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From: v_borchert@despammed.com (Volker Borchert)
Newsgroups: comp.lang.java.programmer
Subject: Re: Funny error message
Date: 18 May 2016 19:44:20 GMT
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Stefan Ram wrote:
>   I am using javac with some additional tools, and I hope that
>   it was not one of those tools that has disorted the error
>   message, but here I see:
> 
> Main.java:40: error: bad operand type String for unary operator '+++'
>     java.lang.System.out.println( + "" );
>                                   ^
> 1 error
> 
> Main.java:40: error: bad operand type String for unary operator '---'
>     java.lang.System.out.println( - "" );
>                                   ^
> 1 error
> 
>   If you have the compiler sources: The error message seems to
>   be produced in javac\comp\Resolve.java, which might call
>   into javac\util\JCDiagnostic.java, but at this point, I
>   don't have the time to hunt down exactly where a '+' becomes
>   a '+++'.

First thing I'd do would be to pipe above output through
od -ax to uncover any nonprintable characters, in particular,
backspace.

-- 

"I'm a doctor, not a mechanic." Dr Leonard McCoy <mccoy@ncc1701.starfleet.fed>
"I'm a mechanic, not a doctor." Volker Borchert  <v_borchert@despammed.com>