/*
* Copyright ( c ) 2012 , 2015 , 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 .
*
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*/
/*
* @ test
* @ bug 7142086
* @ summary performance problem in Check . checkOverrideClashes ( . . . )
* @ modules jdk . compiler
* @ run main / timeout = 10 T7142086
*/
import com.sun.source.util.JavacTask;
import java.net.URI;
import java.util.List;
import java.util.ArrayList;
import java.util.Locale;
import javax.tools.Diagnostic;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileObject;
import javax.tools.SimpleJavaFileObject;
import javax.tools.StandardJavaFileManager;
import javax.tools.ToolProvider;
public class T7142086 {
final static int N_METHODS = 1000 ;
static class TestClass extends SimpleJavaFileObject {
String methTemplate = "abstract void m(A#N p);" ;
String classTemplate = "abstract class Test { #M }" ;
String source;
public TestClass() {
super (URI.create("myfo:/Test.java" ), JavaFileObject.Kind.SOURCE);
StringBuilder buf = new StringBuilder();
for (int i = 0 ; i < N_METHODS ; i++) {
buf.append(methTemplate.replace("#N" , String.valueOf(i)));
buf.append("\n" );
}
source = classTemplate.replace("#M" , buf.toString());
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return source;
}
}
static class AnSource extends SimpleJavaFileObject {
String classTemplate = "abstract class A#N { }" ;
String source;
public AnSource(int n) {
super (URI.create("myfo:/Test.java" ), JavaFileObject.Kind.SOURCE);
source = classTemplate.replace("#N" , String.valueOf(n));
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return source;
}
}
public static void main(String... args) throws Exception {
ArrayList<JavaFileObject> sources = new ArrayList<>();
for (int i = 0 ; i < N_METHODS ; i++) {
sources.add(new AnSource(i));
}
sources.add(new TestClass());
new T7142086().run(sources);
}
void run(List<JavaFileObject> sources) throws Exception {
DiagnosticChecker dc = new DiagnosticChecker();
JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
try (StandardJavaFileManager fm = comp.getStandardFileManager(null , null , null )) {
JavacTask ct = (JavacTask)comp.getTask(null , fm, dc,
null , null , sources);
ct.analyze();
}
}
static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {
boolean errorFound;
public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
throw new AssertionError("unexpected diagnostic: " + diagnostic.getMessage(Locale.getDefault()));
}
}
}
}
Messung V0.5 in Prozent C=92 H=92 G=91
¤ Dauer der Verarbeitung: 0.3 Sekunden
¤
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