/*
* Licensed to the Apache Software Foundation ( ASF ) under one or more
* contributor license agreements . See the NOTICE file distributed with
* this work for additional information regarding copyright ownership .
* The ASF licenses this file to You under the Apache License , Version 2 . 0
* ( the " License " ) ; you may not use this file except in compliance with
* the License . You may obtain a copy of the License at
*
* http : //www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing , software
* distributed under the License is distributed on an " AS IS " BASIS ,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND , either express or implied .
* See the License for the specific language governing permissions and
* limitations under the License .
*/
package org.apache.tomcat.util.compat;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.tomcat.util.res.StringManager;
public class Jre21Compat extends Jre19Compat {
private static final Log log = LogFactory.getLog(Jre21Compat.class );
private static final StringManager sm = StringManager.getManager(Jre21Compat.class );
private static final Method nameMethod;
private static final Method startMethod;
private static final Method ofVirtualMethod;
static {
Class <?> c1 = null ;
Method m1 = null ;
Method m2 = null ;
Method m3 = null ;
try {
c1 = Class .forName("java.lang.Thread$Builder" );
m1 = c1.getMethod("name" , String.class , long .class );
m2 = c1.getMethod("start" , Runnable.class );
m3 = Thread .class .getMethod("ofVirtual" , (Class <?>[]) null );
} catch (ClassNotFoundException e) {
// Must be pre-Java 21
log.debug(sm.getString("jre21Compat.javaPre21" ), e);
} catch (ReflectiveOperationException e) {
// Should never happen
log.error(sm.getString("jre21Compat.unexpected" ), e);
}
nameMethod = m1;
startMethod = m2;
ofVirtualMethod = m3;
}
static boolean isSupported() {
return ofVirtualMethod != null ;
}
@Override
public Object createVirtualThreadBuilder(String name) {
try {
Object threadBuilder = ofVirtualMethod.invoke(null , (Object[]) null );
nameMethod.invoke(threadBuilder, name, Long .valueOf(0 ));
return threadBuilder;
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
throw new UnsupportedOperationException(e);
}
}
@Override
public void threadBuilderStart(Object threadBuilder, Runnable command) {
try {
startMethod.invoke(threadBuilder, command);
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
throw new UnsupportedOperationException(e);
}
}
}
Messung V0.5 in Prozent C=91 H=89 G=89
¤ Dauer der Verarbeitung: 0.4 Sekunden
¤
*© Formatika GbR, Deutschland