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                                        <td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="http://jira.qos.ch/browse/LOGBACK" style="color: #3b73af; text-decoration: none">logback</a> / <a href="http://jira.qos.ch/browse/LOGBACK-1215" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-static-bug-693b8d7b-eee7-416a-9fe4-a9bad69b0753" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="http://jira.qos.ch/browse/LOGBACK-1215" style="color: #3b73af; text-decoration: none">LOGBACK-1215</a> 
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                                            Issue Type:
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                                            Assignee:
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                                            Components:
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                                             logback-core 
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                                            Created:
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                                             19/Oct/16 2:58 PM 
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                                            Labels:
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                                             exception 
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                                            Priority:
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                                            Reporter:
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                                            <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">It's known that:</p> 
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                                                    <pre class="code-java" style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
logger.error("<span class="code-object" style="color: #910091">String</span> {} with {} some {} arguments, object1, object2, object3, exception);
</pre> 
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                                            <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">will correctly interpolate the three objects' object.toString() where the " {} " exist in the string. </p> 
                                            <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">However, this will produce unintuitive behavior:</p> 
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                                                    <pre class="code-java" style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
logger.error("<span class="code-object" style="color: #910091">String</span> {} with {} some {} arguments, object1, object2, exception);
</pre> 
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                                            <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Expected behavior: the string is interpolated properly, with the third argument being the result of exception.toString()<br /> Actual behavior: the third " {} " literally prints out " {} ".</p> 
                                            <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">This is worse if you're trying to print multiple exceptions:</p> 
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                                                <div class="codeContent panelContent" style="padding: 9px 12px"> 
                                                    <pre class="code-java" style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
logger.error(<span class="code-quote" style="color: #009100">"Exception 1: {}, Exception 2: {}"</span>, exception1, exception2);
</pre> 
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                                            <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">This will have the very unintuitive behavior of printing this, essentially leaving the "{}" in the string.</p> 
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                                                    <pre class="code-java" style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
<span class="code-quote" style="color: #009100">"Exception 1: {}, Exception 2: {}"</span>
</pre> 
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