Mailing-List: contact users-help@tomcat.apache.org; run by ezmlm
Precedence: bulk
Reply-To: "Tomcat Users List" <users@tomcat.apache.org>
To: users@tomcat.apache.org
From: Aritz Maeztu <amaeztu@tesicnor.com>
Subject: EL Stream API differing from Java's one
Message-ID: <abacdf8e-c4ac-106c-7d2b-493a2e7b3312@tesicnor.com>
Date: Wed, 24 Aug 2016 08:44:33 +0200
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101
 Thunderbird/45.2.0
MIME-Version: 1.0
Content-Type: multipart/alternative;
 boundary="------------77B228D03BDD37F9971A1F00"
archived-at: Wed, 24 Aug 2016 06:45:22 -0000

--------------77B228D03BDD37F9971A1F00
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 8bit

I've already posted the issue in StackOverflow: 
http://stackoverflow.com/questions/39096941/does-tomcats-el-stream-api-make-sense

Using Tomcat 8.0.30, I've implemented some EL accesses to the stream 
API. However, I've found that this expression:

|#{testBean.values.stream().anyMatch(str ->str == 'Test1')} Returns a ||org.apache.el.stream.Optional type. Looking at the API documentation it 
also says that. However, in the standard Java Stream API this kind of 
method returns a boolean, which is the result of evaluating the 
Predicate and see if any object in the stream matches it.|


-- 
Aritz Maeztu Otao
Departamento Desarrollo de Software 
<https://www.linkedin.com/in/aritz-maeztu-ota%C3%B1o-65891942>
<http://www.tesicnor.com> 	

Pol. Ind. Mocholi. C/Rio Elorz, Nave 13E 31110 Noain (Navarra)
Telf. Aritz Maeztu: 948 68 03 06
Telf. Secretara: 948 21 40 40

Antes de imprimir este e-mail piense bien si es necesario hacerlo: El 
medioambiente es cosa de todos.


--------------77B228D03BDD37F9971A1F00
Content-Type: multipart/related;
 boundary="------------3CA8659CCF2EB39EA474ACB0"


--------------3CA8659CCF2EB39EA474ACB0
Content-Type: text/html; charset=windows-1252
Content-Transfer-Encoding: 8bit

<html>
  <head>

    <meta http-equiv="content-type" content="text/html; charset=windows-1252">
  </head>
  <body bgcolor="#FFFFFF" text="#000000">
    <p>I've already posted the issue in StackOverflow: <a
        moz-do-not-send="true" class="moz-txt-link-freetext"
href="http://stackoverflow.com/questions/39096941/does-tomcats-el-stream-api-make-sense">http://stackoverflow.com/questions/39096941/does-tomcats-el-stream-api-make-sense</a><br>
      <br>
      Using Tomcat 8.0.30, I've implemented some EL accesses to the
      stream API. However, I've found that this expression:<br>
      <br>
    </p>
    <pre style="" class="lang-xhtml prettyprint prettyprinted"><code><span class="atv">#{testBean.values.stream().anyMatch(str -&gt;</span><span class="pln"> str == 'Test1')}

Returns a </span></code><code><span class="pln">org</span><span class="pun">.</span><span class="pln">apache</span><span class="pun">.</span><span class="pln">el</span><span class="pun">.</span><span class="pln">stream</span><span class="pun">.</span><span class="typ">Optional type. Looking at the API documentation it also says that.

However, in the standard Java Stream API this kind of method returns a boolean, 
which is the result of evaluating the Predicate and see if any object in the stream matches it.</span></code></pre>
    <br>
    <div class="moz-signature">-- <br>
      <meta http-equiv="content-type" content="text/html;
        charset=windows-1252">
      <div class="moz-signature">
        <table style="cellspadding: 0; width: 600; align: left;
          border-collapse: collapse;">
          <tbody>
            <tr>
              <td style="border-bottom-width: 1px; border-bottom-style:
                solid; border-bottom-color: #989898;"> <span
                  style="font-weight:bold">Aritz Maeztu Otao</span><br>
                <span style="font-size: 12px;">Departamento Desarrollo
                  de Software</span> </td>
              <td style="border-bottom-width: 1px; border-bottom-style:
                solid; border-bottom-color: #989898; padding-left:
                20px;"> <a target="_blank"
                  href="https://www.linkedin.com/in/aritz-maeztu-ota%C3%B1o-65891942">
                  <img src="cid:part2.F94EF4EE.3F2753C9@tesicnor.com"
                    border="0"> </a> </td>
            </tr>
            <tr>
              <td> <a target="_blank" href="http://www.tesicnor.com"> <img
                    shrinktofit="true"
                    src="cid:part4.47910128.BC5E520F@tesicnor.com"
                    border="0" width="143"> </a> </td>
              <td style="font-size: 12px;">
                <p style="padding-left: 20px;"> <span>Pol. Ind.
                    Mocholi.</span> <span>C/Rio Elorz, Nave 13E </span><span
                    style="font-weight:bold">31110 Noain (Navarra)</span><br>
                  <span>Telf. Aritz Maeztu: 948 68 03 06</span> <br>
                  <span>Telf. Secretara: 948 21 40 40</span> <br>
                </p>
              </td>
            </tr>
            <tr>
              <td colspan="2"> <span style="color: #009900;font-size:
                  12px;">Antes de imprimir este e-mail piense bien si es
                  necesario hacerlo: El medioambiente es cosa de todos.</span>
              </td>
            </tr>
          </tbody>
        </table>
      </div>
    </div>
  </body>
</html>

--------------3CA8659CCF2EB39EA474ACB0
Content-Type: image/gif;
 name="linkdin.gif"
Content-Transfer-Encoding: base64
Content-ID: <part2.F94EF4EE.3F2753C9@tesicnor.com>
Content-Disposition: inline;
 filename="linkdin.gif"
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=
--------------3CA8659CCF2EB39EA474ACB0
Content-Type: image/png;
 name="logo.png"
Content-Transfer-Encoding: base64
Content-ID: <part4.47910128.BC5E520F@tesicnor.com>
Content-Disposition: inline;
 filename="logo.png"

iVBORw0KGgoAAAANSUhEUgAAAVgAAABDCAYAAADZCh2sAAAAGXRFWHRTb2Z0d2FyZQBBZG9i
ZSBJbWFnZVJlYWR5ccllPAAAC0lJREFUeNrsXTtyG0cQHbmUG3bu8jpRKugEBGMGgk5A4AQk
SpEjEJEjFsgTADwBoUAxlyfQOmXiVTl3QSegt8ne0hJaLKbnt7/3qlBUUcRsT0/Pm57enp5X
j4+PCgAAAHCP17u/ePPx8yT7ceqg7ZuHy5N1iE5kMg+zH0sHTSWZzDMLGQYdsg3SxRZTBAAc
EmyGKPuMHLR9H7AfA0cy22DZABlc4jj7xJgiAGCOn6ACAAAAECwAAECr8BoqAPqENx8/677V
XTxcnlxAYwA8WAAAABAsAAAACBYAAACwhEkMdp19bjT+Lg3Yj0Q9pxUdgqt8WQAAAC8E+/Xh
8iRuUic4If6gTG8+fsaIAwDQaIIFykFevcvDFUdKdnCBdhZfHT4/xZACAAi2KV702mV7mbd9
ISTYm6btLAAABGuJ//78baSae0Q0/vWvf0E6AAC01oMlcp03uI8gWAAAECIAgAYtuClUBYBg
AUCAh8uTY2gBCAUcNAAAAADBAgAAtAtlIYK1qo5TpS3u76ETX6jgDwCAP4J9uDxJVUcD/Lon
vgAAABAiAAAAAMECAAD0D0jTAkpRcUtu0NtmMzlG+/6vbUeDK3SacmgutDyjusdXc6xr0Y+G
vDSWwyq7BMECxck/VhpFZrK/zWPZn7LPxuWEzNomGd6zDNGBv83/SbLQBPyb/p3JkxiQnFOi
4ck34r4MyyZiSV8S7ss992MrlL2SiPj7pzzO0YHx3dD4Zu1tPJLTuKAfnbGOWUf3NnLZ6JEX
gVyH+9p4BYIFioR2pmT1JPLJQZ9V1sZaPd9hlVrIccGGGxl8fbSHIMoK4Oher250bTlPXtLn
xKAfORGfc1u794Idkv0q+8xKZCJZ5gLdDlj+SfZdGtOZK6ItENTEcJzpc85yUQW7K4OF8JAe
qa8fSuSeC+cJCLbnHutSuSnUQ5NlzIRwZSDH6pCHJ0ROEJEKlDWS9SNifY4dNntkQNC7Mq0s
x5jauOVFdGbq1XvQT8SEd2Zidxpt7y7+RvVW8JKrn+RK5HOn3FZBI1JbZm2vhN7znWNyrUOf
5HF+cUyuJhju6PaLwzHObcZ0l+RLP7nd3XHYwbUeV8qimBUItn/kumSvZuDpERMdki14roOW
63PFnlkT+jEgkuEF9NaDTEPJAlpYfG4D6IcWkn/Yrpzs8Nhzndi0A4LtF7mSwZwHeNSEiXyf
HINAky4EuU4aJtaEFy6fYzsW2FvIO/DInu4ckeypclCGFQTbH3Idq7B1e88r0m6I5COQqxcs
m/CMwou14F68eo4Z2y7eThwREGw/yDUy8GpS9VyXYsGftZIfod73zDODbtCzY/U9JatOfZ43
lFxDIaryYgsvtGqTz7MXrw1kEfQDkhghkddi3x1jTC5zzfZoIk6KbfHE1JWFyPR6X4oQT2T6
0JbwrdLIN3W0WJl4ZqRXSiuKyw5IcLske56H7KMfNA6UY5vmMvAuI08tk+wqKH91U7GwDgxk
+6R28n95uz8ykI+yWsa+8ngLIFkTEGx/vVcyTt23t0/VxqpScSgdJmuTJued5iQ648mTQzf1
aJ09a1r1B4XCRHGhv8UEfx+QkgfpcnboUsxCXzYFwh05kpl2IKX5oky09LkShj1Ge+xtLJSb
bG6673AI/z5h+S6Ei9uyYhGwIdRN2WIAgu0ndLfj6SFyLRp9ZuxEfrca7dLb2GFhAg11Scmk
syz/xsPEyhcrKXkcm+SOMuGuLUWuJK+SZ07ZY9QZo33e5NyXfujQBR8w0N3+/7CDskDlzm4f
EIPttvcaCbzXqYQIeOsV627XpMRQ13l4R4uVFbk6Qv78RPi9hXDBUTvbed3QxtZEP0xwC8FX
Th2FVt6ZEDUIttvQDg0YFk650fy7o0NbS03vqC2LFZHGhwaQq4nnbOP5SxYg41NhfHw41Q1l
8NiZghyPqamsINhuQ3f1vjZsX3cyjna2Wjpbu3HDdCmR57rm6k8zS3KPDb+nGz5JHWzbF57G
7oXnaisnCLa74YGBYLtmNKF4Em815RkKCJaw4oyFpkD35Rzp46qH9hYJdh7Xts9j4ts6HjvT
Hdpe4CVXdyFJ84kstlGp5rMGQoLNz5ifsaFvDOKJLqHrnW0aGj9uin4kOx+ddiaO54JTgGBh
8IS7APIM1fdapxPB94j46c30vFCHNq+XGoRwefHRTc361FN7012gtw7DJ7q2FNWlFIQIgFAY
FLyOrUUbFE+j/MYvGfFRcY9VgHitZIImPR3ftzXoR5uoq27GAMECJjhqolC8fV44ai5iD+aW
yfbCYcm6ssVBp39pT+1NV0cuCbbxixkIFqiDZOkl0NqDlzlnz9a1tyLJ7QSq8c3xYg2CBYCS
yTH1QLI50d5xNafQSDCyAAgWaBLJ0t1HPrbVq7ribgCQ44csAo18trStcSaN3NBtzalAfSTZ
p7oB7HHSwQiXpEgk+y7gVhKEDlQTrHp+aVBVsIFeUFy0tL9ErlUpSbF6vk20T6A+3wd6ThXR
UrhgXagilV/dbfPSKmJ7tk38R2zVHZy9fHV1PUxoggW6Ad1dxv3O1dB1e7Qk95o/xXqg7w09
xFMHBJsIJv3IsK5D23GvwteZiAR2VcuYIAbbXXwN7VF4IlwqREO1TGln8Yt6LmOYCppw4eVI
PNi+hgl0dRQ5TKU78jB+IFjAqdc18pQ76oNst5zi9U4JjlvavuwSxuXfw94OwtXBkLEH2UCw
QGMNPiTR+so+2AfdLeawj9kLvAXX9RSta7SyjnVDBPd16eV1QMOrA7HqKSiWydXfdYyQzvm3
sUgJebGhKm7pxhgJS/ay+4ZYc7EeOYhVz4V20k6C/fWvf+M+E1lHCChiUphCZZW61J3U5MUu
MwKZ9UxHnwS7IaqUZlQUXHjvV1pn6iVCBN2GpJ7lhC+VawU4bqw7ma1DCTxJJY7EecPq2YbY
Na0FYYKhMrjam7NKJFdyX9epExBstw1eSgoUKri1vGLjxWQgT27nd+e27TO5LpVe+MNleTzp
ZF2yPgeG/YxaGM+V6Ggi0Q/rQvc2Y8Vkv65TGSYhgt81Bz3YiS9B9f6h6h8WSpY69LT9opis
er76RJQDyjo+Ui8PCRS3yksmnpS33RTbTHRspeC1zpX+C47YlSLp1BlfWW6iT5roN4f0Wbi5
9j3rcqHaFYKjLI8zAQnm+iFiLr1anL1WanMitf263yuYEOxEs6MhT3wdOqHVZy825sktMc5B
Ps5c5DrhbfZubu3PrHvJ9TQ5iCDP+UOTqEiG9LxvDp4hDZPogBaLL8LvDPK+FvRZ9jfDDtjb
VnCle7HveVH1ZCfMMFRmp/kSTumrFTjJ1Q/M2Csy2ZoPVLjk+dHOT1sklrekloZdMhKYKYP4
YQ36rItkNwaLustd5tOtvk3QBWKw/fBic4Pr25n6qSd9+qhn2zWbm6r6Evw/NKUgFQi2PwZP
xn7cI5Kd+kzP8VjPtks4DkyyWx73uCkKAMH2k2S7XpJxanufvYBkZ7Csyp3TcaCF6OlZIcYd
BAtUkmz2oVNGiw52b8vbw3VAfea1EWJYVznJFgqr+9o90Xj/0cRaziDY/hr+BRklG6cvw0/V
j6UCfZBffpHiH65fagkWrWP21mIPOuyCvW3Y3hYO7W3DXuu0qce8y7IIXBlIyBU9deSRNcmY
U6EOtwZGT88g72LKxw/zmquRxZhTm5TbGpe9aKDJwG/h6XlHFs/L9XMv9FhvlF7xj9RAnyRP
zAcpivo06hcRyA5xeJM9hI64L7SwX/ANFiZF1ROWb2PxIiuUHtWrx8dHuHPACxQObkQHyC/N
P7ZvbTnB/uCVPjzBWnVtkUbf8n4lLSy440I/uZ2NquysjYXMQbAAAACe8L8AAwAk0oyvsanG
gAAAAABJRU5ErkJggg==
--------------3CA8659CCF2EB39EA474ACB0--

--------------77B228D03BDD37F9971A1F00--