I am facing Issues after migrating Antlr version 3.1.1 to Antlr 3.3 (getting NoSuchMethodError: CommonTreeNodeStream.getNodeIndex)

Currently im using ANTLR V3.1.1,now i have migrated to ANTLR V3.3. after that i'm getting the following error:

Unexpected exception occur开发者_如何学运维red: java.lang.NoSuchMethodError: org.antlr.runtime.tree.CommonTreeNodeStream.getNodeIndex(Ljava/lang/Object;)I at *.expression.antlr.FocusCommonTreeNodeStream.getNodeIndex(FocusCommonTreeNodeStream.java:16)

Please help me on this issue.. Thanks in advance..!!

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Okay, by looking at the comments under your original post, I'll post the answer here for completeness sake, in case people find this Q&A after searching the web.

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The reason you get this exception is because you simply replaced the ANTLR jar and did not regenerate a lexer and parser from your grammar. The compiled lexer and parser files that were generated by ANTLR v3.1.1 need the ANTLR v3.1.1 run-time classes. They won't (necessarily) work with other ANTLR run-time versions.

So, if you want to upgrade to ANTLR v3.3, you'll need to re-generate a (new) lexer and parser from your grammar file using the org.antlr.Tool from ANTLR v3.3.