50 lines
1.8 KiB
Java
50 lines
1.8 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package javax.el;
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import org.junit.Test;
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public class TesterImportHandlerPerformance {
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/*
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* This test is looking at the cost of looking up a class when the standard
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* JSP package imports are present:
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* - java.lang
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* - javax.servlet
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* - javax.servlet.http
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* - javax.servlet.jsp
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*
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* Before optimisation, this test took ~4.6s on markt's desktop
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* After optimisation, this test took ~0.05s on markt's desktop
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*/
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@Test
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public void testBug62453() throws Exception {
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long totalTime = 0;
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for (int i = 0; i < 100000; i++) {
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ImportHandler ih = new ImportHandler();
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ih.importPackage("javax.servlet");
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ih.importPackage("javax.servlet.http");
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ih.importPackage("javax.servlet.jsp");
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long start = System.nanoTime();
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ih.resolveClass("unknown");
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long end = System.nanoTime();
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totalTime += (end -start);
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}
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System.out.println("Time taken: " + totalTime + "ns");
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}
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}
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