/*
* 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 jakarta.el;
import org.junit.Test;
public class TesterImportHandlerPerformance {
/*
* This test is looking at the cost of looking up a class when the standard JSP package imports are present : -
* java . lang - jakarta . servlet - jakarta . servlet . http - jakarta . servlet . jsp
*
* Before optimisation , this test took ~ 4 . 6 s on markt ' s desktop After optimisation , this test took ~ 0 . 05 s on markt ' s
* desktop
*/
@Test
public void testBug62453() throws Exception {
long totalTime = 0 ;
for (int i = 0 ; i < 100000 ; i++) {
ImportHandler ih = new ImportHandler();
ih.importPackage("jakarta.servlet" );
ih.importPackage("jakarta.servlet.http" );
ih.importPackage("jakarta.servlet.jsp" );
long start = System.nanoTime();
ih.resolveClass("unknown" );
long end = System.nanoTime();
totalTime += (end - start);
}
System.out.println("Time taken: " + totalTime + "ns" );
}
}
Messung V0.5 in Prozent C=94 H=70 G=82
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-09-28)
¤
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