createActionLink cause exception when it is called in the page class, but
works when it is called from the template.
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Key: TAPESTRY-2184
URL: https://issues.apache.org/jira/browse/TAPESTRY-2184
Project: Tapestry
Issue Type: Bug
Components: tapestry-core
Affects Versions: 5.0.10
Reporter: Angelo Chen
createActionLink cause exception when it is called in the page class(see
onActionFromDelete), but works when it is called from the template, this works
in 5.0.6 and 7, but fails in 5.0.9 and 5.0.10, sample code and error follows:
public class TestPage1 {
@Inject
private ComponentResources resources;
private Object[] _objs;
public Class onActivate(Object[] obj) { _objs = obj; return null; }
public Object[] onPassivate() { return _objs;}
Link onActionFromDelete(Long id) {
String x = getTheLink(); // this fails with exception
return null;
}
public String getTheLink() {
Link l = resources.createActionLink("DeleteConfirm", false);
return l.toURI();
}
public Object onDeleteConfirm(Long id) {
return null;
}
}
template:
<body>
<t:ActionLink t:id="Delete" context="1">Delete me</t:ActionLink><br />
<p>My Link is : ${theLink}</p>
</body>
errors:
java.lang.NullPointerException
Stack trace
*
org.apache.tapestry.internal.services.LinkFactoryImpl.collectActivationContextForPage(LinkFactoryImpl.java:217)
*
org.apache.tapestry.internal.services.LinkFactoryImpl.createActionLink(LinkFactoryImpl.java:129)
*
org.apache.tapestry.internal.structure.PageImpl.createActionLink(PageImpl.java:156)
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