Is it an eclipse or maven-compiler-plugin bug, the generics Class cast issue?

Question

I have a code like this:

protected  T doSomething(String someParam, Class clazz) {
...
}

which I use in a TestCase class:

Answer 1

Which compiler are you using? In this case http://code.google.com/p/jclouds/issues/detail?id=461 the openjdk seems to reveal the incompatible types while the sun jdk ignores it and compiles.

Answer 2

A workaround is using eclipse compiler in maven as described at Using Eclipse Java Compiler (ecj) in maven builds

Answer 3

This is a known bug in Eclipse: 333011: [compiler][1.5] Eclipse compiles codes which javac rejects: incompatible types . Feel free to vote for the bug and add your use case to it.

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There are situations when javac and Eclipse disagree, and you should report them as bugs. It is preferred to have a standalone test case of as few Java files as possible which can be copy/pasted in Eclipse and compiled using javac from the command line without any dependencies.