我遇到了在本地运行网络应用程序时遇到的问题，特别是在将它部署到tomcat时。我知道有很多人发布了信息，但遗憾的是没有一个对我有帮助。但是，tomcat的版本是否与guice问题有关？因为我们使用一个不同版本的tomcat，用于远程部署我们在本地使用的Web应用程序。具体来说，我尝试在本地部署时收到此错误：
自定义提供程序出错。
如果有人有兴趣帮助我，我可以提供详细信息。但是现在我需要知道tomcat版本是否是罪魁祸首。
感谢， Mukhtar Farid
这是堆栈跟踪：
108) Error in custom provider, java.lang.NullPointerException
at org.eframeworks.layers.infrastructure.persistence.PersistenceModule.internalConfigure(PersistenceModule.java:357)
while locating org.eframeworks.layers.infrastructure.factory.FactoryConfiguration
for parameter 1 at org.eframeworks.layers.infrastructure.factory.GuicedObjectFactory.<init>(GuicedObjectFactory.java:49)
at org.eframeworks.layers.infrastructure.factory.GuicedObjectFactory.class(GuicedObjectFactory.java:49)
while locating org.eframeworks.layers.infrastructure.factory.GuicedObjectFactory
at org.eframeworks.layers.infrastructure.persistence.PersistenceModule.internalConfigure(PersistenceModule.java:390)
while locating org.apache.ibatis.reflection.factory.ObjectFactory
for field at org.eframeworks.layers.infrastructure.persistence.ConfigurationProvider.objectFactory(ConfigurationProvider.java:236)
at org.eframeworks.layers.infrastructure.persistence.ConfigurationProvider.class(ConfigurationProvider.java:43)
while locating org.eframeworks.layers.infrastructure.persistence.ConfigurationProvider
at org.eframeworks.layers.infrastructure.persistence.PersistenceModule.internalConfigure(PersistenceModule.java:382)
while locating org.apache.ibatis.session.Configuration
for parameter 0 at org.mybatis.guice.session.SqlSessionFactoryProvider.createNewSqlSessionFactory(SqlSessionFactoryProvider.java:64)
at org.mybatis.guice.session.SqlSessionFactoryProvider.class(SqlSessionFactoryProvider.java:31)
while locating org.mybatis.guice.session.SqlSessionFactoryProvider
at org.eframeworks.layers.infrastructure.persistence.PersistenceModule.internalConfigure(PersistenceModule.java:385)
while locating org.apache.ibatis.session.SqlSessionFactory
for parameter 0 at org.mybatis.guice.session.SqlSessionManagerProvider.createNewSqlSessionManager(SqlSessionManagerProvider.java:55)
at org.mybatis.guice.session.SqlSessionManagerProvider.class(SqlSessionManagerProvider.java:31)
while locating org.mybatis.guice.session.SqlSessionManagerProvider
at org.eframeworks.layers.infrastructure.persistence.PersistenceModule.configure(PersistenceModule.java:187)
while locating org.apache.ibatis.session.SqlSessionManager
for field at org.mybatis.guice.mappers.MapperProvider.sqlSessionManager(MapperProvider.java:40)
while locating org.mybatis.guice.mappers.MapperProvider
at com.google.inject.util.Providers$3.initialize(Providers.java:101)
at org.eframeworks.layers.infrastructure.persistence.PersistenceModule.bindMapper(PersistenceModule.java:213)
Caused by: java.lang.NullPointerException
at com.google.inject.internal.Initializer$InjectableReference.get(Initializer.java:147)
at com.google.inject.internal.ConstantFactory.get(ConstantFactory.java:35)
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1031)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.Scopes$1$1.get(Scopes.java:65)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:40)
at com.google.inject.internal.SingleParameterInjector.inject(SingleParameterInjector.java:38)
at com.google.inject.internal.SingleParameterInjector.getAll(SingleParameterInjector.java:62)
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:84)
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:254)
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1031)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.Scopes$1$1.get(Scopes.java:65)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:40)
at com.google.inject.internal.FactoryProxy.get(FactoryProxy.java:54)
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1031)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.Scopes$1$1.get(Scopes.java:65)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:40)
at com.google.inject.internal.SingleFieldInjector.inject(SingleFieldInjector.java:53)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:110)
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:94)
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:254)
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1031)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.Scopes$1$1.get(Scopes.java:65)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:40)
at com.google.inject.internal.BoundProviderFactory.get(BoundProviderFactory.java:53)
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1031)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.Scopes$1$1.get(Scopes.java:65)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:40)
at com.google.inject.internal.SingleParameterInjector.inject(SingleParameterInjector.java:38)
at com.google.inject.internal.SingleParameterInjector.getAll(SingleParameterInjector.java:62)
at com.google.inject.internal.SingleMethodInjector.inject(SingleMethodInjector.java:83)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:110)
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:94)
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:254)
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1031)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.Scopes$1$1.get(Scopes.java:65)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:40)
at com.google.inject.internal.BoundProviderFactory.get(BoundProviderFactory.java:53)
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1031)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.Scopes$1$1.get(Scopes.java:65)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:40)
at com.google.inject.internal.SingleParameterInjector.inject(SingleParameterInjector.java:38)
at com.google.inject.internal.SingleParameterInjector.getAll(SingleParameterInjector.java:62)
at com.google.inject.internal.SingleMethodInjector.inject(SingleMethodInjector.java:83)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:110)
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:94)
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:254)
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1031)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.Scopes$1$1.get(Scopes.java:65)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:40)
at com.google.inject.internal.BoundProviderFactory.get(BoundProviderFactory.java:53)
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1031)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.Scopes$1$1.get(Scopes.java:65)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:40)
at com.google.inject.internal.SingleFieldInjector.inject(SingleFieldInjector.java:53)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:110)
at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:75)
at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:73)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1031)
at com.google.inject.internal.MembersInjectorImpl.injectAndNotify(MembersInjectorImpl.java:73)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:60)
at com.google.inject.internal.InjectorImpl.injectMembers(InjectorImpl.java:944)
at com.google.inject.util.Providers$3.initialize(Providers.java:101)
at com.google.inject.util.Providers$3$$FastClassByGuice$$14d1a0ba.invoke(<generated>)
at com.google.inject.internal.cglib.reflect.$FastMethod.invoke(FastMethod.java:53)
at com.google.inject.internal.SingleMethodInjector$1.invoke(SingleMethodInjector.java:56)
at com.google.inject.internal.SingleMethodInjector.inject(SingleMethodInjector.java:90)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:110)
at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:75)
at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:73)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1024)
at com.google.inject.internal.MembersInjectorImpl.injectAndNotify(MembersInjectorImpl.java:73)
at com.google.inject.internal.Initializer$InjectableReference.get(Initializer.java:147)
at com.google.inject.internal.Initializer.injectAll(Initializer.java:92)
at com.google.inject.internal.InternalInjectorCreator.injectDynamically(InternalInjectorCreator.java:173)
at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:109)
at com.google.inject.Guice.createInjector(Guice.java:95)
at com.google.inject.Guice.createInjector(Guice.java:72)
at org.eframeworks.layers.controller.webapp.WebAppListener.getInjector(WebAppListener.java:86)
at com.google.inject.servlet.GuiceServletContextListener.contextInitialized(GuiceServletContextListener.java:45)
at org.eframeworks.layers.controller.webapp.WebAppListener.contextInitialized(WebAppListener.java:128)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4701)
at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5204)
at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5199)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)
现在我对Guice并不熟悉，但我知道一些Java ......并且看到这个错误，这个异常显然是由于指定了一个空指针而产生的。但是我想知道我是不是只使用了旧版本Guice ...或者是一个无关的解决方案。对此事的任何帮助将不胜感激:)！ 干杯， Mukhtar Farid
答案 0 :(得分：1)
此堆栈跟踪看起来像this Guice bug，由this commit修复。不幸的是，自那时起Guice还没有稳定发布，但是如果你可以使用4.0测试版，那就试试吧。如果您需要帮助解决问题，也可以对错误here发表评论;我不太了解触发它的条件。