Major ・m:immediate="true"時のAction
・中で例外が発生してErrorPageManagerImplでハンドリング
・遷移元ページにForEachがある
という状況でNullPointerExceptionが発生する問題。
errorpage/pageTran1.htmlを、こんな風にする。
<html xmlns:m="http://www.seasar.org/maya"
m:extends="/WEB-INF/layout/layout.html">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=Windows-31j" />
<title>The page transition with exception</title>
</head>
<body>
<span m:inject="f:param" m:name="layoutTitle" m:value="The page transition with exception"/>
<span m:inject="s:insert" m:name="body">
<form>
<table border="1">
<tr bgcolor="#7777FF">
<th>Key</th>
<th>Name</th>
<th colspan="2">to ResultPage</th>
</tr>
<span m:inject="s:forEach" m:items="#
"
m:var="e" m:varIndex="i">
<tr>
<td><span m:value="#
">111</span></td>
<td><span m:value="#
">aaa</span></td>
<td><a href="forEachResult.html" m:action="forEachResult">to ResultPage
<span m:inject="f:param" m:name="index" m:value="#
</a>
</td>
<td>
<input type="button" m:action="forEachResult" value="to ResultPage"
onclick="location.href='forEachResult.html'">
<span m:inject="f:param" m:name="index" m:value="#{i}
"/>
</input>
</td>
</tr>
</span>
</table>
<input type="button" m:immediate="true" value="The exception due to action" m:action="#
"/>
<input type="button" value="The exception due to initialize action" m:action="pageTran2" onclick="location.href='pageTran2.html'" m:immediate="true"/>
</form>
</span>
</body>
</html>
で、左側のボタンを押すと、NullPointerExceptionが発生する。