SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
	at org.eclipse.mylyn.internal.bugzilla.core.BugzillaClient.connectInternal(BugzillaClient.java:335)
	at org.eclipse.mylyn.internal.bugzilla.core.BugzillaClient.getAttachmentData(BugzillaClient.java:818)
	at org.netbeans.modules.bugzilla.commands.GetAttachmentCommand.execute(GetAttachmentCommand.java:72)
	at org.netbeans.modules.bugzilla.commands.BugzillaExecutor.execute(BugzillaExecutor.java:123)
	at org.netbeans.modules.bugzilla.commands.BugzillaExecutor.execute(BugzillaExecutor.java:103)
	at org.netbeans.modules.bugzilla.commands.BugzillaExecutor.execute(BugzillaExecutor.java:99)
	at org.netbeans.modules.bugzilla.commands.BugzillaExecutor.execute(BugzillaExecutor.java:95)
	at org.netbeans.modules.bugzilla.issue.BugzillaIssue$Attachment.getAttachementData(BugzillaIssue.java:1288)
	at org.netbeans.modules.bugzilla.issue.BugzillaIssue$Attachment.saveToTempFile(BugzillaIssue.java:1398)
	at org.netbeans.modules.bugzilla.issue.BugzillaIssue$Attachment.access$500(BugzillaIssue.java:1190)
	at org.netbeans.modules.bugzilla.issue.BugzillaIssue$Attachment$1.run(BugzillaIssue.java:1303)
	at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
	at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2044)
Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
	at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
	at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1886)
	at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:276)
	at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:270)
	at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1341)
	at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:153)
	at sun.security.ssl.Handshaker.processLoop(Handshaker.java:868)
	at sun.security.ssl.Handshaker.process_record(Handshaker.java:804)
	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1016)
	at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1312)
	at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:702)
	at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:122)
	at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
	at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
	at org.apache.commons.httpclient.HttpConnection.flushRequestOutputStream(HttpConnection.java:828)
	at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.flushRequestOutputStream(MultiThreadedHttpConnectionManager.java:1565)
	at org.apache.commons.httpclient.HttpMethodBase.writeRequest(HttpMethodBase.java:2116)
	at org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:1096)
	at org.eclipse.mylyn.internal.bugzilla.core.GzipGetMethod.execute(GzipGetMethod.java:55)
	at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:398)
	at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
	at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
	at org.eclipse.mylyn.commons.net.WebUtil$2.execute(WebUtil.java:332)
	at org.eclipse.mylyn.commons.net.WebUtil$2.execute(WebUtil.java:1)
	at org.eclipse.mylyn.internal.commons.net.MonitoredRequest.call(MonitoredRequest.java:51)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
	at java.util.concurrent.FutureTask.run(FutureTask.java:166)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:722)
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:385)
	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:326)
	at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:231)
	at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:126)
	at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1323)
	... 25 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
	at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:196)
	at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:268)
	at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:380)
	... 31 more