/*
* Copyright ( c ) 2010 , 2021 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
import java.util.Set;
import javax.annotation.processing.*;
import javax.lang.model.element.*;
import javax.lang.model.util.ElementFilter;
import javax.lang.model.SourceVersion;
@SupportedAnnotationTypes("*" )
public class MyProcessor extends AbstractProcessor {
private Messager messager;
public void init(ProcessingEnvironment processingEnv) {
this .messager = processingEnv.getMessager();
}
public boolean process(Set<? extends TypeElement> tes, RoundEnvironment renv) {
if (!renv.processingOver()) {
for (TypeElement e : ElementFilter.typesIn(renv.getRootElements())) {
for (TypeParameterElement tp : e.getTypeParameters()) {
if (tp.getSimpleName().toString().length() > 1 ) {
messager.printWarning("Type param names should be of length 1" , tp);
}
}
}
}
return true ;
}
public SourceVersion getSupportedSourceVersion() {
return SourceVersion.latest();
}
}
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