Hi,
java.lang.NoSuchMethodError is an error from the JVM. In Java it is
thrown if the class you compiled against has changed and the old target
of the method call no longer exists.
Groovy does not know about any @Beta annotation by default. Did the
error happen with static compilation? Because with dynamic Groovy it is
almost impossible to have this error... unless of course, the error is a
faulty internal non-dynamic code.
A trace to see what code actually made the method call should shed light
on the issue. I still thin the classpath was the problem. You changing
the source surely made you do a classpath change as well. It is very
possible, that you "shadowed" the offending poi jar with that.
bye blackdrag
On 06.11.2015 15:31, Ralph Johnson wrote:
Thanks for the advice on reading error messages.
I am using the trunk of Poi, so it is the latest. I rechecked the
classpath and that wasn't the problem. The problem turned out to be
that the methods were annotated with @Beta, and that must have confused
Groovy in some way. Perhaps the annotation changes the method name so
that Groovy's method lookup can't find it. In any case, since I had
source, I got rid of the annotation and then my program could find the
method.
The Beta annotation was developed by Google, but it appears that other
projects are using it, so it would be unfortunate if Groovy had trouble
with Java code that used the Beta annotation.
-Ralph Johnson
On Fri, Nov 6, 2015 at 7:01 AM, Winnebeck, Jason
<jason.winneb...@windstream.com <mailto:jason.winneb...@windstream.com>>
wrote:
It’s in there. For the primitive types, there’s no semi-colon at the
end. For example void f(int, int, int) has signature f(III)V. With
the L (object) type, it’s L<class>; with semi-colon at end. You can
see L*;IL*; in there. That I before the second L is the int argument
you are looking for.____
__ __
As for why you get no such method error, I don’t know. I use POI in
my project and the version of POI that I have does not have this
method at all. On the website
https://poi.apache.org/apidocs/org/apache/poi/xssf/usermodel/XSSFSheet.html#copyRows%28java.util.List,%20int,%20org.apache.poi.ss.usermodel.CellCopyPolicy%29,
it does has a signature you are trying to call.____
__ __
If you think your POI is new enough to have that method, a common
issue I’ve seen in cases like this is that accidentially multiple
versions of a library (POI in this case) are on the classpath at the
same time and you’re really loading an older version than you think.____
__ __
Jason____
__ __
*From:*rjohnson.u...@gmail.com <mailto:rjohnson.u...@gmail.com>
[mailto:rjohnson.u...@gmail.com <mailto:rjohnson.u...@gmail.com>]
*On Behalf Of *Ralph Johnson
*Sent:* Friday, November 06, 2015 5:29 AM
*To:* users@groovy.incubator.apache.org
<mailto:users@groovy.incubator.apache.org>
*Subject:* wrong error message?____
__ __
I'm calling a Java library (Poi) from Groovy. I get a "no such
method" error that says to me that I am passing two arguments, but I
am really passing three. My code is____
__ __
int i -> sheet.copyRows([sourceRow], i, new CellCopyPolicy())____
and the error message is____
__ __
java.lang.NoSuchMethodError:
org.apache.poi.xssf.usermodel.XSSFSheet.copyRows(Ljava/util/List;ILorg/apache/poi/ss/usermodel/CellCopyPolicy;)V____
__ __
The way I read it, I am giving copyRows two arguments, a List and a
CellCopyPolicy. It didn't seem to see the integer that was the
second argument.____
__ __
Can anyone see what I am doing wrong? I can give more context, but
it is just as likely to confuse as to illuminate.____
__ __
-Ralph Johnson____
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