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Posted to dev@tapestry.apache.org by "Howard M. Lewis Ship (Closed) (JIRA)" <ji...@apache.org> on 2012/02/21 19:43:46 UTC
[jira] [Closed] (TAP5-1851) Cannot store interface used by page
classes in pages package
[ https://issues.apache.org/jira/browse/TAP5-1851?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Howard M. Lewis Ship closed TAP5-1851.
--------------------------------------
Resolution: Invalid
Assignee: Howard M. Lewis Ship
The documentation is very specific that top-level classes in the controlled packages (base, components, mixins, pages) must be component classes.
Interfaces need to go elsewhere, especially if the interfaces need to cross the class loader boundary (between component classes and ordinary classes).
> Cannot store interface used by page classes in pages package
> ------------------------------------------------------------
>
> Key: TAP5-1851
> URL: https://issues.apache.org/jira/browse/TAP5-1851
> Project: Tapestry 5
> Issue Type: Bug
> Components: tapestry-core
> Affects Versions: 5.3
> Reporter: Paul Stanton
> Assignee: Howard M. Lewis Ship
> Labels: ClassFormatError, interface, page
>
> I have 2 pages which must implement an interface in order to make them interoperable with another component. The interface is stored in the tapestry pages package.
> Moving the interface to a non-tapestry package avoids the exception (eg com.blah.helpers)
> package com.blah.pages;
> public interface MyPageInterface {
> void doSomething();
> }
> package com.blah.pages;
> public class MyPage1 implements MyPageInterface {
> public void doSomething(){ ... }
> }
> package com.blah.pages;
> public class MyPage2 implements MyPageInterface {
> public void doSomething(){ ... }
> }
> 2012-02-20 12:47:13,875 http-80-1 ERROR org.apache.tapestry5.ioc.Registry - Illegal field modifiers in class com/blah/pages/MyPageInterface: 0x12
> 2012-02-20 12:47:13,875 http-80-1 ERROR org.apache.tapestry5.ioc.Registry - Operations trace:
> 2012-02-20 12:47:13,875 http-80-1 ERROR org.apache.tapestry5.ioc.Registry - [ 1] Creating instantiator for component class com.blah.pages.MyPage1
> 2012-02-20 12:47:13,890 http-80-1 ERROR org.apache.tapestry5.services.TapestryModule.RequestExceptionHandler - Processing of request failed with uncaught exception: Illegal field modifiers in class com/blah/pages/MyPageInterface: 0x12
> java.lang.ClassFormatError: Illegal field modifiers in class com/blah/pages/MyPageInterface: 0x12
> at java.lang.ClassLoader.defineClass1(Native Method)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
> at org.apache.tapestry5.internal.plastic.PlasticClassLoader.defineClassWithBytecode(PlasticClassLoader.java:52)
> at org.apache.tapestry5.internal.plastic.PlasticClassPool.realize(PlasticClassPool.java:144)
> at org.apache.tapestry5.internal.plastic.PlasticClassPool.realizeTransformedClass(PlasticClassPool.java:122)
> at org.apache.tapestry5.internal.plastic.PlasticClassImpl.createInstantiator(PlasticClassImpl.java:356)
> at org.apache.tapestry5.internal.plastic.PlasticClassPool.loadAndTransformClass(PlasticClassPool.java:350)
> at org.apache.tapestry5.internal.plastic.PlasticClassLoader.loadClass(PlasticClassLoader.java:38)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
> at java.lang.ClassLoader.defineClass1(Native Method)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
> at org.apache.tapestry5.internal.plastic.PlasticClassLoader.defineClassWithBytecode(PlasticClassLoader.java:52)
> at org.apache.tapestry5.internal.plastic.PlasticClassPool.realize(PlasticClassPool.java:144)
> at org.apache.tapestry5.internal.plastic.PlasticClassPool.realizeTransformedClass(PlasticClassPool.java:122)
> at org.apache.tapestry5.internal.plastic.PlasticClassImpl.createInstantiator(PlasticClassImpl.java:356)
> at org.apache.tapestry5.internal.plastic.PlasticClassPool.loadAndTransformClass(PlasticClassPool.java:350)
> at org.apache.tapestry5.internal.plastic.PlasticClassLoader.loadClass(PlasticClassLoader.java:38)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
> at org.apache.tapestry5.internal.plastic.PlasticClassPool.getClassInstantiator(PlasticClassPool.java:510)
> at org.apache.tapestry5.plastic.PlasticManager.getClassInstantiator(PlasticManager.java:189)
> at org.apache.tapestry5.internal.services.ComponentInstantiatorSourceImpl$2.invoke(ComponentInstantiatorSourceImpl.java:234)
> at org.apache.tapestry5.internal.services.ComponentInstantiatorSourceImpl$2.invoke(ComponentInstantiatorSourceImpl.java:228)
> at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74)
> at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87)
> at org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1121)
> at org.apache.tapestry5.internal.services.ComponentInstantiatorSourceImpl.createInstantiatorForClass(ComponentInstantiatorSourceImpl.java:226)
> at org.apache.tapestry5.internal.services.ComponentInstantiatorSourceImpl.getInstantiator(ComponentInstantiatorSourceImpl.java:216)
> at $ComponentInstantiatorSource_1300c5f171672.getInstantiator(Unknown Source)
> at org.apache.tapestry5.internal.services.ComponentModelSourceImpl.getModel(ComponentModelSourceImpl.java:34)
> at org.apache.tapestry5.internal.services.ComponentModelSourceImpl.getPageModel(ComponentModelSourceImpl.java:39)
> at $ComponentModelSource_1300c5f171671.getPageModel(Unknown Source)
> at org.apache.tapestry5.internal.services.MetaDataLocatorImpl$2.valueForKey(MetaDataLocatorImpl.java:104)
> at org.apache.tapestry5.internal.services.MetaDataLocatorImpl.getSymbolExpandedValueFromCache(MetaDataLocatorImpl.java:119)
> at org.apache.tapestry5.internal.services.MetaDataLocatorImpl.findMeta(MetaDataLocatorImpl.java:99)
> at $MetaDataLocator_1300c5f171668.findMeta(Unknown Source)
> at org.apache.tapestry5.internal.services.RequestSecurityManagerImpl.isSecure(RequestSecurityManagerImpl.java:104)
> at org.apache.tapestry5.internal.services.RequestSecurityManagerImpl.needsRedirect(RequestSecurityManagerImpl.java:94)
> at org.apache.tapestry5.internal.services.RequestSecurityManagerImpl.checkForInsecurePageRenderRequest(RequestSecurityManagerImpl.java:68)
> at $RequestSecurityManager_1300c5f171665.checkForInsecurePageRenderRequest(Unknown Source)
> at org.apache.tapestry5.services.TapestryModule$37.handle(TapestryModule.java:2204)
> at $PageRenderRequestHandler_1300c5f17168e.handle(Unknown Source)
> at $PageRenderRequestHandler_1300c5f171683.handle(Unknown Source)
> at org.apache.tapestry5.internal.services.ComponentRequestHandlerTerminator.handlePageRender(ComponentRequestHandlerTerminator.java:48)
> at $ComponentRequestFilter_1300c5f171681.handlePageRender(Unknown Source)
> at $ComponentRequestHandler_1300c5f171684.handlePageRender(Unknown Source)
> at org.apache.tapestry5.services.InitializeActivePageName.handlePageRender(InitializeActivePageName.java:47)
> at $ComponentRequestHandler_1300c5f171684.handlePageRender(Unknown Source)
> at $ComponentRequestHandler_1300c5f171656.handlePageRender(Unknown Source)
> at org.apache.tapestry5.internal.services.PageRenderDispatcher.dispatch(PageRenderDispatcher.java:45)
> ...
> IMHO, there is no logical reason why this should not work - I realise however there may be a technical reason but in this case the error message should be more descriptive.
> maybe related to TAP5-1737?
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