Hi, our service is using this mailing library and we are getting the following integration error with our fips compliance configuration.

ERROR 2020-07-02 18:29:11,118 [pool-14-thread-4] com.oracle.pic.announcements.management.email.DynSmtpHealthCheck: dyn healthcheck failed
org.simplejavamail.mailer.internal.MailerException: Was unable to connect to SMTP server
at org.simplejavamail.mailer.internal.TestConnectionClosure.executeClosure(TestConnectionClosure.java:57)
at org.simplejavamail.mailer.internal.AbstractProxyServerSyncingClosure.run(AbstractProxyServerSyncingClosure.java:56)
at org.simplejavamail.mailer.internal.MailerImpl.testConnection(MailerImpl.java:303)
at org.simplejavamail.mailer.internal.MailerImpl.testConnection(MailerImpl.java:292)
at com.oracle.pic.announcements.management.email.SimpleMailSender.testConnection(SimpleMailSender.java:23)
at com.oracle.pic.announcements.management.email.DynSmtpHealthCheck.check(DynSmtpHealthCheck.java:26)
at com.codahale.metrics.health.HealthCheck.execute(HealthCheck.java:320)
at com.oracle.pic.announcements.common.health.DownstreamServicesHealthcheck$AsyncHealthCheck.lambda$new$0(DownstreamServicesHealthcheck.java:146)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: javax.mail.MessagingException: Could not convert socket to TLS
at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:2140)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:734)
at javax.mail.Service.connect(Service.java:342)
at javax.mail.Service.connect(Service.java:222)
at javax.mail.Service.connect(Service.java:171)
at org.simplejavamail.mailer.internal.util.TransportRunner.runOnSessionTransport(TransportRunner.java:75)
at org.simplejavamail.mailer.internal.util.TransportRunner.connect(TransportRunner.java:60)
at org.simplejavamail.mailer.internal.TestConnectionClosure.executeClosure(TestConnectionClosure.java:54)
... 14 common frames omitted
Caused by: java.io.IOException: Can't create MailSSLSocketFactory
at com.sun.mail.util.SocketFetcher.startTLS(SocketFetcher.java:517)
at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:2135)
... 21 common frames omitted
Caused by: java.security.KeyManagementException: FIPS mode: only SunJSSE TrustManagers may be used
at sun.security.ssl.SSLContextImpl.chooseTrustManager(SSLContextImpl.java:120)
at sun.security.ssl.SSLContextImpl.engineInit(SSLContextImpl.java:83)
at javax.net.ssl.SSLContext.init(SSLContext.java:282)
at com.sun.mail.util.MailSSLSocketFactory.newAdapteeFactory(MailSSLSocketFactory.java:109)
at com.sun.mail.util.MailSSLSocketFactory.(MailSSLSocketFactory.java:96)
at com.sun.mail.util.MailSSLSocketFactory.(MailSSLSocketFactory.java:70)
at com.sun.mail.util.SocketFetcher.startTLS(SocketFetcher.java:509)
... 22 common frames

If the socketfactory config is exposed we can inject our own class and configure the trustmanager.