Clojure

[java.lang.ClassFormatError: Duplicate method name&signature] when using gen-class

Details

  • Type: Defect Defect
  • Status: Closed Closed
  • Priority: Major Major
  • Resolution: Declined
  • Affects Version/s: Release 1.3
  • Fix Version/s: None
  • Component/s: None
  • Labels:
  • Environment:
    $ java -version
    java version "1.6.0_29"
    Java(TM) SE Runtime Environment (build 1.6.0_29-b11-402-11M3527)
    Java HotSpot(TM) 64-Bit Server VM (build 20.4-b02-402, mixed mode)

Description

Hi,

When extending a class that defines a method with the signature "public void load();", I get the following load time error:

java.lang.ClassFormatError: Duplicate method name&signature

Looking into javap, I see that in fact gen-class is generating two entries for the load method. Prefix does not help in this case, as the defined load method is generated anyway.

Cheers,

  • Daniel

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Daniel Ribeiro added a comment -

Hi,

I've create this small sample project to exemplify the bug ocurring: https://github.com/danielribeiro/ClojureBugReport

Cheers,

  • Daniel
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Daniel Ribeiro added a comment - Hi, I've create this small sample project to exemplify the bug ocurring: https://github.com/danielribeiro/ClojureBugReport Cheers,
  • Daniel
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Daniel Ribeiro added a comment -

Note that the name load is not special: it works with any abstract method, no matter the name.

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Daniel Ribeiro added a comment - Note that the name load is not special: it works with any abstract method, no matter the name.
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Daniel Ribeiro added a comment -

Not a bug: I was declaring the method load, which was already defined on the abstract class. The docs do mention this:

http://clojuredocs.org/clojure_core/clojure.core/gen-class

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Daniel Ribeiro added a comment - Not a bug: I was declaring the method load, which was already defined on the abstract class. The docs do mention this: http://clojuredocs.org/clojure_core/clojure.core/gen-class
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Stuart Sierra added a comment -

Closed as not-a-bug.

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Stuart Sierra added a comment - Closed as not-a-bug.

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Dates

  • Created:
    Updated:
    Resolved:
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