[TAPESTRY-896] using <component id="x" copy-of="x"> throws NullPointerException

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 4.0
• Fix Version/s: 4.0.1
• Component/s: Framework
• Assignee: Jesse Kuhnert
• Reporter: Ron Piterman
• Created: 25/Mar/06 22:05
• Updated: 29/Mar/06 01:17
• Resolved: 29/Mar/06 01:17

Description

When the copy-of is the same as the id, tapestry does not detect the problem, but a NullPointerException is thrown on

1. org.apache.tapestry.resolver.ComponentSpecificationResolverImpl.resolve(ComponentSpecificationResolverImpl.java:95)
2. $ComponentSpecificationResolver_10a31b1a2d5.resolve($ComponentSpecificationResolver_10a31b1a2d5.java)
3. $ComponentSpecificationResolver_10a31b1a2d6.resolve($ComponentSpecificationResolver_10a31b1a2d6.java)
4. org.apache.tapestry.pageload.PageLoader.constructComponent(PageLoader.java:393)
5. org.apache.tapestry.pageload.PageLoader.loadPage(PageLoader.java:613)
6. $IPageLoader_10a31b1a2c3.loadPage($IPageLoader_10a31b1a2c3.java)
7. $IPageLoader_10a31b1a2c4.loadPage($IPageLoader_10a31b1a2c4.java)
8. org.apache.tapestry.pageload.PageSource.getPage(PageSource.java:120)
9. $IPageSource_10a31b1a216.getPage($IPageSource_10a31b1a216.java)
10. $IPageSource_10a31b1a215.getPage($IPageSource_10a31b1a215.java)
11. org.apache.tapestry.engine.RequestCycle.loadPage(RequestCycle.java:268)
12. org.apache.tapestry.engine.RequestCycle.getPage(RequestCycle.java:251)
    ...

maybe a check should be added somewhere, then again, maybe its very rair that someone makes this typo...