class switcheroo

[Michael Mendelson]

Hi, I'm wondering if anyone can help with this problem...
I was storing a bunch of objects in my own class that inherits from HashMap. Recently, I found that I needed these objects to be presented IN ORDER.
So I switched my custom class to inherit from HashTree, and made the appropriate minor tweakings in my source. Then I re-compiled the whole project, just to be sure. It compiled fine.
When I ran the project, I got this error:
<code>
java.lang.VerifyError: (class: RunKeysAnalysis, method: signature: (Ljava/lang/String V) Incompatible object argument for function call
</code>
Can anyone make sense of this?

[Dale DeMott]

Can you put up a bit of your source to help us understand more?
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What's this H2SO4 doing in my fridge?? ( thud )

[Jim Yingst]

Just a guess - try deleting all your .class files, then recompile with javac. That way you'll guarantee that all the .class files were generated from the latest code.