1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 * 26 * ident "%Z%%M% %I% %E% SMI" 27 */ 28 29 import org.opensolaris.os.dtrace.*; 30 31 /** 32 * Regression for 6506495 -DJAVA_DTRACE_MAX_CONSUMERS=N for any N < 8 33 * is treated as if it were 8. 34 */ 35 public class TestMaxConsumers { 36 static final String MAX_CONSUMERS_PROPERTY_NAME = 37 "JAVA_DTRACE_MAX_CONSUMERS"; 38 39 static Integer 40 getIntegerProperty(String name) 41 { 42 Integer value = null; 43 String property = System.getProperty(name); 44 if (property != null && property.length() != 0) { 45 try { 46 value = Integer.parseInt(property); 47 } catch (NumberFormatException e) { 48 e.printStackTrace(); 49 } 50 } 51 return value; 52 } 53 54 public static void 55 main(String[] args) 56 { 57 Integer property = getIntegerProperty(MAX_CONSUMERS_PROPERTY_NAME); 58 int max = (property == null ? 0 : property); 59 int n = (property == null ? 11 : (max < 1 ? 1 : max)); 60 61 Consumer[] consumers = new Consumer[n]; 62 try { 63 for (int i = 0; i < n; ++i) { 64 consumers[i] = new LocalConsumer(); 65 consumers[i].open(); 66 } 67 for (int i = 0; i < n; ++i) { 68 consumers[i].close(); 69 } 70 for (int i = 0; i < n; ++i) { 71 consumers[i] = new LocalConsumer(); 72 consumers[i].open(); 73 } 74 } catch (Exception e) { 75 e.printStackTrace(); 76 System.exit(1); 77 } 78 79 try { 80 Consumer consumer = new LocalConsumer(); 81 consumer.open(); 82 if (max > 0) { 83 System.out.println("Error: " + (max + 1) + " > " + 84 MAX_CONSUMERS_PROPERTY_NAME); 85 } else { 86 System.out.println("Success"); 87 } 88 consumer.close(); 89 } catch (Exception e) { 90 System.out.println("Success"); 91 } finally { 92 for (int i = 0; i < n; ++i) { 93 consumers[i].close(); 94 } 95 } 96 } 97 } 98