我已经将我在Wildfly 10中的Jaybird依赖从Jaybird 2.2.11升级到Jaybird 3.0.0-alpha-1。当我尝试创建连接时，我现在得到以下异常:
启动后的第一个连接(在管理控制台中测试时):
2016-08-27 10:50:45,354 WARN [org.jboss.jca.core.connectionmanager.pool.strategy.OnePool] (External Management Request Threads -- 2) IJ000604: Throwable while attempting to get a new connection: null: javax.resource.ResourceException: IJ031084: Unable to create connection
at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createLocalManagedConnection(LocalManagedConnectionFactory.java:345)
at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.getLocalManagedConnection(LocalManagedConnectionFactory.java:352)
at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:287)
at org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreConcurrentLinkedDequeManagedConnectionPool.createConnectionEventListener(SemaphoreConcurrentLinkedDequeManagedConnectionPool.java:1320)
at org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreConcurrentLinkedDequeManagedConnectionPool.getConnection(SemaphoreConcurrentLinkedDequeManagedConnectionPool.java:496)
at org.jboss.jca.core.connectionmanager.pool.AbstractPool.internalTestConnection(AbstractPool.java:1052)
at org.jboss.jca.core.connectionmanager.pool.strategy.OnePool.testConnection(OnePool.java:93)
at org.jboss.as.connector.subsystems.common.pool.PoolOperations$TestConnectionInPool.invokeCommandOn(PoolOperations.java:234)
at org.jboss.as.connector.subsystems.common.pool.PoolOperations$1.execute(PoolOperations.java:90)
at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:890)
at org.jboss.as.controller.AbstractOperationContext.processStages(AbstractOperationContext.java:659)
at org.jboss.as.controller.AbstractOperationContext.executeOperation(AbstractOperationContext.java:370)
at org.jboss.as.controller.OperationContextImpl.executeOperation(OperationContextImpl.java:1329)
at org.jboss.as.controller.ModelControllerImpl.internalExecute(ModelControllerImpl.java:400)
at org.jboss.as.controller.ModelControllerImpl.execute(ModelControllerImpl.java:222)
at org.jboss.as.domain.http.server.DomainApiHandler.handleRequest(DomainApiHandler.java:219)
at io.undertow.server.handlers.encoding.EncodingHandler.handleRequest(EncodingHandler.java:72)
at org.jboss.as.domain.http.server.security.SubjectDoAsHandler$1.run(SubjectDoAsHandler.java:72)
at org.jboss.as.domain.http.server.security.SubjectDoAsHandler$1.run(SubjectDoAsHandler.java:68)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.jboss.as.controller.AccessAuditContext.doAs(AccessAuditContext.java:149)
at org.jboss.as.domain.http.server.security.SubjectDoAsHandler.handleRequest(SubjectDoAsHandler.java:68)
at org.jboss.as.domain.http.server.security.SubjectDoAsHandler.handleRequest(SubjectDoAsHandler.java:63)
at io.undertow.server.handlers.BlockingHandler.handleRequest(BlockingHandler.java:56)
at org.jboss.as.domain.http.server.DomainApiCheckHandler.handleRequest(DomainApiCheckHandler.java:95)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:805)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: java.util.ServiceConfigurationError: org.firebirdsql.encodings.EncodingSet: Provider org.firebirdsql.encodings.DefaultEncodingSet could not be instantiated
at java.util.ServiceLoader.fail(ServiceLoader.java:232)
at java.util.ServiceLoader.access$100(ServiceLoader.java:185)
at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:384)
at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404)
at java.util.ServiceLoader$1.next(ServiceLoader.java:480)
at org.firebirdsql.encodings.EncodingFactory.loadEncodingSets(EncodingFactory.java:318)
at org.firebirdsql.encodings.EncodingFactory.createInstance(EncodingFactory.java:474)
at org.firebirdsql.encodings.EncodingFactory.access$000(EncodingFactory.java:36)
at org.firebirdsql.encodings.EncodingFactory$DefaultEncodingFactory.<clinit>(EncodingFactory.java:59)
at org.firebirdsql.encodings.EncodingFactory.getPlatformDefault(EncodingFactory.java:428)
at org.firebirdsql.jdbc.FBDriverPropertyManager.handleEncodings(FBDriverPropertyManager.java:241)
at org.firebirdsql.jdbc.FBDriverPropertyManager.normalize(FBDriverPropertyManager.java:208)
at org.firebirdsql.jdbc.FBDriver.connect(FBDriver.java:116)
at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createLocalManagedConnection(LocalManagedConnectionFactory.java:321)
... 31 more
Caused by: java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)
at java.lang.Class.getConstructor0(Class.java:3075)
at java.lang.Class.newInstance(Class.java:412)
at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:380)
... 42 more
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.JAXBException from [Module "org.firebirdsql:main" from local module loader @1c2c22f3 (finder: local module finder @18e8568 (roots: D:DevSoftwildfly-10.1.0.Finalmodules,D:DevSoftwildfly-10.1.0.Finalmodulessystemlayersbase))]
at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:198)
at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:363)
at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:351)
at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:93)
... 47 more
测试连接的后续尝试:
2016-08-27 10:50:52,349 WARN [org.jboss.jca.core.connectionmanager.pool.strategy.OnePool] (External Management Request Threads -- 4) IJ000604: Throwable while attempting to get a new connection: null: javax.resource.ResourceException: IJ031084: Unable to create connection
at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createLocalManagedConnection(LocalManagedConnectionFactory.java:345)
at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.getLocalManagedConnection(LocalManagedConnectionFactory.java:352)
at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:287)
at org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreConcurrentLinkedDequeManagedConnectionPool.createConnectionEventListener(SemaphoreConcurrentLinkedDequeManagedConnectionPool.java:1320)
at org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreConcurrentLinkedDequeManagedConnectionPool.getConnection(SemaphoreConcurrentLinkedDequeManagedConnectionPool.java:496)
at org.jboss.jca.core.connectionmanager.pool.AbstractPool.internalTestConnection(AbstractPool.java:1052)
at org.jboss.jca.core.connectionmanager.pool.strategy.OnePool.testConnection(OnePool.java:93)
at org.jboss.as.connector.subsystems.common.pool.PoolOperations$TestConnectionInPool.invokeCommandOn(PoolOperations.java:234)
at org.jboss.as.connector.subsystems.common.pool.PoolOperations$1.execute(PoolOperations.java:90)
at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:890)
at org.jboss.as.controller.AbstractOperationContext.processStages(AbstractOperationContext.java:659)
at org.jboss.as.controller.AbstractOperationContext.executeOperation(AbstractOperationContext.java:370)
at org.jboss.as.controller.OperationContextImpl.executeOperation(OperationContextImpl.java:1329)
at org.jboss.as.controller.ModelControllerImpl.internalExecute(ModelControllerImpl.java:400)
at org.jboss.as.controller.ModelControllerImpl.execute(ModelControllerImpl.java:222)
at org.jboss.as.domain.http.server.DomainApiHandler.handleRequest(DomainApiHandler.java:219)
at io.undertow.server.handlers.encoding.EncodingHandler.handleRequest(EncodingHandler.java:72)
at org.jboss.as.domain.http.server.security.SubjectDoAsHandler$1.run(SubjectDoAsHandler.java:72)
at org.jboss.as.domain.http.server.security.SubjectDoAsHandler$1.run(SubjectDoAsHandler.java:68)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.jboss.as.controller.AccessAuditContext.doAs(AccessAuditContext.java:149)
at org.jboss.as.domain.http.server.security.SubjectDoAsHandler.handleRequest(SubjectDoAsHandler.java:68)
at org.jboss.as.domain.http.server.security.SubjectDoAsHandler.handleRequest(SubjectDoAsHandler.java:63)
at io.undertow.server.handlers.BlockingHandler.handleRequest(BlockingHandler.java:56)
at org.jboss.as.domain.http.server.DomainApiCheckHandler.handleRequest(DomainApiCheckHandler.java:95)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:805)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.firebirdsql.encodings.EncodingFactory$DefaultEncodingFactory
at org.firebirdsql.encodings.EncodingFactory.getPlatformDefault(EncodingFactory.java:428)
at org.firebirdsql.jdbc.FBDriverPropertyManager.handleEncodings(FBDriverPropertyManager.java:241)
at org.firebirdsql.jdbc.FBDriverPropertyManager.normalize(FBDriverPropertyManager.java:208)
at org.firebirdsql.jdbc.FBDriver.connect(FBDriver.java:116)
at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createLocalManagedConnection(LocalManagedConnectionFactory.java:321)
... 31 more
我使用以下module.xml作为Jaybird驱动程序:
<?xml version="1.0" encoding="UTF-8"?>
<module xmlns="urn:jboss:module:1.0" name="org.firebirdsql">
<resources>
<resource-root path="jaybird-3.0.0-alpha-1.jar"/>
</resources>
<dependencies>
<module name="javax.api"/>
<module name="javax.transaction.api"/>
<module name="javax.resource.api"/>
</dependencies>
</module>
是什么原因导致的，我该如何解决它?
注意:这个问题/答案来源于bug报告JDBC-449在问题发生时，Jaybird 3的测试版本也依赖于javax.xml.bind中的类，如java.lang.ClassNotFoundException: javax.xml.bind.JAXBException所示。此异常导致编码定义的加载失败，从而导致org.firebirdsql.encodings.EncodingFactory$DefaultEncodingFactory的加载失败。因此，无法建立任何连接。
后续尝试的异常是由于无法加载EncodingFactory$DefaultEncodingFactory导致的。
注意:对javax.xml.bind的依赖在最终的Jaybird 3.0.0版本中已经被删除，所以下面的解决方案在Jaybird 3和更高版本的最终版本中是不需要的(参见下面的Jaybird 3.0.4和更高版本的注意事项)。
解决方案是在Jaybird模块的依赖项中添加对javax.xml.bind.api的依赖项:
<?xml version="1.0" encoding="UTF-8"?>
<module xmlns="urn:jboss:module:1.0" name="org.firebirdsql">
<resources>
<resource-root path="jaybird-3.0.0-alpha-1.jar"/>
</resources>
<dependencies>
<module name="javax.api"/>
<module name="javax.transaction.api"/>
<module name="javax.resource.api"/>
<module name="javax.xml.bind.api"/> <!-- Add this -->
</dependencies>
</module>
对于Jaybird 3.0.4及更高版本的注意事项
Java 7的Jaybird 3.0.4只是重新引入了对JAXB的依赖。如果可能，请切换到Java 8版本的Jaybird，否则应用此解决方案。