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From qi...@apache.org
Subject svn commit: r721075 - in /harmony/enhanced/classlib/trunk/modules/luni/src: main/java/java/io/BufferedInputStream.java test/api/common/org/apache/harmony/luni/tests/java/io/BufferedInputStreamTest.java
Date Thu, 27 Nov 2008 03:24:38 GMT
Author: qiuxx
Date: Wed Nov 26 19:24:37 2008
New Revision: 721075

URL: http://svn.apache.org/viewvc?rev=721075&view=rev
Log:
Apply for HARMONY-6014,([classlib][luni] BufferedInputStream can not be closed in another thread)

Modified:
    harmony/enhanced/classlib/trunk/modules/luni/src/main/java/java/io/BufferedInputStream.java
    harmony/enhanced/classlib/trunk/modules/luni/src/test/api/common/org/apache/harmony/luni/tests/java/io/BufferedInputStreamTest.java

Modified: harmony/enhanced/classlib/trunk/modules/luni/src/main/java/java/io/BufferedInputStream.java
URL: http://svn.apache.org/viewvc/harmony/enhanced/classlib/trunk/modules/luni/src/main/java/java/io/BufferedInputStream.java?rev=721075&r1=721074&r2=721075&view=diff
==============================================================================
--- harmony/enhanced/classlib/trunk/modules/luni/src/main/java/java/io/BufferedInputStream.java (original)
+++ harmony/enhanced/classlib/trunk/modules/luni/src/main/java/java/io/BufferedInputStream.java Wed Nov 26 19:24:37 2008
@@ -21,8 +21,8 @@
 
 /**
  * <code>BufferedInputStream</code> is a class which takes an input stream and
- * <em>buffers</em> the input. In this way, costly interaction with the
- * original input stream can be minimized by reading buffered amounts of data
+ * <em>buffers</em> the input. In this way, costly interaction with the original
+ * input stream can be minimized by reading buffered amounts of data
  * infrequently. The drawback is that extra space is required to hold the buffer
  * and that copying takes place when reading that buffer.
  * 
@@ -32,7 +32,7 @@
     /**
      * The buffer containing the current bytes read from the target InputStream.
      */
-    protected byte[] buf;
+    protected volatile byte[] buf;
 
     /**
      * The total number of bytes inside the byte array <code>buf</code>.
@@ -55,12 +55,10 @@
      */
     protected int pos;
 
-    private boolean closed = false;
-
     /**
      * Constructs a new <code>BufferedInputStream</code> on the InputStream
-     * <code>in</code>. The default buffer size (8Kb) is allocated and all
-     * reads can now be filtered through this stream.
+     * <code>in</code>. The default buffer size (8Kb) is allocated and all reads
+     * can now be filtered through this stream.
      * 
      * @param in
      *            the InputStream to buffer reads on.
@@ -101,11 +99,12 @@
      */
     @Override
     public synchronized int available() throws IOException {
-        if (buf == null) {
+        InputStream localIn = in; // 'in' could be invalidated by close()
+        if (buf == null || localIn == null) {
             // K0059=Stream is closed
             throw new IOException(Msg.getString("K0059")); //$NON-NLS-1$
         }
-        return count - pos + in.available();
+        return count - pos + localIn.available();
     }
 
     /**
@@ -116,19 +115,20 @@
      *             If an error occurs attempting to close this stream.
      */
     @Override
-    public synchronized void close() throws IOException {
-        if (null != in) {
-            super.close();
-            in = null;
-        }
+    public void close() throws IOException {
         buf = null;
-        closed = true;
+        InputStream localIn = in;
+        in = null;
+        if (localIn != null) {
+            localIn.close();
+        }
     }
 
-    private int fillbuf() throws IOException {
+    private int fillbuf(InputStream localIn, byte[] localBuf)
+            throws IOException {
         if (markpos == -1 || (pos - markpos >= marklimit)) {
             /* Mark position not set or exceeded readlimit */
-            int result = in.read(buf);
+            int result = localIn.read(localBuf);
             if (result > 0) {
                 markpos = -1;
                 pos = 0;
@@ -136,32 +136,35 @@
             }
             return result;
         }
-        if (markpos == 0 && marklimit > buf.length) {
-            /* Increase buffer size to accomodate the readlimit */
-            int newLength = buf.length * 2;
+        if (markpos == 0 && marklimit > localBuf.length) {
+            /* Increase buffer size to accommodate the readlimit */
+            int newLength = localBuf.length * 2;
             if (newLength > marklimit) {
                 newLength = marklimit;
             }
             byte[] newbuf = new byte[newLength];
-            System.arraycopy(buf, 0, newbuf, 0, buf.length);
-            buf = newbuf;
+            System.arraycopy(localBuf, 0, newbuf, 0, localBuf.length);
+            // Reassign buf, which will invalidate any local references
+            // FIXME: what if buf was null?
+            localBuf = buf = newbuf;
         } else if (markpos > 0) {
-            System.arraycopy(buf, markpos, buf, 0, buf.length - markpos);
+            System.arraycopy(localBuf, markpos, localBuf, 0, localBuf.length
+                    - markpos);
         }
         /* Set the new position and mark position */
         pos -= markpos;
         count = markpos = 0;
-        int bytesread = in.read(buf, pos, buf.length - pos);
+        int bytesread = localIn.read(localBuf, pos, localBuf.length - pos);
         count = bytesread <= 0 ? pos : pos + bytesread;
         return bytesread;
     }
 
     /**
      * Set a Mark position in this BufferedInputStream. The parameter
-     * <code>readLimit</code> indicates how many bytes can be read before a
-     * mark is invalidated. Sending reset() will reposition the Stream back to
-     * the marked position provided <code>readLimit</code> has not been
-     * surpassed. The underlying buffer may be increased in size to allow
+     * <code>readLimit</code> indicates how many bytes can be read before a mark
+     * is invalidated. Sending reset() will reposition the Stream back to the
+     * marked position provided <code>readLimit</code> has not been surpassed.
+     * The underlying buffer may be increased in size to allow
      * <code>readlimit</code> number of bytes to be supported.
      * 
      * @param readlimit
@@ -200,28 +203,40 @@
      */
     @Override
     public synchronized int read() throws IOException {
-        if (in == null) {
+        // Use local refs since buf and in may be invalidated by an
+        // unsynchronized close()
+        byte[] localBuf = buf;
+        InputStream localIn = in;
+        if (localBuf == null || localIn == null) {
             // K0059=Stream is closed
             throw new IOException(Msg.getString("K0059")); //$NON-NLS-1$
         }
 
         /* Are there buffered bytes available? */
-        if (pos >= count && fillbuf() == -1) {
+        if (pos >= count && fillbuf(localIn, localBuf) == -1) {
             return -1; /* no, fill buffer */
         }
+        // localBuf may have been invalidated by fillbuf
+        if (localBuf != buf) {
+            localBuf = buf;
+            if (localBuf == null) {
+                // K0059=Stream is closed
+                throw new IOException(Msg.getString("K0059")); //$NON-NLS-1$
+            }
+        }
 
         /* Did filling the buffer fail with -1 (EOF)? */
         if (count - pos > 0) {
-            return buf[pos++] & 0xFF;
+            return localBuf[pos++] & 0xFF;
         }
         return -1;
     }
 
     /**
-     * Reads at most <code>length</code> bytes from this BufferedInputStream
-     * and stores them in byte array <code>buffer</code> starting at offset
-     * <code>offset</code>. Answer the number of bytes actually read or -1 if
-     * no bytes were read and end of stream was encountered. If all the buffered
+     * Reads at most <code>length</code> bytes from this BufferedInputStream and
+     * stores them in byte array <code>buffer</code> starting at offset
+     * <code>offset</code>. Answer the number of bytes actually read or -1 if no
+     * bytes were read and end of stream was encountered. If all the buffered
      * bytes have been used, a mark has not been set, and the requested number
      * of bytes is larger than the receiver's buffer size, this implementation
      * bypasses the buffer and simply places the results directly into
@@ -242,7 +257,10 @@
     @Override
     public synchronized int read(byte[] buffer, int offset, int length)
             throws IOException {
-        if (closed) {
+        // Use local ref since buf may be invalidated by an unsynchronized
+        // close()
+        byte[] localBuf = buf;
+        if (localBuf == null) {
             // K0059=Stream is closed
             throw new IOException(Msg.getString("K0059")); //$NON-NLS-1$
         }
@@ -253,7 +271,9 @@
         if (length == 0) {
             return 0;
         }
-        if (null == buf) {
+        InputStream localIn = in;
+        if (localIn == null) {
+            // K0059=Stream is closed
             throw new IOException(Msg.getString("K0059")); //$NON-NLS-1$
         }
 
@@ -261,9 +281,9 @@
         if (pos < count) {
             /* There are bytes available in the buffer. */
             int copylength = count - pos >= length ? length : count - pos;
-            System.arraycopy(buf, pos, buffer, offset, copylength);
+            System.arraycopy(localBuf, pos, buffer, offset, copylength);
             pos += copylength;
-            if (copylength == length || in.available() == 0) {
+            if (copylength == length || localIn.available() == 0) {
                 return copylength;
             }
             offset += copylength;
@@ -278,24 +298,33 @@
              * If we're not marked and the required size is greater than the
              * buffer, simply read the bytes directly bypassing the buffer.
              */
-            if (markpos == -1 && required >= buf.length) {
-                read = in.read(buffer, offset, required);
+            if (markpos == -1 && required >= localBuf.length) {
+                read = localIn.read(buffer, offset, required);
                 if (read == -1) {
                     return required == length ? -1 : length - required;
                 }
             } else {
-                if (fillbuf() == -1) {
+                if (fillbuf(localIn, localBuf) == -1) {
                     return required == length ? -1 : length - required;
                 }
+                // localBuf may have been invalidated by fillbuf
+                if (localBuf != buf) {
+                    localBuf = buf;
+                    if (localBuf == null) {
+                        // K0059=Stream is closed
+                        throw new IOException(Msg.getString("K0059")); //$NON-NLS-1$
+                    }
+                }
+
                 read = count - pos >= required ? required : count - pos;
-                System.arraycopy(buf, pos, buffer, offset, read);
+                System.arraycopy(localBuf, pos, buffer, offset, read);
                 pos += read;
             }
             required -= read;
             if (required == 0) {
                 return length;
             }
-            if (in.available() == 0) {
+            if (localIn.available() == 0) {
                 return length - required;
             }
             offset += read;
@@ -304,18 +333,16 @@
 
     /**
      * Reset this BufferedInputStream to the last marked location. If the
-     * <code>readlimit</code> has been passed or no <code>mark</code> has
-     * been set, throw IOException. This implementation resets the target
-     * stream.
+     * <code>readlimit</code> has been passed or no <code>mark</code> has been
+     * set, throw IOException. This implementation resets the target stream.
      * 
      * @throws IOException
      *             If the stream is already closed or another IOException
      *             occurs.
      */
-
     @Override
     public synchronized void reset() throws IOException {
-        if (closed) {
+        if (buf == null) {
             // K0059=Stream is closed
             throw new IOException(Msg.getString("K0059")); //$NON-NLS-1$	
         }
@@ -341,7 +368,11 @@
      */
     @Override
     public synchronized long skip(long amount) throws IOException {
-        if (null == in) {
+        // Use local refs since buf and in may be invalidated by an
+        // unsynchronized close()
+        byte[] localBuf = buf;
+        InputStream localIn = in;
+        if (localBuf == null || localIn == null) {
             // K0059=Stream is closed
             throw new IOException(Msg.getString("K0059")); //$NON-NLS-1$
         }
@@ -358,7 +389,7 @@
 
         if (markpos != -1) {
             if (amount <= marklimit) {
-                if (fillbuf() == -1) {
+                if (fillbuf(localIn, localBuf) == -1) {
                     return read;
                 }
                 if (count - pos >= amount - read) {
@@ -372,6 +403,6 @@
             }
             markpos = -1;
         }
-        return read + in.skip(amount - read);
+        return read + localIn.skip(amount - read);
     }
 }

Modified: harmony/enhanced/classlib/trunk/modules/luni/src/test/api/common/org/apache/harmony/luni/tests/java/io/BufferedInputStreamTest.java
URL: http://svn.apache.org/viewvc/harmony/enhanced/classlib/trunk/modules/luni/src/test/api/common/org/apache/harmony/luni/tests/java/io/BufferedInputStreamTest.java?rev=721075&r1=721074&r2=721075&view=diff
==============================================================================
--- harmony/enhanced/classlib/trunk/modules/luni/src/test/api/common/org/apache/harmony/luni/tests/java/io/BufferedInputStreamTest.java (original)
+++ harmony/enhanced/classlib/trunk/modules/luni/src/test/api/common/org/apache/harmony/luni/tests/java/io/BufferedInputStreamTest.java Wed Nov 26 19:24:37 2008
@@ -1,443 +1,489 @@
-/*
- *  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.
- */
-
-package org.apache.harmony.luni.tests.java.io;
-
-import java.io.BufferedInputStream;
-import java.io.ByteArrayInputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import junit.framework.TestCase;
-import tests.support.Support_PlatformFile;
-
-public class BufferedInputStreamTest extends TestCase {
-
-    public String fileName;
-
-    private BufferedInputStream is;
-
-    private FileInputStream isFile;
-
-    byte[] ibuf = new byte[4096];
-
-    public String fileString = "Test_All_Tests\nTest_BufferedInputStream\nTest_java_io_BufferedOutputStream\nTest_java_io_ByteArrayInputStream\nTest_java_io_ByteArrayOutputStream\nTest_java_io_DataInputStream\nTest_java_io_File\nTest_java_io_FileDescriptor\nTest_java_io_FileInputStream\nTest_java_io_FileNotFoundException\nTest_java_io_FileOutputStream\nTest_java_io_FilterInputStream\nTest_java_io_FilterOutputStream\nTest_java_io_InputStream\nTest_java_io_IOException\nTest_java_io_OutputStream\nTest_java_io_PrintStream\nTest_java_io_RandomAccessFile\nTest_java_io_SyncFailedException\nTest_java_lang_AbstractMethodError\nTest_java_lang_ArithmeticException\nTest_java_lang_ArrayIndexOutOfBoundsException\nTest_java_lang_ArrayStoreException\nTest_java_lang_Boolean\nTest_java_lang_Byte\nTest_java_lang_Character\nTest_java_lang_Class\nTest_java_lang_ClassCastException\nTest_java_lang_ClassCircularityError\nTest_java_lang_ClassFormatError\nTest_java_lang_ClassLoader\nTest_java_lang_Cl
 assNotFoundException\nTest_java_lang_CloneNotSupportedException\nTest_java_lang_Double\nTest_java_lang_Error\nTest_java_lang_Exception\nTest_java_lang_ExceptionInInitializerError\nTest_java_lang_Float\nTest_java_lang_IllegalAccessError\nTest_java_lang_IllegalAccessException\nTest_java_lang_IllegalArgumentException\nTest_java_lang_IllegalMonitorStateException\nTest_java_lang_IllegalThreadStateException\nTest_java_lang_IncompatibleClassChangeError\nTest_java_lang_IndexOutOfBoundsException\nTest_java_lang_InstantiationError\nTest_java_lang_InstantiationException\nTest_java_lang_Integer\nTest_java_lang_InternalError\nTest_java_lang_InterruptedException\nTest_java_lang_LinkageError\nTest_java_lang_Long\nTest_java_lang_Math\nTest_java_lang_NegativeArraySizeException\nTest_java_lang_NoClassDefFoundError\nTest_java_lang_NoSuchFieldError\nTest_java_lang_NoSuchMethodError\nTest_java_lang_NullPointerException\nTest_java_lang_Number\nTest_java_lang_NumberFormatException\nTest_java_lang_
 Object\nTest_java_lang_OutOfMemoryError\nTest_java_lang_RuntimeException\nTest_java_lang_SecurityManager\nTest_java_lang_Short\nTest_java_lang_StackOverflowError\nTest_java_lang_String\nTest_java_lang_StringBuffer\nTest_java_lang_StringIndexOutOfBoundsException\nTest_java_lang_System\nTest_java_lang_Thread\nTest_java_lang_ThreadDeath\nTest_java_lang_ThreadGroup\nTest_java_lang_Throwable\nTest_java_lang_UnknownError\nTest_java_lang_UnsatisfiedLinkError\nTest_java_lang_VerifyError\nTest_java_lang_VirtualMachineError\nTest_java_lang_vm_Image\nTest_java_lang_vm_MemorySegment\nTest_java_lang_vm_ROMStoreException\nTest_java_lang_vm_VM\nTest_java_lang_Void\nTest_java_net_BindException\nTest_java_net_ConnectException\nTest_java_net_DatagramPacket\nTest_java_net_DatagramSocket\nTest_java_net_DatagramSocketImpl\nTest_java_net_InetAddress\nTest_java_net_NoRouteToHostException\nTest_java_net_PlainDatagramSocketImpl\nTest_java_net_PlainSocketImpl\nTest_java_net_Socket\nTest_java_net_Sock
 etException\nTest_java_net_SocketImpl\nTest_java_net_SocketInputStream\nTest_java_net_SocketOutputStream\nTest_java_net_UnknownHostException\nTest_java_util_ArrayEnumerator\nTest_java_util_Date\nTest_java_util_EventObject\nTest_java_util_HashEnumerator\nTest_java_util_Hashtable\nTest_java_util_Properties\nTest_java_util_ResourceBundle\nTest_java_util_tm\nTest_java_util_Vector\n";
-
-    /*
-     * @tests java.io.BufferedInputStream(InputStream)
-     */
-    public void test_ConstructorLjava_io_InputStream() {
-        try {
-            BufferedInputStream str = new BufferedInputStream(null);
-            str.read();
-            fail("Expected an IOException");
-        } catch (IOException e) {
-            // Expected
-        }
-    }
-
-    /*
-     * @tests java.io.BufferedInputStream(InputStream)
-     */
-    public void test_ConstructorLjava_io_InputStreamI() throws IOException {
-        try {
-            BufferedInputStream str = new BufferedInputStream(null, 1);
-            str.read();
-            fail("Expected an IOException");
-        } catch (IOException e) {
-            // Expected
-        }
-
-        // Test for method java.io.BufferedInputStream(java.io.InputStream, int)
-
-        // Create buffer with exact size of file
-        is = new BufferedInputStream(isFile, this.fileString.length());
-        // Ensure buffer gets filled by evaluating one read
-        is.read();
-        // Close underlying FileInputStream, all but 1 buffered bytes should
-        // still be available.
-        isFile.close();
-        // Read the remaining buffered characters, no IOException should
-        // occur.
-        is.skip(this.fileString.length() - 2);
-        is.read();
-        try {
-            // is.read should now throw an exception because it will have to
-            // be filled.
-            is.read();
-            fail("Exception should have been triggered by read()");
-        } catch (IOException e) {
-            // Expected
-        }
-
-        // regression test for harmony-2407
-        new MockBufferedInputStream(null);
-        assertNotNull(MockBufferedInputStream.buf);
-        MockBufferedInputStream.buf = null;
-        new MockBufferedInputStream(null, 100);
-        assertNotNull(MockBufferedInputStream.buf);
-    }
-
-    static class MockBufferedInputStream extends BufferedInputStream {
-        static byte[] buf;
-
-        MockBufferedInputStream(InputStream is) throws IOException {
-            super(is);
-            buf = super.buf;
-        }
-
-        MockBufferedInputStream(InputStream is, int size) throws IOException {
-            super(is, size);
-            buf = super.buf;
-        }
-    }
-
-    /**
-     * @tests java.io.BufferedInputStream#available()
-     */
-    public void test_available() throws IOException {
-        assertTrue("Returned incorrect number of available bytes", is
-                .available() == fileString.length());
-
-        // Test that a closed stream throws an IOE for available()
-        BufferedInputStream bis = new BufferedInputStream(
-                new ByteArrayInputStream(new byte[] { 'h', 'e', 'l', 'l', 'o',
-                        ' ', 't', 'i', 'm' }));
-        int available = bis.available();
-        bis.close();
-        assertTrue(available != 0);
-
-        try {
-            bis.available();
-            fail("Expected test to throw IOE.");
-        } catch (IOException ex) {
-            // expected
-        }
-    }
-
-    /**
-     * @tests java.io.BufferedInputStream#close()
-     */
-    public void test_close() throws IOException {
-        new BufferedInputStream(isFile).close();
-
-        // regression for HARMONY-667
-        BufferedInputStream buf = new BufferedInputStream(null, 5);
-        buf.close();
-    }
-
-    /**
-     * @tests java.io.BufferedInputStream#mark(int)
-     */
-    public void test_markI() throws IOException {
-        byte[] buf1 = new byte[100];
-        byte[] buf2 = new byte[100];
-        is.skip(3000);
-        is.mark(1000);
-        is.read(buf1, 0, buf1.length);
-        is.reset();
-        is.read(buf2, 0, buf2.length);
-        is.reset();
-        assertTrue("Failed to mark correct position", new String(buf1, 0,
-                buf1.length).equals(new String(buf2, 0, buf2.length)));
-
-        byte[] bytes = new byte[256];
-        for (int i = 0; i < 256; i++) {
-            bytes[i] = (byte) i;
-        }
-        InputStream in = new BufferedInputStream(
-                new ByteArrayInputStream(bytes), 12);
-        in.skip(6);
-        in.mark(14);
-        in.read(new byte[14], 0, 14);
-        in.reset();
-        assertTrue("Wrong bytes", in.read() == 6 && in.read() == 7);
-
-        in = new BufferedInputStream(new ByteArrayInputStream(bytes), 12);
-        in.skip(6);
-        in.mark(8);
-        in.skip(7);
-        in.reset();
-        assertTrue("Wrong bytes 2", in.read() == 6 && in.read() == 7);
-
-        BufferedInputStream buf = new BufferedInputStream(
-                new ByteArrayInputStream(new byte[] { 0, 1, 2, 3, 4 }), 2);
-        buf.mark(3);
-        bytes = new byte[3];
-        int result = buf.read(bytes);
-        assertEquals(3, result);
-        assertEquals("Assert 0:", 0, bytes[0]);
-        assertEquals("Assert 1:", 1, bytes[1]);
-        assertEquals("Assert 2:", 2, bytes[2]);
-        assertEquals("Assert 3:", 3, buf.read());
-
-        buf = new BufferedInputStream(new ByteArrayInputStream(new byte[] { 0,
-                1, 2, 3, 4 }), 2);
-        buf.mark(3);
-        bytes = new byte[4];
-        result = buf.read(bytes);
-        assertEquals(4, result);
-        assertEquals("Assert 4:", 0, bytes[0]);
-        assertEquals("Assert 5:", 1, bytes[1]);
-        assertEquals("Assert 6:", 2, bytes[2]);
-        assertEquals("Assert 7:", 3, bytes[3]);
-        assertEquals("Assert 8:", 4, buf.read());
-        assertEquals("Assert 9:", -1, buf.read());
-
-        buf = new BufferedInputStream(new ByteArrayInputStream(new byte[] { 0,
-                1, 2, 3, 4 }), 2);
-        buf.mark(Integer.MAX_VALUE);
-        buf.read();
-        buf.close();
-    }
-
-    /**
-     * @tests java.io.BufferedInputStream#markSupported()
-     */
-    public void test_markSupported() {
-        assertTrue("markSupported returned incorrect value", is.markSupported());
-    }
-
-    /**
-     * @tests java.io.BufferedInputStream#read()
-     */
-    public void test_read() throws IOException {
-        int c = is.read();
-        assertTrue("read returned incorrect char", c == fileString.charAt(0));
-
-        byte[] bytes = new byte[256];
-        for (int i = 0; i < 256; i++) {
-            bytes[i] = (byte) i;
-        }
-        InputStream in = new BufferedInputStream(
-                new ByteArrayInputStream(bytes), 12);
-        assertEquals("Wrong initial byte", 0, in.read()); // Fill the
-        // buffer
-        byte[] buf = new byte[14];
-        in.read(buf, 0, 14); // Read greater than the buffer
-        assertTrue("Wrong block read data", new String(buf, 0, 14)
-                .equals(new String(bytes, 1, 14)));
-        assertEquals("Wrong bytes", 15, in.read()); // Check next byte
-    }
-
-    /**
-     * @tests java.io.BufferedInputStream#read(byte[], int, int)
-     */
-    public void test_read$BII_Exception() throws IOException {
-        BufferedInputStream bis = new BufferedInputStream(null);
-        try {
-            bis.read(null, -1, -1);
-            fail("should throw NullPointerException");
-        } catch (NullPointerException e) {
-            // expected
-        }
-
-        try {
-            bis.read(new byte[0], -1, -1);
-            fail("should throw IndexOutOfBoundsException");
-        } catch (IndexOutOfBoundsException e) {
-            // expected
-        }
-
-        try {
-            bis.read(new byte[0], 1, -1);
-            fail("should throw IndexOutOfBoundsException");
-        } catch (IndexOutOfBoundsException e) {
-            // expected
-        }
-
-        try {
-            bis.read(new byte[0], 1, 1);
-            fail("should throw IndexOutOfBoundsException");
-        } catch (IndexOutOfBoundsException e) {
-            // expected
-        }
-
-        bis.close();
-
-        try {
-            bis.read(null, -1, -1);
-            fail("should throw IOException");
-        } catch (IOException e) {
-            // expected
-        }
-    }
-
-    /**
-     * @tests java.io.BufferedInputStream#read(byte[], int, int)
-     */
-    public void test_read$BII() throws IOException {
-        byte[] buf1 = new byte[100];
-        is.skip(3000);
-        is.mark(1000);
-        is.read(buf1, 0, buf1.length);
-        assertTrue("Failed to read correct data", new String(buf1, 0,
-                buf1.length).equals(fileString.substring(3000, 3100)));
-
-        BufferedInputStream bufin = new BufferedInputStream(new InputStream() {
-            int size = 2, pos = 0;
-
-            byte[] contents = new byte[size];
-
-            @Override
-            public int read() throws IOException {
-                if (pos >= size) {
-                    throw new IOException("Read past end of data");
-                }
-                return contents[pos++];
-            }
-
-            @Override
-            public int read(byte[] buf, int off, int len) throws IOException {
-                if (pos >= size) {
-                    throw new IOException("Read past end of data");
-                }
-                int toRead = len;
-                if (toRead > available()) {
-                    toRead = available();
-                }
-                System.arraycopy(contents, pos, buf, off, toRead);
-                pos += toRead;
-                return toRead;
-            }
-
-            @Override
-            public int available() {
-                return size - pos;
-            }
-        });
-        bufin.read();
-        int result = bufin.read(new byte[2], 0, 2);
-        assertTrue("Incorrect result: " + result, result == 1);
-    }
-
-    /**
-     * @tests java.io.BufferedInputStream#reset()
-     */
-    public void test_reset() throws IOException {
-        byte[] buf1 = new byte[10];
-        byte[] buf2 = new byte[10];
-        is.mark(2000);
-        is.read(buf1, 0, 10);
-        is.reset();
-        is.read(buf2, 0, 10);
-        is.reset();
-        assertTrue("Reset failed", new String(buf1, 0, buf1.length)
-                .equals(new String(buf2, 0, buf2.length)));
-
-        BufferedInputStream bIn = new BufferedInputStream(
-                new ByteArrayInputStream("1234567890".getBytes()));
-        bIn.mark(10);
-        for (int i = 0; i < 11; i++) {
-            bIn.read();
-        }
-        bIn.reset();
-    }
-
-    /**
-     * @tests java.io.BufferedInputStream#reset()
-     */
-    public void test_reset_Exception() throws IOException {
-        BufferedInputStream bis = new BufferedInputStream(null);
-
-        // throws IOException with message "Mark has been invalidated"
-        try {
-            bis.reset();
-            fail("should throw IOException");
-        } catch (IOException e) {
-            // expected
-        }
-
-        // does not throw IOException
-        bis.mark(1);
-        bis.reset();
-
-        bis.close();
-
-        // throws IOException with message "stream is closed"
-        try {
-            bis.reset();
-            fail("should throw IOException");
-        } catch (IOException e) {
-            // expected
-        }
-    }
-
-    /**
-     * @tests java.io.BufferedInputStream#skip(long)
-     */
-    public void test_skipJ() throws IOException {
-        byte[] buf1 = new byte[10];
-        is.mark(2000);
-        is.skip(1000);
-        is.read(buf1, 0, buf1.length);
-        is.reset();
-        assertTrue("Failed to skip to correct position", new String(buf1, 0,
-                buf1.length).equals(fileString.substring(1000, 1010)));
-
-        // regression for HARMONY-667
-        try {
-            BufferedInputStream buf = new BufferedInputStream(null, 5);
-            buf.skip(10);
-            fail("Should throw IOException");
-        } catch (IOException e) {
-            // Expected
-        }
-    }
-
-    /**
-     * Sets up the fixture, for example, open a network connection. This method
-     * is called before a test is executed.
-     */
-    @Override
-    protected void setUp() throws IOException {
-        fileName = System.getProperty("user.dir");
-        String separator = System.getProperty("file.separator");
-        if (fileName.charAt(fileName.length() - 1) == separator.charAt(0)) {
-            fileName = Support_PlatformFile.getNewPlatformFile(fileName,
-                    "input.tst");
-        } else {
-            fileName = Support_PlatformFile.getNewPlatformFile(fileName
-                    + separator, "input.tst");
-        }
-        OutputStream fos = new FileOutputStream(fileName);
-        fos.write(fileString.getBytes());
-        fos.close();
-        isFile = new FileInputStream(fileName);
-        is = new BufferedInputStream(isFile);
-    }
-
-    /**
-     * Tears down the fixture, for example, close a network connection. This
-     * method is called after a test is executed.
-     */
-    @Override
-    protected void tearDown() {
-        try {
-            is.close();
-        } catch (Exception e) {
-        }
-        try {
-            File f = new File(fileName);
-            f.delete();
-        } catch (Exception e) {
-        }
-    }
-}
+/*
+ *  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.
+ */
+
+package org.apache.harmony.luni.tests.java.io;
+
+import java.io.BufferedInputStream;
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import junit.framework.TestCase;
+import tests.support.Support_PlatformFile;
+
+public class BufferedInputStreamTest extends TestCase {
+
+    public String fileName;
+
+    private BufferedInputStream is;
+
+    private FileInputStream isFile;
+
+    byte[] ibuf = new byte[4096];
+
+    public String fileString = "Test_All_Tests\nTest_BufferedInputStream\nTest_java_io_BufferedOutputStream\nTest_java_io_ByteArrayInputStream\nTest_java_io_ByteArrayOutputStream\nTest_java_io_DataInputStream\nTest_java_io_File\nTest_java_io_FileDescriptor\nTest_java_io_FileInputStream\nTest_java_io_FileNotFoundException\nTest_java_io_FileOutputStream\nTest_java_io_FilterInputStream\nTest_java_io_FilterOutputStream\nTest_java_io_InputStream\nTest_java_io_IOException\nTest_java_io_OutputStream\nTest_java_io_PrintStream\nTest_java_io_RandomAccessFile\nTest_java_io_SyncFailedException\nTest_java_lang_AbstractMethodError\nTest_java_lang_ArithmeticException\nTest_java_lang_ArrayIndexOutOfBoundsException\nTest_java_lang_ArrayStoreException\nTest_java_lang_Boolean\nTest_java_lang_Byte\nTest_java_lang_Character\nTest_java_lang_Class\nTest_java_lang_ClassCastException\nTest_java_lang_ClassCircularityError\nTest_java_lang_ClassFormatError\nTest_java_lang_ClassLoader\nTest_java_lang_Cl
 assNotFoundException\nTest_java_lang_CloneNotSupportedException\nTest_java_lang_Double\nTest_java_lang_Error\nTest_java_lang_Exception\nTest_java_lang_ExceptionInInitializerError\nTest_java_lang_Float\nTest_java_lang_IllegalAccessError\nTest_java_lang_IllegalAccessException\nTest_java_lang_IllegalArgumentException\nTest_java_lang_IllegalMonitorStateException\nTest_java_lang_IllegalThreadStateException\nTest_java_lang_IncompatibleClassChangeError\nTest_java_lang_IndexOutOfBoundsException\nTest_java_lang_InstantiationError\nTest_java_lang_InstantiationException\nTest_java_lang_Integer\nTest_java_lang_InternalError\nTest_java_lang_InterruptedException\nTest_java_lang_LinkageError\nTest_java_lang_Long\nTest_java_lang_Math\nTest_java_lang_NegativeArraySizeException\nTest_java_lang_NoClassDefFoundError\nTest_java_lang_NoSuchFieldError\nTest_java_lang_NoSuchMethodError\nTest_java_lang_NullPointerException\nTest_java_lang_Number\nTest_java_lang_NumberFormatException\nTest_java_lang_
 Object\nTest_java_lang_OutOfMemoryError\nTest_java_lang_RuntimeException\nTest_java_lang_SecurityManager\nTest_java_lang_Short\nTest_java_lang_StackOverflowError\nTest_java_lang_String\nTest_java_lang_StringBuffer\nTest_java_lang_StringIndexOutOfBoundsException\nTest_java_lang_System\nTest_java_lang_Thread\nTest_java_lang_ThreadDeath\nTest_java_lang_ThreadGroup\nTest_java_lang_Throwable\nTest_java_lang_UnknownError\nTest_java_lang_UnsatisfiedLinkError\nTest_java_lang_VerifyError\nTest_java_lang_VirtualMachineError\nTest_java_lang_vm_Image\nTest_java_lang_vm_MemorySegment\nTest_java_lang_vm_ROMStoreException\nTest_java_lang_vm_VM\nTest_java_lang_Void\nTest_java_net_BindException\nTest_java_net_ConnectException\nTest_java_net_DatagramPacket\nTest_java_net_DatagramSocket\nTest_java_net_DatagramSocketImpl\nTest_java_net_InetAddress\nTest_java_net_NoRouteToHostException\nTest_java_net_PlainDatagramSocketImpl\nTest_java_net_PlainSocketImpl\nTest_java_net_Socket\nTest_java_net_Sock
 etException\nTest_java_net_SocketImpl\nTest_java_net_SocketInputStream\nTest_java_net_SocketOutputStream\nTest_java_net_UnknownHostException\nTest_java_util_ArrayEnumerator\nTest_java_util_Date\nTest_java_util_EventObject\nTest_java_util_HashEnumerator\nTest_java_util_Hashtable\nTest_java_util_Properties\nTest_java_util_ResourceBundle\nTest_java_util_tm\nTest_java_util_Vector\n";
+
+    /*
+     * @tests java.io.BufferedInputStream(InputStream)
+     */
+    public void test_ConstructorLjava_io_InputStream() {
+        try {
+            BufferedInputStream str = new BufferedInputStream(null);
+            str.read();
+            fail("Expected an IOException");
+        } catch (IOException e) {
+            // Expected
+        }
+    }
+
+    /*
+     * @tests java.io.BufferedInputStream(InputStream)
+     */
+    public void test_ConstructorLjava_io_InputStreamI() throws IOException {
+        try {
+            BufferedInputStream str = new BufferedInputStream(null, 1);
+            str.read();
+            fail("Expected an IOException");
+        } catch (IOException e) {
+            // Expected
+        }
+
+        // Test for method java.io.BufferedInputStream(java.io.InputStream, int)
+
+        // Create buffer with exact size of file
+        is = new BufferedInputStream(isFile, this.fileString.length());
+        // Ensure buffer gets filled by evaluating one read
+        is.read();
+        // Close underlying FileInputStream, all but 1 buffered bytes should
+        // still be available.
+        isFile.close();
+        // Read the remaining buffered characters, no IOException should
+        // occur.
+        is.skip(this.fileString.length() - 2);
+        is.read();
+        try {
+            // is.read should now throw an exception because it will have to
+            // be filled.
+            is.read();
+            fail("Exception should have been triggered by read()");
+        } catch (IOException e) {
+            // Expected
+        }
+
+        // regression test for harmony-2407
+        new MockBufferedInputStream(null);
+        assertNotNull(MockBufferedInputStream.buf);
+        MockBufferedInputStream.buf = null;
+        new MockBufferedInputStream(null, 100);
+        assertNotNull(MockBufferedInputStream.buf);
+    }
+
+    static class MockBufferedInputStream extends BufferedInputStream {
+        static byte[] buf;
+
+        MockBufferedInputStream(InputStream is) throws IOException {
+            super(is);
+            buf = super.buf;
+        }
+
+        MockBufferedInputStream(InputStream is, int size) throws IOException {
+            super(is, size);
+            buf = super.buf;
+        }
+    }
+
+    /**
+     * @tests java.io.BufferedInputStream#available()
+     */
+    public void test_available() throws IOException {
+        assertTrue("Returned incorrect number of available bytes", is
+                .available() == fileString.length());
+
+        // Test that a closed stream throws an IOE for available()
+        BufferedInputStream bis = new BufferedInputStream(
+                new ByteArrayInputStream(new byte[] { 'h', 'e', 'l', 'l', 'o',
+                        ' ', 't', 'i', 'm' }));
+        int available = bis.available();
+        bis.close();
+        assertTrue(available != 0);
+
+        try {
+            bis.available();
+            fail("Expected test to throw IOE.");
+        } catch (IOException ex) {
+            // expected
+        }
+    }
+
+    /**
+     * @tests java.io.BufferedInputStream#close()
+     */
+    public void test_close() throws IOException {
+        new BufferedInputStream(isFile).close();
+
+        // regression for HARMONY-667
+        BufferedInputStream buf = new BufferedInputStream(null, 5);
+        buf.close();
+
+        InputStream in = new InputStream() {
+            Object lock = new Object();
+
+            @Override
+            public int read() {
+                return 1;
+            }
+
+            @Override
+            public int read(byte[] buf, int offset, int length) {
+                synchronized (lock) {
+                    try {
+                        lock.wait(3000);
+                    } catch (InterruptedException e) {
+                        // Ignore
+                    }
+                }
+                return 1;
+            }
+
+            @Override
+            public void close() {
+                synchronized (lock) {
+                    lock.notifyAll();
+                }
+            }
+        };
+        final BufferedInputStream bufin = new BufferedInputStream(in);
+        Thread thread = new Thread(new Runnable() {
+            public void run() {
+                try {
+                    Thread.sleep(1000);
+                    bufin.close();
+                } catch (Exception e) {
+                    // Ignored
+                }
+            }
+        });
+        thread.start();
+        try {
+            bufin.read(new byte[100], 0, 99);
+            fail("Should throw IOException");
+        } catch (IOException e) {
+            // Expected
+        }
+    }
+
+    /**
+     * @tests java.io.BufferedInputStream#mark(int)
+     */
+    public void test_markI() throws IOException {
+        byte[] buf1 = new byte[100];
+        byte[] buf2 = new byte[100];
+        is.skip(3000);
+        is.mark(1000);
+        is.read(buf1, 0, buf1.length);
+        is.reset();
+        is.read(buf2, 0, buf2.length);
+        is.reset();
+        assertTrue("Failed to mark correct position", new String(buf1, 0,
+                buf1.length).equals(new String(buf2, 0, buf2.length)));
+
+        byte[] bytes = new byte[256];
+        for (int i = 0; i < 256; i++) {
+            bytes[i] = (byte) i;
+        }
+        InputStream in = new BufferedInputStream(
+                new ByteArrayInputStream(bytes), 12);
+        in.skip(6);
+        in.mark(14);
+        in.read(new byte[14], 0, 14);
+        in.reset();
+        assertTrue("Wrong bytes", in.read() == 6 && in.read() == 7);
+
+        in = new BufferedInputStream(new ByteArrayInputStream(bytes), 12);
+        in.skip(6);
+        in.mark(8);
+        in.skip(7);
+        in.reset();
+        assertTrue("Wrong bytes 2", in.read() == 6 && in.read() == 7);
+
+        BufferedInputStream buf = new BufferedInputStream(
+                new ByteArrayInputStream(new byte[] { 0, 1, 2, 3, 4 }), 2);
+        buf.mark(3);
+        bytes = new byte[3];
+        int result = buf.read(bytes);
+        assertEquals(3, result);
+        assertEquals("Assert 0:", 0, bytes[0]);
+        assertEquals("Assert 1:", 1, bytes[1]);
+        assertEquals("Assert 2:", 2, bytes[2]);
+        assertEquals("Assert 3:", 3, buf.read());
+
+        buf = new BufferedInputStream(new ByteArrayInputStream(new byte[] { 0,
+                1, 2, 3, 4 }), 2);
+        buf.mark(3);
+        bytes = new byte[4];
+        result = buf.read(bytes);
+        assertEquals(4, result);
+        assertEquals("Assert 4:", 0, bytes[0]);
+        assertEquals("Assert 5:", 1, bytes[1]);
+        assertEquals("Assert 6:", 2, bytes[2]);
+        assertEquals("Assert 7:", 3, bytes[3]);
+        assertEquals("Assert 8:", 4, buf.read());
+        assertEquals("Assert 9:", -1, buf.read());
+
+        buf = new BufferedInputStream(new ByteArrayInputStream(new byte[] { 0,
+                1, 2, 3, 4 }), 2);
+        buf.mark(Integer.MAX_VALUE);
+        buf.read();
+        buf.close();
+    }
+
+    /**
+     * @tests java.io.BufferedInputStream#markSupported()
+     */
+    public void test_markSupported() {
+        assertTrue("markSupported returned incorrect value", is.markSupported());
+    }
+
+    /**
+     * @tests java.io.BufferedInputStream#read()
+     */
+    public void test_read() throws IOException {
+        int c = is.read();
+        assertTrue("read returned incorrect char", c == fileString.charAt(0));
+
+        byte[] bytes = new byte[256];
+        for (int i = 0; i < 256; i++) {
+            bytes[i] = (byte) i;
+        }
+        InputStream in = new BufferedInputStream(
+                new ByteArrayInputStream(bytes), 12);
+        assertEquals("Wrong initial byte", 0, in.read()); // Fill the
+        // buffer
+        byte[] buf = new byte[14];
+        in.read(buf, 0, 14); // Read greater than the buffer
+        assertTrue("Wrong block read data", new String(buf, 0, 14)
+                .equals(new String(bytes, 1, 14)));
+        assertEquals("Wrong bytes", 15, in.read()); // Check next byte
+    }
+
+    /**
+     * @tests java.io.BufferedInputStream#read(byte[], int, int)
+     */
+    public void test_read$BII_Exception() throws IOException {
+        BufferedInputStream bis = new BufferedInputStream(null);
+        try {
+            bis.read(null, -1, -1);
+            fail("should throw NullPointerException");
+        } catch (NullPointerException e) {
+            // expected
+        }
+
+        try {
+            bis.read(new byte[0], -1, -1);
+            fail("should throw IndexOutOfBoundsException");
+        } catch (IndexOutOfBoundsException e) {
+            // expected
+        }
+
+        try {
+            bis.read(new byte[0], 1, -1);
+            fail("should throw IndexOutOfBoundsException");
+        } catch (IndexOutOfBoundsException e) {
+            // expected
+        }
+
+        try {
+            bis.read(new byte[0], 1, 1);
+            fail("should throw IndexOutOfBoundsException");
+        } catch (IndexOutOfBoundsException e) {
+            // expected
+        }
+
+        bis.close();
+
+        try {
+            bis.read(null, -1, -1);
+            fail("should throw IOException");
+        } catch (IOException e) {
+            // expected
+        }
+    }
+
+    /**
+     * @tests java.io.BufferedInputStream#read(byte[], int, int)
+     */
+    public void test_read$BII() throws IOException {
+        byte[] buf1 = new byte[100];
+        is.skip(3000);
+        is.mark(1000);
+        is.read(buf1, 0, buf1.length);
+        assertTrue("Failed to read correct data", new String(buf1, 0,
+                buf1.length).equals(fileString.substring(3000, 3100)));
+
+        BufferedInputStream bufin = new BufferedInputStream(new InputStream() {
+            int size = 2, pos = 0;
+
+            byte[] contents = new byte[size];
+
+            @Override
+            public int read() throws IOException {
+                if (pos >= size) {
+                    throw new IOException("Read past end of data");
+                }
+                return contents[pos++];
+            }
+
+            @Override
+            public int read(byte[] buf, int off, int len) throws IOException {
+                if (pos >= size) {
+                    throw new IOException("Read past end of data");
+                }
+                int toRead = len;
+                if (toRead > available()) {
+                    toRead = available();
+                }
+                System.arraycopy(contents, pos, buf, off, toRead);
+                pos += toRead;
+                return toRead;
+            }
+
+            @Override
+            public int available() {
+                return size - pos;
+            }
+        });
+        bufin.read();
+        int result = bufin.read(new byte[2], 0, 2);
+        assertTrue("Incorrect result: " + result, result == 1);
+    }
+
+    /**
+     * @tests java.io.BufferedInputStream#reset()
+     */
+    public void test_reset() throws IOException {
+        byte[] buf1 = new byte[10];
+        byte[] buf2 = new byte[10];
+        is.mark(2000);
+        is.read(buf1, 0, 10);
+        is.reset();
+        is.read(buf2, 0, 10);
+        is.reset();
+        assertTrue("Reset failed", new String(buf1, 0, buf1.length)
+                .equals(new String(buf2, 0, buf2.length)));
+
+        BufferedInputStream bIn = new BufferedInputStream(
+                new ByteArrayInputStream("1234567890".getBytes()));
+        bIn.mark(10);
+        for (int i = 0; i < 11; i++) {
+            bIn.read();
+        }
+        bIn.reset();
+    }
+
+    /**
+     * @tests java.io.BufferedInputStream#reset()
+     */
+    public void test_reset_Exception() throws IOException {
+        BufferedInputStream bis = new BufferedInputStream(null);
+
+        // throws IOException with message "Mark has been invalidated"
+        try {
+            bis.reset();
+            fail("should throw IOException");
+        } catch (IOException e) {
+            // expected
+        }
+
+        // does not throw IOException
+        bis.mark(1);
+        bis.reset();
+
+        bis.close();
+
+        // throws IOException with message "stream is closed"
+        try {
+            bis.reset();
+            fail("should throw IOException");
+        } catch (IOException e) {
+            // expected
+        }
+    }
+
+    /**
+     * @tests java.io.BufferedInputStream#skip(long)
+     */
+    public void test_skipJ() throws IOException {
+        byte[] buf1 = new byte[10];
+        is.mark(2000);
+        is.skip(1000);
+        is.read(buf1, 0, buf1.length);
+        is.reset();
+        assertTrue("Failed to skip to correct position", new String(buf1, 0,
+                buf1.length).equals(fileString.substring(1000, 1010)));
+
+        // regression for HARMONY-667
+        try {
+            BufferedInputStream buf = new BufferedInputStream(null, 5);
+            buf.skip(10);
+            fail("Should throw IOException");
+        } catch (IOException e) {
+            // Expected
+        }
+    }
+
+    /**
+     * Sets up the fixture, for example, open a network connection. This method
+     * is called before a test is executed.
+     */
+    @Override
+    protected void setUp() throws IOException {
+        fileName = System.getProperty("user.dir");
+        String separator = System.getProperty("file.separator");
+        if (fileName.charAt(fileName.length() - 1) == separator.charAt(0)) {
+            fileName = Support_PlatformFile.getNewPlatformFile(fileName,
+                    "input.tst");
+        } else {
+            fileName = Support_PlatformFile.getNewPlatformFile(fileName
+                    + separator, "input.tst");
+        }
+        OutputStream fos = new FileOutputStream(fileName);
+        fos.write(fileString.getBytes());
+        fos.close();
+        isFile = new FileInputStream(fileName);
+        is = new BufferedInputStream(isFile);
+    }
+
+    /**
+     * Tears down the fixture, for example, close a network connection. This
+     * method is called after a test is executed.
+     */
+    @Override
+    protected void tearDown() {
+        try {
+            is.close();
+        } catch (Exception e) {
+        }
+        try {
+            File f = new File(fileName);
+            f.delete();
+        } catch (Exception e) {
+        }
+    }
+}



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