#fixed code
                                @Test
    public void testReadNull() throws Exception {
        byte[] decoded = StringUtils.getBytesUtf8(STRING_FIXTURE);
        ByteArrayInputStream bin = new ByteArrayInputStream(decoded);
        Base64InputStream in = new Base64InputStream(bin, true, 4, new byte[] { 0, 0, 0 });
        try {
            in.read(null, 0, 0);
            fail("Base64InputStream.read(null, 0, 0) to throw a NullPointerException");
        } catch (NullPointerException e) {
            // Expected
        }
        in.close();
    }
#vulnerable code 
                                @Test
    public void testReadNull() throws Exception {
        byte[] decoded = StringUtils.getBytesUtf8(STRING_FIXTURE);
        ByteArrayInputStream bin = new ByteArrayInputStream(decoded);
        Base64InputStream in = new Base64InputStream(bin, true, 4, new byte[] { 0, 0, 0 });
        try {
            in.read(null, 0, 0);
            fail("Base64InputStream.read(null, 0, 0) to throw a NullPointerException");
        } catch (NullPointerException e) {
            // Expected
        }
    } 
                            #location 7 
                            #vulnerability type RESOURCE_LEAK