrammarItemsWalker.java:1571)
    at 
org.antlr.grammar.v2.DefineGrammarItemsWalker.block(DefineGrammarItemsWalker.java:1201)
    at 
org.antlr.grammar.v2.DefineGrammarItemsWalker.rule(DefineGrammarItemsWalker.java:924)
    at 
org.antlr.grammar.v2.DefineGrammarItemsWalker.rules(DefineGrammarItemsWalker.java:576)
    at 
org.antlr.grammar.v2.DefineGrammarItemsWalker.grammarSpec(DefineGrammarItemsWalker.java:361)
    at 
org.antlr.grammar.v2.DefineGrammarItemsWalker.grammar(DefineGrammarItemsWalker.java:148)
    at org.antlr.tool.Grammar.defineGrammarSymbols(Grammar.java:665)
    at 
org.antlr.tool.CompositeGrammar.defineGrammarSymbols(CompositeGrammar.java:351)
    at org.antlr.tool.Grammar.setGrammarContent(Grammar.java:578)
    at 
org.antlr.works.grammar.antlr.ANTLRGrammarEngineImpl.createNewGrammar(Unknown 
Source)
    at 
org.antlr.works.grammar.antlr.ANTLRGrammarEngineImpl.createLexerGrammar(Unknown 
Source)
    at 
org.antlr.works.grammar.antlr.ANTLRGrammarEngineImpl.createGrammars(Unknown 
Source)
    at 
org.antlr.works.grammar.antlr.ANTLRGrammarEngineImpl.analyze(Unknown Source)
    at org.antlr.works.grammar.engine.GrammarEngineImpl.analyze(Unknown 
Source)
    at org.antlr.works.debugger.local.DBLocal.analyzeGrammar(Unknown Source)
    at 
org.antlr.works.debugger.local.DBLocal.generateAndCompileGrammar(Unknown 
Source)
    at org.antlr.works.debugger.local.DBLocal.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

/Does anyone get this problem before ? Please help me with it . If you 
need some more detail , please ask me .

Kinds regard
/
/
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