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-<!--
- 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.
--->
-<html>
-
-<head>
-<meta http-equiv="Content-Language" content="en-us">
-<link rel="stylesheet" type="text/css" href="../stylesheets/style.css">
-<title>Fail Task</title>
-</head>
-
-<body>
-
-<h2><a name="fail">Fail</a></h2>
-<h3>Description</h3>
-<p>Exits the current build (just throwing a BuildException), optionally printing additional information.</p>
-<p>The message of the Exception can be set via the message attribute
-or character data nested into the element.</p>
-
-<h3>Parameters</h3>
-<table border="1" cellpadding="2" cellspacing="0">
- <tr>
- <td valign="top"><b>Attribute</b></td>
- <td valign="top"><b>Description</b></td>
- <td align="center" valign="top"><b>Required</b></td>
- </tr>
- <tr>
- <td valign="top">message</td>
- <td valign="top">A message giving further information on why the build exited</td>
- <td align="center" valign="top">No</td>
- </tr>
- <tr>
- <td valign="top">if</td>
- <td valign="top">Only fail <a href="../properties.html#if+unless">if a property of the given name exists</a>
- in the current project</td>
- <td align="center" valign="top">No</td>
- </tr>
- <tr>
- <td valign="top">unless</td>
- <td valign="top">Only fail <a href="../properties.html#if+unless">if a property of the given name doesn't
- exist</a> in the current project</td>
- <td align="center" valign="top">No</td>
- </tr>
- <tr>
- <td valign="top">status</td>
- <td valign="top">Exit using the specified status code;
- assuming the generated Exception is not caught, the
- JVM will exit with this status. <em>Since Apache Ant 1.6.2</em></td>
- <td align="center" valign="top">No</td>
- </tr>
-</table>
-
-<h3>Parameters specified as nested elements</h3>
-
-<p>As an alternative to the <i>if</i>/<i>unless</i> attributes,
- conditional failure can be achieved using a single nested
- <code>&lt;condition&gt;</code> element, which should contain exactly one
- core or custom condition. For information about conditions, see
- <a href="conditions.html">here</a>.<br><b>Since Ant 1.6.2</b>
-</p>
-
-<h3>Examples</h3>
-
-<pre> &lt;fail/&gt;</pre>
-<p>will exit the current build with no further information given.</p>
-<pre>
-BUILD FAILED
-
-build.xml:4: No message
-</pre>
-
-<pre> &lt;fail message=&quot;Something wrong here.&quot;/&gt;</pre>
-<p>will exit the current build and print something
- like the following to wherever your output goes:
-</p>
-<pre>
-BUILD FAILED
-
-build.xml:4: Something wrong here.
-</pre>
-
-<pre> &lt;fail&gt;Something wrong here.&lt;/fail&gt;</pre>
-<p>will give the same result as above.</p>
-
-<pre> &lt;fail unless=&quot;thisdoesnotexist&quot;/&gt;</pre>
-<p>will exit the current build and print something
- like the following to wherever your output goes:
-</p>
-<pre>
-BUILD FAILED
-
-build.xml:2: unless=thisdoesnotexist
-</pre>
-
-Using a condition to achieve the same effect:
-
-<pre>
- &lt;fail&gt;
- &lt;condition&gt;
- &lt;not&gt;
- &lt;isset property=&quot;thisdoesnotexist&quot;/&gt;
- &lt;/not&gt;
- &lt;/condition&gt;
- &lt;/fail&gt;
-</pre>
-
-<p>Output:</p>
-<pre>
-BUILD FAILED
-
-build.xml:2: condition satisfied
-</pre>
-
-<pre>
-&lt;fail message=&quot;Files are missing.&quot;&gt;
- &lt;condition&gt;
- &lt;not&gt;
- &lt;resourcecount count=&quot;2&quot;&gt;
- &lt;fileset id=&quot;fs&quot; dir=&quot;.&quot; includes=&quot;one.txt,two.txt&quot;/&gt;
- &lt;/resourcecount&gt;
- &lt;/not&gt;
- &lt;/condition&gt;
-&lt;/fail&gt;
-</pre>
-<p>Will check that both files <i>one.txt</i> and <i>two.txt</i> are present otherwise the build
-will fail.</p>
-
-</body>
-</html>
-