我有一个发送邮件的Web应用程序。要执行发送邮件，我使用基于Apache Commons Email 1.4的库。当我使用Websphere Liberty 8.5.5.7时，一切正常，但是升级到8.5.5.9后，它停止工作并抛出异常：javax.mail.NoSuchProviderException我在问题末尾发布的完整堆栈跟踪。
同样，我尝试在Websphere Liberty 8.5.5.7和8.5.5.9的两个安装上都运行它，在第一个安装上它运行良好，第二个损坏了。我试图查看有什么区别，并且看起来Liberty本身具有com.ibm.ws.javax.mail-1.5_1.5.xx.jar包，该包会干扰javax-mail-1.5.2使用的Java commons-email 1.4，请在此处查看其pom.xml。
经过一些调试后，我注意到了：
Liberty 8.5.5.9使用com.ibm.ws.javax.mail-1.5_1.5.12.jar，而Liberty 8.5.5.7使用com.ibm.ws.javax.mail-1.5_1.5.10.jar可能是由于我的错误引起的。
因此，我的问题是如何消除自由带来的com.ibm.ws.javax.mail影响，还是要有其他解决方法？
另外，在哪里可以为Liberty Team提交错误报告？
更新：
看起来Liberty具有可以启用或禁用的JavaMail 1.5 feature，我没有显式启用它，它看起来在我的某些功能上隐式启用了它，这是我的功能列表：
<featureManager>
<feature>jdbc-4.1</feature>
<feature>adminCenter-1.0</feature>
<feature>jndi-1.0</feature>
<feature>localConnector-1.0</feature>
<feature>servlet-3.1</feature>
<feature>ssl-1.0</feature>
<feature>jaxrs-2.0</feature>
<feature>cdi-1.2</feature>
<feature>ejbLite-3.2</feature>
<feature>jsf-2.2</feature>
</featureManager>
更新2
我已经通过使用这篇文章解决了这个问题：Overriding a provided API with an alternative version
只需在server.xml中进行以下更改：
<application id="" name="Scholar" type="ear" location="scholar.ear">
<classloader delegation="parentLast" />
</application>
现在，您的库将比Liberty的库具有更高的优先级。
异常的完整堆栈跟踪：
org.apache.commons.mail.EmailException: Sending the email to the following server failed : relay.******.com:25
at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1421) ~[commons-email-1.4.jar:1.4]
at org.apache.commons.mail.Email.send(Email.java:1448) ~[commons-email-1.4.jar:1.4]
at my.package.mailer.sendHtmlMail(IBMMail.java:96) ~[classes/:?]
at my.package.mailer.EmailGateway.sendMail(EmailGateway.java:24) [classes/:?]
at my.package.mailer.EventMailGateway.eventCreatedNotification(EventMailGateway.java:52) [classes/:?]
at **********.restful.EventsAPI.saveEvent(EventsAPI.java:99) [classes/:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_45]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_45]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_45]
at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_45]
at com.ibm.ws.jaxrs20.server.LibertyJaxRsServerFactoryBean.performInvocation(LibertyJaxRsServerFactoryBean.java:636) [com.ibm.ws.jaxrs-2.0.server_1.0.12.jar:?]
at com.ibm.ws.jaxrs20.server.LibertyJaxRsInvoker.performInvocation(LibertyJaxRsInvoker.java:115) [com.ibm.ws.jaxrs-2.0.server_1.0.12.jar:?]
at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:97) [cxf-core-3.0.3.jar:3.0.3]
at com.ibm.ws.jaxrs20.server.LibertyJaxRsInvoker.invoke(LibertyJaxRsInvoker.java:210) [com.ibm.ws.jaxrs-2.0.server_1.0.12.jar:?]
at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:200) [cxf-rt-frontend-jaxrs-3.0.3.jar:3.0.3]
at com.ibm.ws.jaxrs20.server.LibertyJaxRsInvoker.invoke(LibertyJaxRsInvoker.java:381) [com.ibm.ws.jaxrs-2.0.server_1.0.12.jar:?]
at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:99) [cxf-rt-frontend-jaxrs-3.0.3.jar:3.0.3]
at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:59) [cxf-core-3.0.3.jar:3.0.3]
at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:96) [cxf-core-3.0.3.jar:3.0.3]
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307) [cxf-core-3.0.3.jar:3.0.3]
at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:124) [com.ibm.ws.jaxrs-2.0.common_1.0.12.jar:3.0.3]
at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:256) [cxf-rt-transports-http-3.0.3.jar:3.0.3]
at com.ibm.ws.jaxrs20.endpoint.AbstractJaxRsWebEndpoint.invoke(AbstractJaxRsWebEndpoint.java:134) [com.ibm.ws.jaxrs-2.0.common_1.0.12.jar:?]
at com.ibm.websphere.jaxrs.server.IBMRestServlet.handleRequest(IBMRestServlet.java:149) [com.ibm.ws.jaxrs-2.0.server_1.0.12.jar:?]
at com.ibm.websphere.jaxrs.server.IBMRestServlet.doPost(IBMRestServlet.java:107) [com.ibm.ws.jaxrs-2.0.server_1.0.12.jar:?]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) [com.ibm.ws.javaee.servlet.3.1_1.0.12.jar:?]
at com.ibm.websphere.jaxrs.server.IBMRestServlet.service(IBMRestServlet.java:99) [com.ibm.ws.jaxrs-2.0.server_1.0.12.jar:?]
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1290) [com.ibm.ws.webcontainer_1.1.12.jar:?]
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:778) [com.ibm.ws.webcontainer_1.1.12.jar:?]
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:475) [com.ibm.ws.webcontainer_1.1.12.jar:?]
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1161) [com.ibm.ws.webcontainer_1.1.12.jar:?]
at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:82) [com.ibm.ws.webcontainer_1.1.12.jar:?]
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:928) [com.ibm.ws.webcontainer_1.1.12.jar:?]
at com.ibm.ws.webcontainer.osgi.DynamicVirtualHost$2.run(DynamicVirtualHost.java:262) [com.ibm.ws.webcontainer_1.1.12.jar:?]
at com.ibm.ws.http.dispatcher.internal.channel.HttpDispatcherLink$TaskWrapper.run(HttpDispatcherLink.java:955) [com.ibm.ws.transport.http_1.0.12.jar:?]
at com.ibm.ws.http.dispatcher.internal.channel.HttpDispatcherLink.ready(HttpDispatcherLink.java:341) [com.ibm.ws.transport.http_1.0.12.jar:?]
at com.ibm.ws.http.channel.internal.inbound.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:471) [com.ibm.ws.transport.http_1.0.12.jar:?]
at com.ibm.ws.http.channel.internal.inbound.HttpInboundLink.handleNewRequest(HttpInboundLink.java:405) [com.ibm.ws.transport.http_1.0.12.jar:?]
at com.ibm.ws.http.channel.internal.inbound.HttpInboundLink.processRequest(HttpInboundLink.java:285) [com.ibm.ws.transport.http_1.0.12.jar:?]
at com.ibm.ws.http.channel.internal.inbound.HttpInboundLink.ready(HttpInboundLink.java:256) [com.ibm.ws.transport.http_1.0.12.jar:?]
at com.ibm.ws.tcpchannel.internal.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:174) [com.ibm.ws.channelfw_1.0.12.jar:?]
at com.ibm.ws.tcpchannel.internal.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:83) [com.ibm.ws.channelfw_1.0.12.jar:?]
at com.ibm.ws.tcpchannel.internal.WorkQueueManager.requestComplete(WorkQueueManager.java:504) [com.ibm.ws.channelfw_1.0.12.jar:?]
at com.ibm.ws.tcpchannel.internal.WorkQueueManager.attemptIO(WorkQueueManager.java:574) [com.ibm.ws.channelfw_1.0.12.jar:?]
at com.ibm.ws.tcpchannel.internal.WorkQueueManager.workerRun(WorkQueueManager.java:929) [com.ibm.ws.channelfw_1.0.12.jar:?]
at com.ibm.ws.tcpchannel.internal.WorkQueueManager$Worker.run(WorkQueueManager.java:1018) [com.ibm.ws.channelfw_1.0.12.jar:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_45]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_45]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_45]
Caused by: javax.mail.NoSuchProviderException: smtp
at javax.mail.Session.getService(Session.java:820) ~[javax.mail-1.5.2.jar:1.5.2]
at javax.mail.Session.getTransport(Session.java:742) ~[javax.mail-1.5.2.jar:1.5.2]
at javax.mail.Session.getTransport(Session.java:682) ~[javax.mail-1.5.2.jar:1.5.2]
at javax.mail.Session.getTransport(Session.java:662) ~[javax.mail-1.5.2.jar:1.5.2]
at javax.mail.Session.getTransport(Session.java:719) ~[javax.mail-1.5.2.jar:1.5.2]
at javax.mail.Transport.send0(Transport.java:248) ~[javax.mail-1.5.2.jar:1.5.2]
at javax.mail.Transport.send(Transport.java:124) ~[javax.mail-1.5.2.jar:1.5.2]
at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1411) ~[commons-email-1.4.jar:1.4]
... 48 more
最佳答案
我已经通过使用这篇文章解决了这个问题：Overriding a provided API with an alternative version
只需在server.xml中进行以下更改：
<application id="" name="Scholar" type="ear" location="scholar.ear">
<classloader delegation="parentLast" />
</application>
现在，您的库将比Liberty的库具有更高的优先级。
关于java - javax.mail.NoSuchProviderException:与Apache Commons Email 1.4一起使用Liberty 8.5.5.9时，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/36130671/