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<img id="email-avatar" src="http://jira.qos.ch/secure/useravatar?avatarId=10122" alt="" height="48" width="48" border="0" align="left" style="padding:0;margin: 0 16px 16px 0;" />
<div id="email-action" style="padding: 0 0 8px 0;font-size:12px;line-height:18px;">
<a class="user-hover" rel="km" id="email_km" href="http://jira.qos.ch/secure/ViewProfile.jspa?name=km" style="color:#326ca6;">Krzysztof Michalski</a>
created <img src="http://jira.qos.ch/images/icons/issuetypes/bug.png" height="16" width="16" border="0" align="absmiddle" alt="Bug"> <a style='color:#326ca6;text-decoration:none;' href='http://jira.qos.ch/browse/LOGBACK-908'>LOGBACK-908</a>
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<a style='color:#326ca6;text-decoration:none;' href='http://jira.qos.ch/browse/LOGBACK-908'><strong>Variable substitution doesn't work correctly if the variable is an empty string</strong></a>
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<td id="email-gutter" style="width:64px;white-space:nowrap;"></td>
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<strong style="font-weight:normal;color:#505050;">Issue Type:</strong>
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<img src="http://jira.qos.ch/images/icons/issuetypes/bug.png" height="16" width="16" border="0" align="absmiddle" alt="Bug"> Bug
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<strong style="font-weight:normal;color:#505050;">Affects Versions:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
1.0.13 </td>
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<strong style="font-weight:normal;color:#505050;">Assignee:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
<a class="user-hover" rel="logback-dev@qos.ch" id="email_logback-dev@qos.ch" href="http://jira.qos.ch/secure/ViewProfile.jspa?name=logback-dev%40qos.ch" style="color:#326ca6;">Logback dev list</a>
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<strong style="font-weight:normal;color:#505050;">Components:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
logback-classic </td>
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<strong style="font-weight:normal;color:#505050;">Created:</strong>
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04/Oct/13 2:33 AM
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<strong style="font-weight:normal;color:#505050;">Description:</strong>
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<p style='margin-top:0;margin-bottom:10px;'>Variable substitution doesn't work correctly if the variable is an empty string. Example from a logback.xml file: <br/>
<property name="MY_PASSWORD" value=""/><br/>
...<br/>
<password>$</p>
{MY_PASSWORD}
<p style='margin-top:0;margin-bottom:10px;'></password></p>
<p style='margin-top:0;margin-bottom:10px;'>The substitution in the password element didn't work correctly. Using an empty password element instead of variable substitution solved the problem:<br/>
<password></password></p>
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<strong style="font-weight:normal;color:#505050;">Environment:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
<p style='margin-top:0;margin-bottom:10px;'>Java, Spring</p>
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<strong style="font-weight:normal;color:#505050;">Project:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
<a style="color:#326ca6;" href="http://jira.qos.ch/browse/LOGBACK">logback</a>
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<strong style="font-weight:normal;color:#505050;">Labels:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
substitution
properties
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<strong style="font-weight:normal;color:#505050;">Priority:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
<img src="http://jira.qos.ch/images/icons/priorities/minor.png" height="16" width="16" border="0" align="absmiddle" alt="Minor"> Minor
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<strong style="font-weight:normal;color:#505050;">Reporter:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
<a class="user-hover" rel="km" id="email_km" href="http://jira.qos.ch/secure/ViewProfile.jspa?name=km" style="color:#326ca6;">Krzysztof Michalski</a>
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