Different error messages in eclim and eclipse

[Nunki]

Hello,

I have a strange problem, the error message in eclim (in Vim8) and Eclipse are different!

Code is: input = new BufferedReader(reader);

Eclipse says:
Exception in thread "main" java.lang.Error: Unresolved compilation problem:
    The constructor BufferedReader(DataInputStream) is undefined

However, eclim running in Vim via a plugin reports:
error| error: incompatible types: DataInputStream cannot be converted to Reader

Both error messages refer to the same line of code. But why are they different?

Thanks  and best regards!

[Nunki]

I probably found the cause - the Syntastic plugin might have interfered and put the error messages.