1 /* 2 * Copyright (c) 2008, 2009, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 6448405 6519513 6745225 27 * @summary static HashMap cache in LineBreakMeasurer can grow wihout bounds 28 * @run main/othervm/timeout=600 -client -Xms16m -Xmx16m FRCTest 29 */ 30 import java.awt.*; 31 import java.awt.image.*; 32 import java.awt.font.*; 33 import java.awt.geom.*; 34 import java.text.*; 35 import java.util.Hashtable; 36 37 public class FRCTest { 38 39 static AttributedString vanGogh = new AttributedString( 40 "Many people believe that Vincent van Gogh painted his best works " + 41 "during the two-year period he spent in Provence. Here is where he " + 42 "painted The Starry Night--which some consider to be his greatest " + 43 "work of all. However, as his artistic brilliance reached new " + 44 "heights in Provence, his physical and mental health plummeted. ", 45 new Hashtable()); 46 47 public static void main(String[] args) { 48 49 // First test the behaviour of Graphics2D.getFontRenderContext(); 50 BufferedImage bi = new BufferedImage(1, 1, BufferedImage.TYPE_INT_RGB); 51 Graphics2D g2d = bi.createGraphics(); 52 AffineTransform g2dTx = new AffineTransform(2,0,2,0,1,1); 53 g2d.setTransform(g2dTx); 54 AffineTransform frcTx = g2d.getFontRenderContext().getTransform(); 55 AffineTransform frcExpected = new AffineTransform(2,0,2,0,0,0); 56 if (!frcTx.equals(frcExpected)) { 57 throw new RuntimeException("FRC Tx may have translate?"); 58 } 59 60 // Now test that using different translates with LBM is OK 61 // This test doesn't prove a lot since showing a leak really 62 // requires a basher test that can run for a long time. 63 for (int x=0;x<100;x++) { 64 for (int y=0;y<100;y++) { 65 AttributedCharacterIterator aci = vanGogh.getIterator(); 66 AffineTransform tx = AffineTransform.getTranslateInstance(x, y); 67 FontRenderContext frc = new FontRenderContext(tx, false, false); 68 LineBreakMeasurer lbm = new LineBreakMeasurer(aci, frc); 69 lbm.setPosition(aci.getBeginIndex()); 70 while (lbm.getPosition() < aci.getEndIndex()) { 71 lbm.nextLayout(100f); 72 } 73 } 74 } 75 76 for (int x=0;x<25;x++) { 77 for (int y=0;y<25;y++) { 78 AttributedCharacterIterator aci = vanGogh.getIterator(); 79 double rot = Math.random()*.4*Math.PI - .2*Math.PI; 80 AffineTransform tx = AffineTransform.getRotateInstance(rot); 81 FontRenderContext frc = new FontRenderContext(tx, false, false); 82 LineBreakMeasurer lbm = new LineBreakMeasurer(aci, frc); 83 lbm.setPosition(aci.getBeginIndex()); 84 while (lbm.getPosition() < aci.getEndIndex()) { 85 lbm.nextLayout(100f); 86 } 87 } 88 } 89 } 90 }