Compiler warnings, when building project with maven dependency to antlr-3.5.jar

[SierraGolf]

We have a dependency to the antlr project in version 3.5, which has a dependency to antlr-2.7.7.jar. When building the project we receive this warning:

[INFO] warning: Ignoring InnerClasses attribute for an anonymous inner class
[INFO] (antlr.build.ANTLR$1) that doesn't come with an
[INFO] associated EnclosingMethod attribute. This class was probably produced by a
[INFO] compiler that did not target the modern .class file format. The recommended
[INFO] solution is to recompile the class from source, using an up-to-date compiler
[INFO] and without specifying any "-target" type options. The consequence of ignoring
[INFO] this warning is that reflective operations on this class will incorrectly
[INFO] indicate that it is *not* an inner class.
[INFO] warning: Ignoring InnerClasses attribute for an anonymous inner class
[INFO] (antlr.debug.misc.ASTFrame$1) that doesn't come with an
[INFO] associated EnclosingMethod attribute. This class was probably produced by a
[INFO] compiler that did not target the modern .class file format. The recommended
[INFO] solution is to recompile the class from source, using an up-to-date compiler
[INFO] and without specifying any "-target" type options. The consequence of ignoring
[INFO] this warning is that reflective operations on this class will incorrectly
[INFO] indicate that it is *not* an inner class.
[INFO] warning: Ignoring InnerClasses attribute for an anonymous inner class
[INFO] (antlr.TokenStreamRewriteEngine$1) that doesn't come with an
[INFO] associated EnclosingMethod attribute. This class was probably produced by a
[INFO] compiler that did not target the modern .class file format. The recommended
[INFO] solution is to recompile the class from source, using an up-to-date compiler
[INFO] and without specifying any "-target" type options. The consequence of ignoring
[INFO] this warning is that reflective operations on this class will incorrectly
[INFO] indicate that it is *not* an inner class.

It seems that the antlr-2.7.7.jar was build with an very old compiler. Is there a way to get rid of this warning?

[sharwell]

What is your specific dependency in your pom file?

I doubt there is anything that can be done about this.

[SierraGolf]

<dependency>
    <groupId>org.antlr</groupId>
    <artifactId>antlr</artifactId>
    <version>3.5</version>
</dependency>

[sharwell]

I'll mark the StringTemplate 3 dependency as <optional>true</optional> for the next release, which will transitively apply to the ANTLR 2 dependency.

[SierraGolf]

Thanks, any estimates when this will be?

[sharwell]

Not yet. I've been meaning to release an update to this and ANTLRWorks 1.5 to address some minor bugs, but we haven't scheduled a release date yet.