I am trying to integrate Jira (V7.1.8) with confluence (6.4.3) through Application links but getting error as below in Jira UI.
No response was received from the URL you entered - it may not be valid. Please fix the URL below, if needed, and click Continue
Also see below errors in Jira server logs.
2019-02-14 11:05:06,152 http-nio-8080-exec-151 ERROR xxxxxx 665x4960444x1 khualx 10.67.200.249 /rest/applinks/3.0/applicationlinkForm/manifest.json [c.a.a.c.rest.ui.CreateApplicationLinkUIResource] ManifestNotFoundException thrown while retrieving manifest
com.atlassian.applinks.spi.manifest.ManifestNotFoundException: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at com.atlassian.applinks.core.manifest.AppLinksManifestDownloader.doDownload(AppLinksManifestDownloader.java:236)
at com.atlassian.applinks.core.manifest.AppLinksManifestDownloader.access$000(AppLinksManifestDownloader.java:50)
at com.atlassian.applinks.core.manifest.AppLinksManifestDownloader$1$1.<init>(AppLinksManifestDownloader.java:139)
at com.atlassian.applinks.core.manifest.AppLinksManifestDownloader$1.load(AppLinksManifestDownloader.java:132)
at com.atlassian.applinks.core.manifest.AppLinksManifestDownloader$1.load(AppLinksManifestDownloader.java:128)
at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3527)
at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2319)
at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2282)
at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2197)
at com.google.common.cache.LocalCache.get(LocalCache.java:3937)
at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941)
at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824)
at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4830)
at com.atlassian.applinks.core.manifest.AppLinksManifestDownloader.downloadInternal(AppLinksManifestDownloader.java:110)
at com.atlassian.applinks.core.manifest.AppLinksManifestDownloader.download(AppLinksManifestDownloader.java:87)
at com.atlassian.applinks.core.manifest.ManifestRetrieverDispatcher.getManifest(ManifestRetrieverDispatcher.java:46)
at com.atlassian.applinks.core.rest.ui.CreateApplicationLinkUIResource.tryToFetchManifest(CreateApplicationLinkUIResource.java:145)
... 2 filtered
at java.lang.reflect.Method.invoke(Method.java:498)
... 3 filtered
at com.atlassian.applinks.internal.rest.interceptor.NoCacheHeaderInterceptor.intercept(NoCacheHeaderInterceptor.java:15)
... 1 filtered
at com.atlassian.applinks.core.rest.auth.AdminApplicationLinksInterceptor.intercept(AdminApplicationLinksInterceptor.java:39)
... 1 filtered
at com.atlassian.applinks.core.rest.context.ContextInterceptor.intercept(ContextInterceptor.java:19)
... 15 filtered
at com.atlassian.plugins.rest.module.RestDelegatingServletFilter$JerseyOsgiServletContainer.doFilter(RestDelegatingServletFilter.java:154)
... 1 filtered
at com.atlassian.plugins.rest.module.RestDelegatingServletFilter.doFilter(RestDelegatingServletFilter.java:68)
... 32 filtered
at com.atlassian.applinks.cors.rest.CorsFilter.doFilter(CorsFilter.java:112)
... 57 filtered
at com.atlassian.jira.security.JiraSecurityFilter.doFilter(JiraSecurityFilter.java:70)
... 16 filtered
at com.atlassian.plugins.rest.module.servlet.RestSeraphFilter.doFilter(RestSeraphFilter.java:37)
... 73 filtered
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1509)
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979)
at sun.security.ssl.Handshaker.process_record(Handshaker.java:914)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:394)
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:353)
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:134)
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380)
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
at com.atlassian.sal.core.net.HttpClientRequest.executeAndReturn(HttpClientRequest.java:109)
at com.atlassian.plugins.rest.module.jersey.JerseyRequest.executeAndReturn(JerseyRequest.java:131)
at com.atlassian.plugins.rest.module.jersey.JerseyRequest.execute(JerseyRequest.java:113)
at com.atlassian.applinks.core.manifest.AppLinksManifestDownloader.doDownload(AppLinksManifestDownloader.java:181)
... 230 more
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387)
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292)
at sun.security.validator.Validator.validate(Validator.java:260)
at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324)
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491)
... 252 more
Caused by: 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:382)
... 258 more
