Component Class object exists in several instances
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Key: TAPESTRY-1776
URL: https://issues.apache.org/jira/browse/TAPESTRY-1776
Project: Tapestry
Issue Type: Bug
Components: tapestry-core
Affects Versions: 5.0.5
Environment: Mac OS X, Eclipse 3.3, Jetty Launcher, Jetty 5
Reporter: Ognen Ivanovski
I get the following exception:
java.lang.IllegalArgumentException: Could not find a coercion from type
com.telekurs.pass.online.permissiongui.components.CheckboxGroup to type
com.telekurs.pass.online.permissiongui.components.CheckboxGroup. Available
coercions:... (full trace attached)
Note that it says "cannot find a coercion from A to A". I did some debugging
and indeed the class CheckboxGroup was represented by two different objects.
Tapestry should not allow for a component class to be loaded differently than
in the modified version.
More details:
- CheckBoxGroup is a component very similar to RadioGroup (80% code similar)
it is used to group render a set of checkboxes with the same name.
- BulkSelect is a js component that i used for "select all" and "select none"
operations in connection to the CheckBoxGroup. It has a
@Parameter(required = true, defaultPrefix="component")
private CheckboxGroup checkboxes;
They are used in the following way:
<t:BulkSelect checkboxes="permissionSelections" select="true" />
<t:CheckboxGroup t:id="permissionSelections"
value="selected" encoder="permissionValueEncoder" disabled="disabled">
<!-- ...-->
</t:CheckboxGroup>
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