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我需要我的應用程序從數據庫源讀取它的配置，但我必須應用自己的緩存機制來滿足更新配置和性能的靈活性（不需要訪問數據庫每當需要值時）（Tapestry v5.3.5）貢獻一個非緩存SymbolSource
執行緩存機制的服務是SymbolSourceImpl。因爲我需要掛毯來緩存可高速緩存的值，如JVM選項。我需要貢獻另一個符號源。但SymbolObjectProvider（分佈於MasterObjectProvider）僅保留SymbolSource的一個實例，我無法覆蓋SymbolSource默認綁定，所以我想像爲掛毯做默認SymbolObjectProvider一樣，爲MasterObjectProvider貢獻整個另一個符號對象提供者。
但在這裏是當我試圖貢獻我自己的符號對象提供的一個問題：
@Contribute(MasterObjectProvider.class)
public static void setupDBSYmbolObjectProviders(OrderedConfiguration<ObjectProvider> configuration) {
configuration.addInstance("DBSymbol", **DBSymbolObjectProvider**.class, OrderConstraintBuilder.before("Symbol").build());
}
我DBSymbolObjectProvider構造是這樣的：
public DBSymbolObjectProvider(IDBSymbolSource symbolSource, @Builtin TypeCoercer typeCoercer) {
this.symbolSource = symbolSource;
this.typeCoercer = typeCoercer;
}
掛毯解決TypeCoercer但它couldn」 t解決IDBSymbolSource並拋出以下異常，這是合乎邏輯的，因爲MasterObjectProvider尚未構建以解決IDBSymbolSource。
java.lang.RuntimeException: Exception constructing service 'RegistryStartup': Unable to instantiate class com.skycomm.IpKaizenTAModule as a module: Exception constructing service 'MasterObjectProvider': Error invoking service contribution method com.skycomm.ipkaizen.services.CoreModule.setupDBSYmbolObjectProviders(OrderedConfiguration): Exception constructing service 'MasterObjectProvider': Construction of service 'MasterObjectProvider' has failed due to recursion: the service depends on itself in some way. Please check org.apache.tapestry5.ioc.internal.services.MasterObjectProviderImpl(List, OperationTracker) (at MasterObjectProviderImpl.java:33) via org.apache.tapestry5.ioc.services.TapestryIOCModule.bind(ServiceBinder) (at TapestryIOCModule.java:49) for references to another service that is itself dependent on service 'MasterObjectProvider'.
at org.apache.tapestry5.ioc.internal.services.JustInTimeObjectCreator.obtainObjectFromCreator(JustInTimeObjectCreator.java:75)
at org.apache.tapestry5.ioc.internal.services.JustInTimeObjectCreator.createObject(JustInTimeObjectCreator.java:54)
at $Runnable_440ab1f4dbb6.delegate(Unknown Source)
at $Runnable_440ab1f4dbb6.run(Unknown Source)
at org.apache.tapestry5.ioc.internal.RegistryImpl.performRegistryStartup(RegistryImpl.java:325)
at org.apache.tapestry5.ioc.internal.RegistryWrapper.performRegistryStartup(RegistryWrapper.java:80)
at com.skycomm.IpKaizenTA.main(IpKaizenTA.java:25)
Caused by: java.lang.RuntimeException: Unable to instantiate class com.skycomm.IpKaizenTAModule as a module: Exception constructing service 'MasterObjectProvider': Error invoking service contribution method com.skycomm.ipkaizen.services.CoreModule.setupDBSYmbolObjectProviders(OrderedConfiguration): Exception constructing service 'MasterObjectProvider': Construction of service 'MasterObjectProvider' has failed due to recursion: the service depends on itself in some way. Please check org.apache.tapestry5.ioc.internal.services.MasterObjectProviderImpl(List, OperationTracker) (at MasterObjectProviderImpl.java:33) via org.apache.tapestry5.ioc.services.TapestryIOCModule.bind(ServiceBinder) (at TapestryIOCModule.java:49) for references to another service that is itself dependent on service 'MasterObjectProvider'.
at org.apache.tapestry5.ioc.internal.ModuleImpl.instantiateModuleInstance(ModuleImpl.java:447)
at org.apache.tapestry5.ioc.internal.ModuleImpl.access$1200(ModuleImpl.java:39)
at org.apache.tapestry5.ioc.internal.ModuleImpl$6$1.invoke(ModuleImpl.java:355)
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:1124)
at org.apache.tapestry5.ioc.internal.ModuleImpl$6.run(ModuleImpl.java:350)
at org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier$2.invoke(ConcurrentBarrier.java:200)
at org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier$2.invoke(ConcurrentBarrier.java:197)
at org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withWrite(ConcurrentBarrier.java:140)
at org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withWrite(ConcurrentBarrier.java:206)
at org.apache.tapestry5.ioc.internal.ModuleImpl$7.invoke(ModuleImpl.java:366)
at org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:85)
at org.apache.tapestry5.ioc.internal.ModuleImpl.getModuleBuilder(ModuleImpl.java:374)
at org.apache.tapestry5.ioc.internal.ContributionDefImpl.invokeMethod(ContributionDefImpl.java:113)
at org.apache.tapestry5.ioc.internal.ContributionDefImpl.contribute(ContributionDefImpl.java:80)
at org.apache.tapestry5.ioc.internal.RegistryImpl$9.run(RegistryImpl.java:633)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl$1.invoke(OperationTrackerImpl.java:51)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl$1.invoke(OperationTrackerImpl.java:48)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.run(OperationTrackerImpl.java:47)
at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.run(PerThreadOperationTracker.java:76)
at org.apache.tapestry5.ioc.internal.RegistryImpl.addToOrderedConfiguration(RegistryImpl.java:629)
at org.apache.tapestry5.ioc.internal.RegistryImpl.getOrderedConfiguration(RegistryImpl.java:483)
at org.apache.tapestry5.ioc.internal.ServiceResourcesImpl$2.invoke(ServiceResourcesImpl.java:110)
at org.apache.tapestry5.ioc.internal.ServiceResourcesImpl$2.invoke(ServiceResourcesImpl.java:107)
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:1124)
at org.apache.tapestry5.ioc.internal.ServiceResourcesImpl.getOrderedConfiguration(ServiceResourcesImpl.java:105)
at org.apache.tapestry5.ioc.internal.AbstractServiceCreator.getOrderedConfiguration(AbstractServiceCreator.java:123)
at org.apache.tapestry5.ioc.internal.AbstractServiceCreator.access$200(AbstractServiceCreator.java:35)
at org.apache.tapestry5.ioc.internal.AbstractServiceCreator$1.findResource(AbstractServiceCreator.java:103)
at org.apache.tapestry5.ioc.internal.util.DelegatingInjectionResources.findResource(DelegatingInjectionResources.java:38)
at org.apache.tapestry5.ioc.internal.util.InternalUtils.calculateInjection(InternalUtils.java:231)
at org.apache.tapestry5.ioc.internal.util.InternalUtils.access$000(InternalUtils.java:50)
at org.apache.tapestry5.ioc.internal.util.InternalUtils$4.invoke(InternalUtils.java:289)
at org.apache.tapestry5.ioc.internal.util.InternalUtils$4.invoke(InternalUtils.java:286)
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:1124)
at org.apache.tapestry5.ioc.internal.util.InternalUtils.calculateParameters(InternalUtils.java:293)
at org.apache.tapestry5.ioc.internal.util.InternalUtils$23.invoke(InternalUtils.java:1488)
at org.apache.tapestry5.ioc.internal.util.InternalUtils$23.invoke(InternalUtils.java:1483)
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:1124)
at org.apache.tapestry5.ioc.internal.util.InternalUtils.createConstructorConstructionPlan(InternalUtils.java:1480)
at org.apache.tapestry5.ioc.internal.ConstructorServiceCreator.getPlan(ConstructorServiceCreator.java:52)
at org.apache.tapestry5.ioc.internal.ConstructorServiceCreator.createObject(ConstructorServiceCreator.java:61)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator$1.invoke(OperationTrackingObjectCreator.java:45)
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:1124)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator.createObject(OperationTrackingObjectCreator.java:49)
at org.apache.tapestry5.ioc.internal.SingletonServiceLifecycle.createService(SingletonServiceLifecycle.java:29)
at org.apache.tapestry5.ioc.internal.LifecycleWrappedServiceCreator.createObject(LifecycleWrappedServiceCreator.java:46)
at org.apache.tapestry5.ioc.internal.AdvisorStackBuilder.createObject(AdvisorStackBuilder.java:63)
at org.apache.tapestry5.ioc.internal.InterceptorStackBuilder.createObject(InterceptorStackBuilder.java:54)
at org.apache.tapestry5.ioc.internal.RecursiveServiceCreationCheckWrapper.createObject(RecursiveServiceCreationCheckWrapper.java:60)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator$1.invoke(OperationTrackingObjectCreator.java:45)
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:1124)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator.createObject(OperationTrackingObjectCreator.java:49)
at org.apache.tapestry5.ioc.internal.services.JustInTimeObjectCreator.obtainObjectFromCreator(JustInTimeObjectCreator.java:66)
... 6 more
Caused by: java.lang.RuntimeException: Exception constructing service 'MasterObjectProvider': Error invoking service contribution method com.skycomm.ipkaizen.services.CoreModule.setupDBSYmbolObjectProviders(OrderedConfiguration): Exception constructing service 'MasterObjectProvider': Construction of service 'MasterObjectProvider' has failed due to recursion: the service depends on itself in some way. Please check org.apache.tapestry5.ioc.internal.services.MasterObjectProviderImpl(List, OperationTracker) (at MasterObjectProviderImpl.java:33) via org.apache.tapestry5.ioc.services.TapestryIOCModule.bind(ServiceBinder) (at TapestryIOCModule.java:49) for references to another service that is itself dependent on service 'MasterObjectProvider'.
at org.apache.tapestry5.ioc.internal.services.JustInTimeObjectCreator.obtainObjectFromCreator(JustInTimeObjectCreator.java:75)
at org.apache.tapestry5.ioc.internal.services.JustInTimeObjectCreator.createObject(JustInTimeObjectCreator.java:54)
at $MasterObjectProvider_440ab1f4dbb7.delegate(Unknown Source)
at $MasterObjectProvider_440ab1f4dbb7.provide(Unknown Source)
at org.apache.tapestry5.ioc.internal.RegistryImpl.getObject(RegistryImpl.java:871)
at org.apache.tapestry5.ioc.internal.ObjectLocatorImpl.getObject(ObjectLocatorImpl.java:57)
at org.apache.tapestry5.ioc.internal.util.InternalUtils$6.run(InternalUtils.java:371)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl$1.invoke(OperationTrackerImpl.java:51)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl$1.invoke(OperationTrackerImpl.java:48)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.run(OperationTrackerImpl.java:47)
at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.run(PerThreadOperationTracker.java:76)
at org.apache.tapestry5.ioc.internal.RegistryImpl.run(RegistryImpl.java:1119)
at org.apache.tapestry5.ioc.internal.util.InternalUtils.injectIntoFields(InternalUtils.java:338)
at org.apache.tapestry5.ioc.internal.ModuleImpl.instantiateModuleInstance(ModuleImpl.java:433)
... 71 more
Caused by: java.lang.RuntimeException: Error invoking service contribution method com.skycomm.ipkaizen.services.CoreModule.setupDBSYmbolObjectProviders(OrderedConfiguration): Exception constructing service 'MasterObjectProvider': Construction of service 'MasterObjectProvider' has failed due to recursion: the service depends on itself in some way. Please check org.apache.tapestry5.ioc.internal.services.MasterObjectProviderImpl(List, OperationTracker) (at MasterObjectProviderImpl.java:33) via org.apache.tapestry5.ioc.services.TapestryIOCModule.bind(ServiceBinder) (at TapestryIOCModule.java:49) for references to another service that is itself dependent on service 'MasterObjectProvider'.
at org.apache.tapestry5.ioc.internal.ContributionDefImpl.invokeMethod(ContributionDefImpl.java:130)
at org.apache.tapestry5.ioc.internal.ContributionDefImpl.contribute(ContributionDefImpl.java:80)
at org.apache.tapestry5.ioc.internal.RegistryImpl$9.run(RegistryImpl.java:633)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl$1.invoke(OperationTrackerImpl.java:51)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl$1.invoke(OperationTrackerImpl.java:48)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.run(OperationTrackerImpl.java:47)
at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.run(PerThreadOperationTracker.java:76)
at org.apache.tapestry5.ioc.internal.RegistryImpl.addToOrderedConfiguration(RegistryImpl.java:629)
at org.apache.tapestry5.ioc.internal.RegistryImpl.getOrderedConfiguration(RegistryImpl.java:483)
at org.apache.tapestry5.ioc.internal.ServiceResourcesImpl$2.invoke(ServiceResourcesImpl.java:110)
at org.apache.tapestry5.ioc.internal.ServiceResourcesImpl$2.invoke(ServiceResourcesImpl.java:107)
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:1124)
at org.apache.tapestry5.ioc.internal.ServiceResourcesImpl.getOrderedConfiguration(ServiceResourcesImpl.java:105)
at org.apache.tapestry5.ioc.internal.AbstractServiceCreator.getOrderedConfiguration(AbstractServiceCreator.java:123)
at org.apache.tapestry5.ioc.internal.AbstractServiceCreator.access$200(AbstractServiceCreator.java:35)
at org.apache.tapestry5.ioc.internal.AbstractServiceCreator$1.findResource(AbstractServiceCreator.java:103)
at org.apache.tapestry5.ioc.internal.util.DelegatingInjectionResources.findResource(DelegatingInjectionResources.java:38)
at org.apache.tapestry5.ioc.internal.util.InternalUtils.calculateInjection(InternalUtils.java:231)
at org.apache.tapestry5.ioc.internal.util.InternalUtils.access$000(InternalUtils.java:50)
at org.apache.tapestry5.ioc.internal.util.InternalUtils$4.invoke(InternalUtils.java:289)
at org.apache.tapestry5.ioc.internal.util.InternalUtils$4.invoke(InternalUtils.java:286)
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:1124)
at org.apache.tapestry5.ioc.internal.util.InternalUtils.calculateParameters(InternalUtils.java:293)
at org.apache.tapestry5.ioc.internal.util.InternalUtils$23.invoke(InternalUtils.java:1488)
at org.apache.tapestry5.ioc.internal.util.InternalUtils$23.invoke(InternalUtils.java:1483)
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:1124)
at org.apache.tapestry5.ioc.internal.util.InternalUtils.createConstructorConstructionPlan(InternalUtils.java:1480)
at org.apache.tapestry5.ioc.internal.ConstructorServiceCreator.getPlan(ConstructorServiceCreator.java:52)
at org.apache.tapestry5.ioc.internal.ConstructorServiceCreator.createObject(ConstructorServiceCreator.java:61)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator$1.invoke(OperationTrackingObjectCreator.java:45)
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:1124)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator.createObject(OperationTrackingObjectCreator.java:49)
at org.apache.tapestry5.ioc.internal.SingletonServiceLifecycle.createService(SingletonServiceLifecycle.java:29)
at org.apache.tapestry5.ioc.internal.LifecycleWrappedServiceCreator.createObject(LifecycleWrappedServiceCreator.java:46)
at org.apache.tapestry5.ioc.internal.RecursiveServiceCreationCheckWrapper.createObject(RecursiveServiceCreationCheckWrapper.java:60)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator$1.invoke(OperationTrackingObjectCreator.java:45)
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:1124)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator.createObject(OperationTrackingObjectCreator.java:49)
at org.apache.tapestry5.ioc.internal.services.JustInTimeObjectCreator.obtainObjectFromCreator(JustInTimeObjectCreator.java:66)
... 85 more
Caused by: java.lang.RuntimeException: Exception constructing service 'MasterObjectProvider': Construction of service 'MasterObjectProvider' has failed due to recursion: the service depends on itself in some way. Please check org.apache.tapestry5.ioc.internal.services.MasterObjectProviderImpl(List, OperationTracker) (at MasterObjectProviderImpl.java:33) via org.apache.tapestry5.ioc.services.TapestryIOCModule.bind(ServiceBinder) (at TapestryIOCModule.java:49) for references to another service that is itself dependent on service 'MasterObjectProvider'.
at org.apache.tapestry5.ioc.internal.services.JustInTimeObjectCreator.obtainObjectFromCreator(JustInTimeObjectCreator.java:75)
at org.apache.tapestry5.ioc.internal.services.JustInTimeObjectCreator.createObject(JustInTimeObjectCreator.java:54)
at $MasterObjectProvider_440ab1f4dbb7.delegate(Unknown Source)
at $MasterObjectProvider_440ab1f4dbb7.provide(Unknown Source)
at org.apache.tapestry5.ioc.internal.RegistryImpl.getObject(RegistryImpl.java:871)
at org.apache.tapestry5.ioc.internal.ObjectLocatorImpl.getObject(ObjectLocatorImpl.java:57)
at org.apache.tapestry5.ioc.internal.util.InternalUtils.calculateInjection(InternalUtils.java:257)
at org.apache.tapestry5.ioc.internal.util.InternalUtils.access$000(InternalUtils.java:50)
at org.apache.tapestry5.ioc.internal.util.InternalUtils$4.invoke(InternalUtils.java:289)
at org.apache.tapestry5.ioc.internal.util.InternalUtils$4.invoke(InternalUtils.java:286)
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:1124)
at org.apache.tapestry5.ioc.internal.util.InternalUtils.calculateParameters(InternalUtils.java:293)
at org.apache.tapestry5.ioc.internal.util.InternalUtils$23.invoke(InternalUtils.java:1488)
at org.apache.tapestry5.ioc.internal.util.InternalUtils$23.invoke(InternalUtils.java:1483)
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:1124)
at org.apache.tapestry5.ioc.internal.util.InternalUtils.createConstructorConstructionPlan(InternalUtils.java:1480)
at org.apache.tapestry5.ioc.internal.ConstructorServiceCreator.getPlan(ConstructorServiceCreator.java:52)
at org.apache.tapestry5.ioc.internal.ConstructorServiceCreator.createObject(ConstructorServiceCreator.java:61)
at org.apache.tapestry5.ioc.internal.ServiceResourcesImpl$4.invoke(ServiceResourcesImpl.java:160)
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:1124)
at org.apache.tapestry5.ioc.internal.ServiceResourcesImpl.autobuild(ServiceResourcesImpl.java:146)
at org.apache.tapestry5.ioc.internal.ServiceResourcesImpl.autobuild(ServiceResourcesImpl.java:170)
at org.apache.tapestry5.ioc.internal.AbstractConfigurationImpl.instantiate(AbstractConfigurationImpl.java:45)
at org.apache.tapestry5.ioc.internal.ValidatingOrderedConfigurationWrapper.addInstance(ValidatingOrderedConfigurationWrapper.java:95)
at com.skycomm.ipkaizen.services.CoreModule.setupDBSYmbolObjectProviders(CoreModule.java:51)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.tapestry5.ioc.internal.ContributionDefImpl.invokeMethod(ContributionDefImpl.java:120)
... 134 more
Caused by: org.apache.tapestry5.ioc.internal.OperationException: Construction of service 'MasterObjectProvider' has failed due to recursion: the service depends on itself in some way. Please check org.apache.tapestry5.ioc.internal.services.MasterObjectProviderImpl(List, OperationTracker) (at MasterObjectProviderImpl.java:33) via org.apache.tapestry5.ioc.services.TapestryIOCModule.bind(ServiceBinder) (at TapestryIOCModule.java:49) for references to another service that is itself dependent on service 'MasterObjectProvider'.
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.logAndRethrow(OperationTrackerImpl.java:121)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:88)
at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87)
at org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1124)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator.createObject(OperationTrackingObjectCreator.java:49)
at org.apache.tapestry5.ioc.internal.services.JustInTimeObjectCreator.obtainObjectFromCreator(JustInTimeObjectCreator.java:66)
... 169 more
Caused by: java.lang.IllegalStateException: Construction of service 'MasterObjectProvider' has failed due to recursion: the service depends on itself in some way. Please check org.apache.tapestry5.ioc.internal.services.MasterObjectProviderImpl(List, OperationTracker) (at MasterObjectProviderImpl.java:33) via org.apache.tapestry5.ioc.services.TapestryIOCModule.bind(ServiceBinder) (at TapestryIOCModule.java:49) for references to another service that is itself dependent on service 'MasterObjectProvider'.
at org.apache.tapestry5.ioc.internal.RecursiveServiceCreationCheckWrapper.createObject(RecursiveServiceCreationCheckWrapper.java:52)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator$1.invoke(OperationTrackingObjectCreator.java:45)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74)
... 173 more
謝謝。