ERROR with emails

[Juan López]

Hi!

In our Dspace we have configurated office 365 as the smtp server, this configuration was working fine last year, but, in 2021 there has been an intermittency with dspace sending emails.

From time to time the platform sends the emails just fine, but in other ocassions Dspace throws this kinds of errors:

Java stacktrace: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141) at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126) at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280) at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:451) at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:323) at sun.security.validator.Validator.validate(Validator.java:271) at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:315) at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:223) at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:129) at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:638) at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(CertificateMessage.java:473) at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(CertificateMessage.java:369) at sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:377) at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:444) at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:422) at sun.security.ssl.TransportContext.dispatch(TransportContext.java:182) at sun.security.ssl.SSLTransport.decode(SSLTransport.java:149) at sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1143) at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1054) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:394) at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:549) at com.sun.mail.util.SocketFetcher.startTLS(SocketFetcher.java:486) at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:1902) at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:666) at javax.mail.Service.connect(Service.java:274) at javax.mail.Service.connect(Service.java:91) at javax.mail.Service.connect(Service.java:76) at javax.mail.Transport.send(Transport.java:94) at javax.mail.Transport.send(Transport.java:48) at org.dspace.core.Email.send(Email.java:360) at org.dspace.app.xmlui.aspect.artifactbrowser.SendItemRequestAction.act(SendItemRequestAction.java:141) at org.apache.cocoon.sitemap.impl.DefaultExecutor.invokeAction(DefaultExecutor.java:55) at org.apache.cocoon.components.treeprocessor.sitemap.ActTypeNode.invoke(ActTypeNode.java:105) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55) at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55) at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55) at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.buildPipeline(ConcreteTreeProcessor.java:186) at org.apache.cocoon.components.treeprocessor.TreeProcessor.buildPipeline(TreeProcessor.java:260) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:107) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.SelectNode.invoke(SelectNode.java:87) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55) at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.buildPipeline(ConcreteTreeProcessor.java:186) at org.apache.cocoon.components.treeprocessor.TreeProcessor.buildPipeline(TreeProcessor.java:260) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:107) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55) at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.buildPipeline(ConcreteTreeProcessor.java:186) at org.apache.cocoon.components.treeprocessor.TreeProcessor.buildPipeline(TreeProcessor.java:260) at org.apache.cocoon.components.source.impl.SitemapSource.init(SitemapSource.java:277) at org.apache.cocoon.components.source.impl.SitemapSource.<init>(SitemapSource.java:148) at org.apache.cocoon.components.source.impl.SitemapSourceFactory.getSource(SitemapSourceFactory.java:62) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183) at org.apache.cocoon.generation.FileGenerator.setup(FileGenerator.java:99) at org.dspace.app.xmlui.cocoon.AspectGenerator.setup(AspectGenerator.java:81) at sun.reflect.GeneratedMethodAccessor216.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy176.setup(Unknown Source) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:343) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:710) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:466) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.prepareInternal(AbstractProcessingPipeline.java:480) at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy174.prepareInternal(Unknown Source) at org.apache.cocoon.components.source.impl.SitemapSource.init(SitemapSource.java:292) at org.apache.cocoon.components.source.impl.SitemapSource.<init>(SitemapSource.java:148) at org.apache.cocoon.components.source.impl.SitemapSourceFactory.getSource(SitemapSourceFactory.java:62) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183) at org.apache.cocoon.generation.FileGenerator.setup(FileGenerator.java:99) at org.dspace.app.xmlui.cocoon.AspectGenerator.setup(AspectGenerator.java:81) at sun.reflect.GeneratedMethodAccessor216.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy176.setup(Unknown Source) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:343) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:710) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:466) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.prepareInternal(AbstractProcessingPipeline.java:480) at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy174.prepareInternal(Unknown Source) at org.apache.cocoon.components.source.impl.SitemapSource.init(SitemapSource.java:292) at org.apache.cocoon.components.source.impl.SitemapSource.<init>(SitemapSource.java:148) at org.apache.cocoon.components.source.impl.SitemapSourceFactory.getSource(SitemapSourceFactory.java:62) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183) at org.apache.cocoon.generation.FileGenerator.setup(FileGenerator.java:99) at org.dspace.app.xmlui.cocoon.AspectGenerator.setup(AspectGenerator.java:81) at sun.reflect.GeneratedMethodAccessor216.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy176.setup(Unknown Source) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:343) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:710) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:466) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.prepareInternal(AbstractProcessingPipeline.java:480) at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy174.prepareInternal(Unknown Source) at org.apache.cocoon.components.source.impl.SitemapSource.init(SitemapSource.java:292) at org.apache.cocoon.components.source.impl.SitemapSource.<init>(SitemapSource.java:148) at org.apache.cocoon.components.source.impl.SitemapSourceFactory.getSource(SitemapSourceFactory.java:62) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183) at org.apache.cocoon.generation.FileGenerator.setup(FileGenerator.java:99) at org.dspace.app.xmlui.cocoon.AspectGenerator.setup(AspectGenerator.java:81) at sun.reflect.GeneratedMethodAccessor216.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy176.setup(Unknown Source) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:343) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:710) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:466) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.prepareInternal(AbstractProcessingPipeline.java:480) at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy174.prepareInternal(Unknown Source) at org.apache.cocoon.components.source.impl.SitemapSource.init(SitemapSource.java:292) at org.apache.cocoon.components.source.impl.SitemapSource.<init>(SitemapSource.java:148) at org.apache.cocoon.components.source.impl.SitemapSourceFactory.getSource(SitemapSourceFactory.java:62) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183) at org.apache.cocoon.generation.FileGenerator.setup(FileGenerator.java:99) at org.dspace.app.xmlui.cocoon.AspectGenerator.setup(AspectGenerator.java:81) at sun.reflect.GeneratedMethodAccessor216.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy176.setup(Unknown Source) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:343) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:710) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:466) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.prepareInternal(AbstractProcessingPipeline.java:480) at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy174.prepareInternal(Unknown Source) at org.apache.cocoon.components.source.impl.SitemapSource.init(SitemapSource.java:292) at org.apache.cocoon.components.source.impl.SitemapSource.<init>(SitemapSource.java:148) at org.apache.cocoon.components.source.impl.SitemapSourceFactory.getSource(SitemapSourceFactory.java:62) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183) at org.apache.cocoon.generation.FileGenerator.setup(FileGenerator.java:99) at org.dspace.app.xmlui.cocoon.AspectGenerator.setup(AspectGenerator.java:81) at sun.reflect.GeneratedMethodAccessor216.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy176.setup(Unknown Source) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:343) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:710) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:466) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.prepareInternal(AbstractProcessingPipeline.java:480) at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy174.prepareInternal(Unknown Source) at org.apache.cocoon.components.source.impl.SitemapSource.init(SitemapSource.java:292) at org.apache.cocoon.components.source.impl.SitemapSource.<init>(SitemapSource.java:148) at org.apache.cocoon.components.source.impl.SitemapSourceFactory.getSource(SitemapSourceFactory.java:62) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183) at org.apache.cocoon.generation.FileGenerator.setup(FileGenerator.java:99) at org.dspace.app.xmlui.cocoon.AspectGenerator.setup(AspectGenerator.java:81) at sun.reflect.GeneratedMethodAccessor216.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy176.setup(Unknown Source) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:343) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:710) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:466) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.prepareInternal(AbstractProcessingPipeline.java:480) at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy174.prepareInternal(Unknown Source) at org.apache.cocoon.components.source.impl.SitemapSource.init(SitemapSource.java:292) at org.apache.cocoon.components.source.impl.SitemapSource.<init>(SitemapSource.java:148) at org.apache.cocoon.components.source.impl.SitemapSourceFactory.getSource(SitemapSourceFactory.java:62) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183) at org.apache.cocoon.generation.FileGenerator.setup(FileGenerator.java:99) at org.dspace.app.xmlui.cocoon.AspectGenerator.setup(AspectGenerator.java:81) at sun.reflect.GeneratedMethodAccessor216.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy176.setup(Unknown Source) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:343) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:710) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:466) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.prepareInternal(AbstractProcessingPipeline.java:480) at sun.reflect.GeneratedMethodAccessor240.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy174.prepareInternal(Unknown Source) at org.apache.cocoon.components.source.impl.SitemapSource.init(SitemapSource.java:292) at org.apache.cocoon.components.source.impl.SitemapSource.<init>(SitemapSource.java:148) at org.apache.cocoon.components.source.impl.SitemapSourceFactory.getSource(SitemapSourceFactory.java:62) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183) at org.apache.cocoon.generation.FileGenerator.setup(FileGenerator.java:99) at sun.reflect.GeneratedMethodAccessor216.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy176.setup(Unknown Source) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:343) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:710) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:466) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:411) at sun.reflect.GeneratedMethodAccessor203.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy174.process(Unknown Source) at org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:147) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55) at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:171) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:247) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:117) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55) at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:171) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:247) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:117) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:171) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:247) at org.apache.cocoon.servlet.RequestProcessor.process(RequestProcessor.java:351) at org.apache.cocoon.servlet.RequestProcessor.service(RequestProcessor.java:169) at org.apache.cocoon.sitemap.SitemapServlet.service(SitemapServlet.java:84) at XXXXXXXXXXXXX.http.HttpServlet.service(HttpServlet.java:733) at org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:468) at org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:443) at org.apache.cocoon.servletservice.spring.ServletFactoryBean$ServiceInterceptor.invoke(ServletFactoryBean.java:264) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) at com.sun.proxy.$Proxy166.service(Unknown Source) at org.dspace.springmvc.CocoonView.render(CocoonView.java:113) at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1216) at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1001) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:945) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:867) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:951) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:853) at XXXXXXXXXXXXX.http.HttpServlet.service(HttpServlet.java:652) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:827) at XXXXXXXXXXXXX.http.HttpServlet.service(HttpServlet.java:733) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.dspace.app.xmlui.cocoon.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:113) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.dspace.app.xmlui.cocoon.DSpaceCocoonServletFilter.doFilter(DSpaceCocoonServletFilter.java:160) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.dspace.app.xmlui.cocoon.servlet.multipart.DSpaceMultipartFilter.doFilter(DSpaceMultipartFilter.java:119) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.dspace.rdf.negotiation.NegotiationFilter.doFilter(NegotiationFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:432) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748)  

We checked our web application firewall and it's nmot showing any errors or bloqued petitions from our dspace.

Can you guys help us? what could be the issue?

Best regards,

Juan 

[Mark H. Wood]

On Thu, Mar 04, 2021 at 07:32:18AM -0800, Juan López wrote:
> In our Dspace we have configurated office 365 as the smtp server, this
> configuration was working fine last year, but, in 2021 there has been an
> intermittency with dspace sending emails.
>
> From time to time the platform sends the emails just fine, but in other
> ocassions Dspace throws this kinds of errors:
>
> Java stacktrace: sun.security.provider.certpath.SunCertPathBuilderException:
> unable to find valid certification path to requested target at
> sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141)

"Unable to find valid certification path" means that an SSL/TLS
certificate could not be validated because there was no chain of
validations from that certificate to one that your system has been
told to trust.

DSpace was trying to connect securely to the SMTP server, and the SMTP
server presented its certificate, but the root certificate authority
which ultimately certifies the SMTP server's identity is not listed in
your trust store. That is: there is no self-signed certificate from
the root CA in your trust store.

It seems likely that Microsoft have either added new SMTP servers
which use certificates from a newer CA, or have replaced expiring
certificates with new ones from a newer CA.

You need to ensure that your trust store contains all of the root CA
certificates that will be needed to validate certificates from
Office365 SMTP servers. I haven't dealt with Office365, so I don't
know the best way to get the list of needed roots.

Once you have any missing CA certificates, and determined that you
trust them, you need to add them to the trust store. This could vary
from one Java implementation to another and from one OS distribution
to another. The trust store for OpenJDK (and probably for Oracle JDK)
is under the JDK's home directory at 'jre/lib/security/cacerts'.
OpenJDK uses the traditional JKS KeyStore format for the trust store,
so you'd use 'keytool' to add certificates. It's probably best to
consult your distribution's documentation for details.

Now that I've made it sound complicated, it is possible that you just
need to update your JDK to the distribution's latest patchlevel.

--
Mark H. Wood
Lead Technology Analyst

University Library
Indiana University - Purdue University Indianapolis
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