7129312: BufferedInputStream calculates negative array size with large streams and mark
Reviewed-by: alanb
diff --git a/test/java/io/BufferedInputStream/LargeCopyWithMark.java b/test/java/io/BufferedInputStream/LargeCopyWithMark.java
new file mode 100644
index 0000000..2555a1f
--- /dev/null
+++ b/test/java/io/BufferedInputStream/LargeCopyWithMark.java
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/* @test
+ * @bug 7129312
+ * @summary BufferedInputStream calculates negative array size with large
+ * streams and mark
+ * @library /lib/testlibrary
+ * @run main/othervm LargeCopyWithMark
+ */
+
+import java.io.BufferedInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import static jdk.testlibrary.ProcessTools.*;
+
+
+public class LargeCopyWithMark {
+
+ public static void main(String[] args) throws Exception {
+ if (! System.getProperty("os.arch").contains("64")) {
+ System.out.println("Test runs on 64 bit platforms");
+ return;
+ }
+ ProcessBuilder pb = createJavaProcessBuilder("-Xmx4G",
+ "-ea:LargeCopyWithMark$Child",
+ "LargeCopyWithMark$Child");
+ int res = pb.inheritIO().start().waitFor();
+ if (res != 0) {
+ throw new AssertionError("Test failed: exit code = " + res);
+ }
+ }
+
+ public static class Child {
+ static final int BUFF_SIZE = 8192;
+ static final int BIS_BUFF_SIZE = Integer.MAX_VALUE / 2 + 100;
+ static final long BYTES_TO_COPY = 2L * Integer.MAX_VALUE;
+
+ static {
+ assert BIS_BUFF_SIZE * 2 < 0 : "doubling must overflow";
+ }
+
+ public static void main(String[] args) throws Exception {
+ byte[] buff = new byte[BUFF_SIZE];
+
+ try (InputStream myis = new MyInputStream(BYTES_TO_COPY);
+ InputStream bis = new BufferedInputStream(myis, BIS_BUFF_SIZE);
+ OutputStream myos = new MyOutputStream()) {
+
+ // will require a buffer bigger than BIS_BUFF_SIZE
+ bis.mark(BIS_BUFF_SIZE + 100);
+
+ for (;;) {
+ int count = bis.read(buff, 0, BUFF_SIZE);
+ if (count == -1)
+ break;
+ myos.write(buff, 0, count);
+ }
+ } catch (java.lang.NegativeArraySizeException e) {
+ e.printStackTrace();
+ System.exit(11);
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ }
+ }
+}
+
+class MyInputStream extends InputStream {
+ private long bytesLeft;
+ public MyInputStream(long bytesLeft) {
+ this.bytesLeft = bytesLeft;
+ }
+ @Override public int read() throws IOException {
+ return 0;
+ }
+ @Override public int read(byte[] b) throws IOException {
+ return read(b, 0, b.length);
+ }
+ @Override public int read(byte[] b, int off, int len) throws IOException {
+ if (bytesLeft <= 0)
+ return -1;
+ long result = Math.min(bytesLeft, (long)len);
+ bytesLeft -= result;
+ return (int)result;
+ }
+ @Override public int available() throws IOException {
+ return (bytesLeft > 0) ? 1 : 0;
+ }
+}
+
+class MyOutputStream extends OutputStream {
+ @Override public void write(int b) throws IOException {}
+ @Override public void write(byte[] b) throws IOException {}
+ @Override public void write(byte[] b, int off, int len) throws IOException {}
+}