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net.sf.antcontrib.logic</FONT>
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<BR>
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Class TryCatchTask</H2>
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<PRE>
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java.lang.Object
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  <IMG SRC="../../../../resources/inherit.gif" ALT="extended by ">org.apache.tools.ant.ProjectComponent
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      <IMG SRC="../../../../resources/inherit.gif" ALT="extended by ">org.apache.tools.ant.Task
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          <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>net.sf.antcontrib.logic.TryCatchTask</B>
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</PRE>
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<HR>
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<DL>
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<DT><PRE>public class <B>TryCatchTask</B><DT>extends org.apache.tools.ant.Task</DL>
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</PRE>
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<P>
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A wrapper that lets you run a set of tasks and optionally run a
103
 different set of tasks if the first set fails and yet another set
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 after the first one has finished.
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106
 <p>This mirrors Java's try/catch/finally.</p>
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108
 <p>The tasks inside of the required <code>&lt;try&gt;</code>
109
 element will be run.  If one of them should throw a <CODE>BuildException</CODE> several things
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 can happen:</p>
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112
 <ul>
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   <li>If there is no <code>&lt;catch&gt;</code> block, the
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   exception will be passed through to Ant.</li>
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   <li>If the property attribute has been set, a property of the
117
   given name will be set to the message of the exception.</li>
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119
   <li>If the reference attribute has been set, a reference of the
120
   given id will be created and point to the exception object.</li>
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122
   <li>If there is a <code>&lt;catch&gt;</code> block, the tasks
123
   nested into it will be run.</li>
124
 </ul>
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126
 <p>If a <code>&lt;finally&gt;</code> block is present, the task
127
 nested into it will be run, no matter whether the first tasks have
128
 thrown an exception or not.</p>
129
 
130
 <p><strong>Attributes:</strong></p>
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132
 <table>
133
   <tr>
134
     <td>Name</td>
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     <td>Description</td>
136
     <td>Required</td>
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   </tr>
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   <tr>
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     <td>property</td>
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     <td>Name of a property that will receive the message of the
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     exception that has been caught (if any)</td>
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     <td>No</td>
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   </tr>
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   <tr>
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     <td>reference</td>
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     <td>Id of a reference that will point to the exception object
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     that has been caught (if any)</td>
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     <td>No</td>
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   </tr>
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 </table>
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152
 <p>Use the following task to define the <code>&lt;trycatch&gt;</code>
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 task before you use it the first time:</p>
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155
 <pre><code>
156
   &lt;taskdef name="trycatch"
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            classname="net.sf.antcontrib.logic.TryCatchTask" /&gt;
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 </code></pre>
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160
 <h3>Crude Example</h3>
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162
 <pre><code>
163
 &lt;trycatch property=&quot;foo&quot; reference=&quot;bar&quot;&gt;
164
   &lt;try&gt;
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     &lt;fail&gt;Tada!&lt;/fail&gt;
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   &lt;/try&gt;
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   &lt;catch&gt;
169
     &lt;echo&gt;In &amp;lt;catch&amp;gt;.&lt;/echo&gt;
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   &lt;/catch&gt;
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   &lt;finally&gt;
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     &lt;echo&gt;In &amp;lt;finally&amp;gt;.&lt;/echo&gt;
174
   &lt;/finally&gt;
175
 &lt;/trycatch&gt;
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 &lt;echo&gt;As property: ${foo}&lt;/echo&gt;
178
 &lt;property name=&quot;baz&quot; refid=&quot;bar&quot; /&gt;
179
 &lt;echo&gt;From reference: ${baz}&lt;/echo&gt;
180
 </code></pre>
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182
 <p>results in</p>
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184
 <pre><code>
185
   [trycatch] Caught exception: Tada!
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       [echo] In &lt;catch&gt;.
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       [echo] In &lt;finally&gt;.
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       [echo] As property: Tada!
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       [echo] From reference: Tada!
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 </code></pre>
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<P>
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<P>
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<DL>
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<DT><B>Author:</B></DT>
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  <DD><a href="mailto:stefan.bodewig@freenet.de">Stefan Bodewig</a>, <a href="mailto:RITCHED2@Nationwide.com">Dan Ritchey</a></DD>
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</DL>
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<HR>
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<P>
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<!-- ======== NESTED CLASS SUMMARY ======== -->
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<A NAME="nested_class_summary"><!-- --></A>
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<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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<B>Nested Class Summary</B></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static&nbsp;class</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../../net/sf/antcontrib/logic/TryCatchTask.CatchBlock.html" title="class in net.sf.antcontrib.logic">TryCatchTask.CatchBlock</A></B></CODE>
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<BR>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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</TR>
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</TABLE>
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&nbsp;<!-- =========== FIELD SUMMARY =========== -->
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<A NAME="field_summary"><!-- --></A>
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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<B>Field Summary</B></FONT></TH>
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</TR>
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</TABLE>
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&nbsp;<A NAME="fields_inherited_from_class_org.apache.tools.ant.Task"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
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<TH ALIGN="left"><B>Fields inherited from class org.apache.tools.ant.Task</B></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD><CODE>description, location, target, taskName, taskType, wrapper</CODE></TD>
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</TR>
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</TABLE>
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&nbsp;<A NAME="fields_inherited_from_class_org.apache.tools.ant.ProjectComponent"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
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<TH ALIGN="left"><B>Fields inherited from class org.apache.tools.ant.ProjectComponent</B></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD><CODE>project</CODE></TD>
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</TR>
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</TABLE>
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&nbsp;
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<A NAME="constructor_summary"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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<B>Constructor Summary</B></FONT></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD><CODE><B><A HREF="../../../../net/sf/antcontrib/logic/TryCatchTask.html#TryCatchTask()">TryCatchTask</A></B>()</CODE>
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<BR>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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</TR>
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</TABLE>
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&nbsp;
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<!-- ========== METHOD SUMMARY =========== -->
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<A NAME="method_summary"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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<B>Method Summary</B></FONT></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>&nbsp;void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../../net/sf/antcontrib/logic/TryCatchTask.html#addCatch(net.sf.antcontrib.logic.TryCatchTask.CatchBlock)">addCatch</A></B>(<A HREF="../../../../net/sf/antcontrib/logic/TryCatchTask.CatchBlock.html" title="class in net.sf.antcontrib.logic">TryCatchTask.CatchBlock</A>&nbsp;cb)</CODE>
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<BR>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>&nbsp;void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../../net/sf/antcontrib/logic/TryCatchTask.html#addFinally(org.apache.tools.ant.taskdefs.Sequential)">addFinally</A></B>(org.apache.tools.ant.taskdefs.Sequential&nbsp;seq)</CODE>
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283
<BR>
284
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adds a nested &lt;finally&gt; block - at most one is allowed.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>&nbsp;void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../../net/sf/antcontrib/logic/TryCatchTask.html#addTry(org.apache.tools.ant.taskdefs.Sequential)">addTry</A></B>(org.apache.tools.ant.taskdefs.Sequential&nbsp;seq)</CODE>
290
 
291
<BR>
292
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adds a nested &lt;try&gt; block - one is required, more is
293
 forbidden.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>&nbsp;void</CODE></FONT></TD>
298
<TD><CODE><B><A HREF="../../../../net/sf/antcontrib/logic/TryCatchTask.html#execute()">execute</A></B>()</CODE>
299
 
300
<BR>
301
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The heart of the task.</TD>
302
</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>&nbsp;void</CODE></FONT></TD>
306
<TD><CODE><B><A HREF="../../../../net/sf/antcontrib/logic/TryCatchTask.html#setProperty(java.lang.String)">setProperty</A></B>(java.lang.String&nbsp;p)</CODE>
307
 
308
<BR>
309
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the property attribute.</TD>
310
</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>&nbsp;void</CODE></FONT></TD>
314
<TD><CODE><B><A HREF="../../../../net/sf/antcontrib/logic/TryCatchTask.html#setReference(java.lang.String)">setReference</A></B>(java.lang.String&nbsp;r)</CODE>
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316
<BR>
317
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the reference attribute.</TD>
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</TR>
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</TABLE>
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&nbsp;<A NAME="methods_inherited_from_class_org.apache.tools.ant.Task"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
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<TH ALIGN="left"><B>Methods inherited from class org.apache.tools.ant.Task</B></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD><CODE>getDescription, getLocation, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, getTaskType, getWrapper, handleErrorFlush, handleErrorOutput, handleFlush, handleInput, handleOutput, init, isInvalid, log, log, maybeConfigure, perform, reconfigure, setDescription, setLocation, setOwningTarget, setRuntimeConfigurableWrapper, setTaskName, setTaskType</CODE></TD>
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</TR>
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</TABLE>
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&nbsp;<A NAME="methods_inherited_from_class_org.apache.tools.ant.ProjectComponent"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
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<TH ALIGN="left"><B>Methods inherited from class org.apache.tools.ant.ProjectComponent</B></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD><CODE>getProject, setProject</CODE></TD>
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</TR>
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</TABLE>
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&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
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<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
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</TR>
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</TABLE>
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&nbsp;
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<P>
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<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<A NAME="constructor_detail"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
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<B>Constructor Detail</B></FONT></TH>
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</TR>
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</TABLE>
359
 
360
<A NAME="TryCatchTask()"><!-- --></A><H3>
361
TryCatchTask</H3>
362
<PRE>
363
public <B>TryCatchTask</B>()</PRE>
364
<DL>
365
</DL>
366
 
367
<!-- ============ METHOD DETAIL ========== -->
368
 
369
<A NAME="method_detail"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
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<B>Method Detail</B></FONT></TH>
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</TR>
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</TABLE>
376
 
377
<A NAME="addTry(org.apache.tools.ant.taskdefs.Sequential)"><!-- --></A><H3>
378
addTry</H3>
379
<PRE>
380
public void <B>addTry</B>(org.apache.tools.ant.taskdefs.Sequential&nbsp;seq)
381
            throws org.apache.tools.ant.BuildException</PRE>
382
<DL>
383
<DD>Adds a nested &lt;try&gt; block - one is required, more is
384
 forbidden.
385
<P>
386
<DD><DL>
387
 
388
<DT><B>Throws:</B>
389
<DD><CODE>org.apache.tools.ant.BuildException</CODE></DL>
390
</DD>
391
</DL>
392
<HR>
393
 
394
<A NAME="addCatch(net.sf.antcontrib.logic.TryCatchTask.CatchBlock)"><!-- --></A><H3>
395
addCatch</H3>
396
<PRE>
397
public void <B>addCatch</B>(<A HREF="../../../../net/sf/antcontrib/logic/TryCatchTask.CatchBlock.html" title="class in net.sf.antcontrib.logic">TryCatchTask.CatchBlock</A>&nbsp;cb)</PRE>
398
<DL>
399
<DD><DL>
400
</DL>
401
</DD>
402
</DL>
403
<HR>
404
 
405
<A NAME="addFinally(org.apache.tools.ant.taskdefs.Sequential)"><!-- --></A><H3>
406
addFinally</H3>
407
<PRE>
408
public void <B>addFinally</B>(org.apache.tools.ant.taskdefs.Sequential&nbsp;seq)
409
                throws org.apache.tools.ant.BuildException</PRE>
410
<DL>
411
<DD>Adds a nested &lt;finally&gt; block - at most one is allowed.
412
<P>
413
<DD><DL>
414
 
415
<DT><B>Throws:</B>
416
<DD><CODE>org.apache.tools.ant.BuildException</CODE></DL>
417
</DD>
418
</DL>
419
<HR>
420
 
421
<A NAME="setProperty(java.lang.String)"><!-- --></A><H3>
422
setProperty</H3>
423
<PRE>
424
public void <B>setProperty</B>(java.lang.String&nbsp;p)</PRE>
425
<DL>
426
<DD>Sets the property attribute.
427
<P>
428
<DD><DL>
429
</DL>
430
</DD>
431
</DL>
432
<HR>
433
 
434
<A NAME="setReference(java.lang.String)"><!-- --></A><H3>
435
setReference</H3>
436
<PRE>
437
public void <B>setReference</B>(java.lang.String&nbsp;r)</PRE>
438
<DL>
439
<DD>Sets the reference attribute.
440
<P>
441
<DD><DL>
442
</DL>
443
</DD>
444
</DL>
445
<HR>
446
 
447
<A NAME="execute()"><!-- --></A><H3>
448
execute</H3>
449
<PRE>
450
public void <B>execute</B>()
451
             throws org.apache.tools.ant.BuildException</PRE>
452
<DL>
453
<DD>The heart of the task.
454
<P>
455
<DD><DL>
456
<DT><B>Overrides:</B><DD><CODE>execute</CODE> in class <CODE>org.apache.tools.ant.Task</CODE></DL>
457
</DD>
458
<DD><DL>
459
 
460
<DT><B>Throws:</B>
461
<DD><CODE>org.apache.tools.ant.BuildException</CODE></DL>
462
</DD>
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