[TAPESTRY-2517] A failed service injection into a component field is visible in the browser as a spurious error about field _$resources

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 5.0.13
• Fix Version/s: 5.0.15
• Component/s: tapestry-core
• Assignee: Howard Lewis Ship
• Reporter: Howard Lewis Ship
• Created: 11/Jul/08 20:29
• Updated: 11/Sep/08 00:37
• Resolved: 11/Sep/08 00:37

Description

The error was that I was injecting a service but hadn't bound it in my AppModule. Scanning down the console, I found the exception:

Caused by: java.lang.RuntimeException: Error obtaining injected value for field com.formos.blog.pages.blog.BlogIndex.blogDAO: No service implements the interface com.formos.blog.services.BlogDAO.
at org.apache.tapestry5.internal.transform.InjectWorker.transform(InjectWorker.java:68)
at $ComponentClassTransformWorker_11b13c8fa72.transform($ComponentClassTransformWorker_11b13c8fa72.java)
at $ComponentClassTransformWorker_11b13c8fa68.transform($ComponentClassTransformWorker_11b13c8fa68.java)
at org.apache.tapestry5.internal.services.ComponentClassTransformerImpl.transformComponentClass(ComponentClassTransformerImpl.java:161)
... 98 more
Caused by: java.lang.RuntimeException: No service implements the interface com.formos.blog.services.BlogDAO.
at org.apache.tapestry5.ioc.internal.RegistryImpl.getService(RegistryImpl.java:523)
at org.apache.tapestry5.ioc.internal.ObjectLocatorImpl.getService(ObjectLocatorImpl.java:44)
at org.apache.tapestry5.internal.services.ServiceInjectionProvider.provideInjection(ServiceInjectionProvider.java:40)
at $InjectionProvider_11b13c8fa74.provideInjection($InjectionProvider_11b13c8fa74.java)
at $InjectionProvider_11b13c8fa6d.provideInjection($InjectionProvider_11b13c8fa6d.java)
at org.apache.tapestry5.internal.transform.InjectWorker.transform(InjectWorker.java:57)

However, the exception in the web browser was:

java.lang.RuntimeException
Class com.formos.blog.pages.blog.BlogIndex contains field(s) (_$resources) that are not private. You should change these fields to private, and add accessor methods if needed.

Stack trace

• org.apache.tapestry5.internal.services.InternalClassTransformationImpl.verifyFields(InternalClassTransformationImpl.java:294)
• org.apache.tapestry5.internal.services.InternalClassTransformationImpl.preloadMemberNames(InternalClassTransformationImpl.java:256)
• org.apache.tapestry5.internal.services.InternalClassTransformationImpl.<init>(InternalClassTransformationImpl.java:151)
• org.apache.tapestry5.internal.services.ComponentClassTransformerImpl.transformComponentClass(ComponentClassTransformerImpl.java:154)
• org.apache.tapestry5.internal.services.ComponentInstantiatorSourceImpl.onLoad(ComponentInstantiatorSourceImpl.java:182)
• javassist.Loader.findClass(Loader.java:340)