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The issues are listed in the same order as encountered after changing jars over from 2.0.x to 2.0.1.x Noteworthy, the migration was done under the following setup: Fedora core 6, JDK 1.6.0_2 and Tomcat 6.0.10 running from MyEclipse plugin.
Result type "redirect-action" was renamed to "redirectAction":
Problem Symptom:
| Code Block |
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SEVERE: Exception starting filter struts2
Unable to load configuration. - action - file:/home/giaz/code/.metadata/.plugins/
com.genuitec.eclipse.easie.tomcat.myeclipse/tomcat/webapps/webui/WEB-INF/classes/struts.xml:39:98
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:58)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:370)
...
Caused by: Error building results for action ScheduleJob in namespace - action - file:/home/giaz/code/.metadata/.plugins/
com.genuitec.eclipse.easie.tomcat.myeclipse/tomcat/webapps/webui/WEB-INF/classes/struts.xml:39:98
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:372)
... 30 more
Caused by: There is no result type defined for type 'redirect-action' mapped with name 'success' - result -
file:/home/giaz/code/.metadata/.plugins/com.genuitec.eclipse.easie.tomcat.myeclipse/tomcat/webapps/webui/
WEB-INF/classes/struts.xml:40:50
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.buildResults(XmlConfigurationProvider.java:616)
... 35 more
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The struts.xml before:
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<action name="ScheduleJob" class="com.sag.optimizer.ui.web.action.scheduler.ScheduleJobAction">
<result name="success" type="redirect-action">
<param name="actionName">ListDisplayOptimizationJobStatus</param>
</result>
<result name="error" type="tiles">webui.requestFailed</result>
</action>
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To resolve
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this issue modify the struts.xml action definition to:
| Code Block |
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<action name="ScheduleJob" class="com.sag.optimizer.ui.web.action.scheduler.ScheduleJobAction">
<result name="success" type="redirectAction">
<param name="actionName">ListDisplayOptimizationJobStatus</param>
</result>
<result name="error" type="tiles">webui.requestFailed</result>
</action>
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or to:
| Code Block |
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<action name="ScheduleJob" class="com.sag.optimizer.ui.web.action.scheduler.ScheduleJobAction">
<result name="success" type="redirect">ListDisplayOptimizationJobStatus.action</result>
<result name="error" type="tiles">webui.requestFailed</result>
</action>
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Tiles 2.1.x plugin tiles.xml now requires DOCTYPE:
Problem Symptom:
| Code Block |
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Nov 22, 2007 11:38:11 AM org.apache.tiles.impl.BasicTilesContainer init
INFO: Initializing Tiles2 container. . .
Nov 22, 2007 11:38:11 AM org.apache.commons.digester.Digester error
SEVERE: Parse Error at line 2 column 19: Document is invalid: no grammar found.
org.xml.sax.SAXParseException: Document is invalid: no grammar found.
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195)
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:131)
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| Info |
|---|
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This is due to the fact that Tiles 2.0.5 now turns validation on as default. |
The tiles.xml page before:
| Code Block |
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<?xml version="1.0" encoding="ISO-8859-1" ?>
<tiles-definitions/>
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To resolve the issue simply add:
| Code Block |
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<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE tiles-definitions PUBLIC
"-//Apache Software Foundation//DTD Tiles Configuration 2.0//EN"
"http://struts.apache.org/dtds/tiles-config_2_0.dtd">
<tiles-definitions/>
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<s:head theme="ajax"/> is obsolete, use different theme:
Problem Symptom:
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Accessing any page that includes <s:head theme="ajax"/> produces the following error:
| Code Block |
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Nov 22, 2007 1:54:51 PM freemarker.log.JDK14LoggerFactory$JDK14Logger error
SEVERE:
Expression parameters.parseContent is undefined on line 45, column 28 in template/ajax/head.ftl.
The problematic instruction:
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==> ${parameters.parseContent?string} [on line 45, column 26 in template/ajax/head.ftl]
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Java backtrace for programmers:
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freemarker.core.InvalidReferenceException: Expression parameters.parseContent is undefined on line 45,
column 28 in template/ajax/head.ftl.
at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:124)
at freemarker.core.TemplateObject.invalidTypeException(TemplateObject.java:134)
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...
Resolution is to either remove the "<s:head theme="ajax"/>" or use a different theme e.g. <s:head theme="xhtml" />
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Ajax UI tags were moved to the new dojo plugin, use /struts-dojo-tags taglib instead of (or in addition to) /struts-tags:
Problem Symptom:
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Accessing a page containing ajax UI tags through using the struts 2 taglib will produce the following error:
| Code Block |
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SEVERE: Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: /jsp/list/listOptimizationJobStatus.jsp(6,0) Attribute href invalid for tag div according to TLD
at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
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JSP before migration:
| Code Block |
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<%@ page contentType="text/html; charset=UTF-8" %>
<%@ taglib prefix="display" uri="http://displaytag.sf.net" %>
<%@ taglib prefix="s" uri="/struts-tags"%>
<s:url id="jobStatus" includeParams="get" value="/RefreshOptimizationJobStatus.action" />
<s:div id="jobStatus" theme="ajax" href="%{jobStatus}" updateFreq="5000" indicator="indicator">
</s:div>
<img id="indicator" src="img/indicator.gif" alt="Loading..." style="display:none"/>
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| Code Block |
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<%@ page contentType="text/html; charset=UTF-8" language="java" %>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%@ taglib prefix="sx" uri="/struts-dojo-tags" %>
<s:url var="jobStatus" includeParams="get" value="/RefreshOptimizationJobStatus.action" />
<sx:div id="jobStatus" href="%{#jobStatus}" updateFreq="5000" autoStart="true" indicator="indicator">
</sx:div>
<img id="indicator" src="img/indicator.gif" alt="Loading..." style="display:none"/>
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Note the use of remote div is now through the dojo plugin taglib sx. Other ui tags are also no longer available through the /struts-tags taglib but only through the /struts-dojo-tags taglib: datetimepicker and autocompleter.
User-defined converter (subclassing StrutsTypeConverter) will no longer be needed when using datetimepicker:
Problem Symptom: Your custom StrutsTypeConverter implementation does not longer work in version 2.1.x. In 2.0.x you needed to implement a custom StrutsTypeConverter e.g. StringToDateConverter to be able to parse and convert to Date the String posted from a datetimepicker control into the action. In version 2.0.x datetimepicker was posting a String formatted as specified in the "displayFormat" field e.g.
| Code Block |
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<%@ taglib prefix="s" uri="/struts-tags"%>
<s:datetimepicker label="Begin Date" name="beginDate" displayFormat="yyyy.MM.dd">
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In version 2.1.x datetimepicker will post a String Date in RFC 3339 format, so you can define your setter to receive a Date directly and avoid using converters for this purpose e.g.
| Code Block |
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<%@ taglib prefix="s" uri="/struts-tags"%>
<%@ taglib prefix="sx" uri="/struts-dojo-tags" %>
<sx:datetimepicker label="Begin Date" name="beginDate" displayFormat="yyyy.MM.dd">
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Need to disable struts.devMode. This is not really a migration issue but rather seems a bug in 2.1.x:
Problem Symptom: You receive the following exception accessing a page:
| Code Block |
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WARNING: Could not find property [struts.valueStack]
ognl.OgnlException: target is null for setProperty(null, "preventCache", [Ljava.lang.String;@5f262a85)
at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:1651)
at ognl.ASTProperty.setValueBody(ASTProperty.java:101)
at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:177)
at ognl.SimpleNode.setValue(SimpleNode.java:246)
at ognl.ASTChain.setValueBody(ASTChain.java:172)
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Resolution is to change set devMode to false in struts.xml e.g.
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from
| Code Block |
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<constant name="struts.devMode" value="true" />
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to
| Code Block |
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<constant name="struts.devMode" value="false" />
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