vm/tests/smoke/outofmemory/Int.java

/*
 *  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.
 */
/** 
 * @author Salikh Zakirov
 */  
package outofmemory;

/**
 * Out of memory tests have no dependecy on class library.
 */
public class Int {
    public static final int N = 10;
    public static void main (String[] args) {
        try {
            int size = 1024;
            java.util.ArrayList a = new java.util.ArrayList(1024);
            while (size > 128) {
                try {
                    byte b[] = new byte[size];
                    b[0] = 1;
                    b[b.length-1] = 2;
                    a.add(b);
                    size *= 2;
                    System.out.print("+"); System.out.flush();
                } catch (OutOfMemoryError e) {
                    try {
                        size /= 2;
                        System.out.print("-"); System.out.flush();
                    } catch (OutOfMemoryError f) {
                    }
                }
            }

            a = null;
            System.out.println(); System.out.flush();
            System.out.println("\nPASS"); System.out.flush();

        } catch (Throwable e) {
            e.printStackTrace();
        }
    }
}