IFTTT integration not working anymore

javax.net.ssl.SSLHandshakeException: No X509TrustManager implementation available
        at sun.security.ssl.Alert.createSSLException(Alert.java:131) ~[?:?]
        at sun.security.ssl.TransportContext.fatal(TransportContext.java:369) ~[?:?]
        at sun.security.ssl.TransportContext.fatal(TransportContext.java:312) ~[?:?]
        at sun.security.ssl.TransportContext.fatal(TransportContext.java:307) ~[?:?]
        at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:654) ~[?:?]
        at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(CertificateMessage.java:473) ~[?:?]
        at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(CertificateMessage.java:369) ~[?:?]
        at sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:392) ~[?:?]
        at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:478) ~[?:?]
        at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:456) ~[?:?]
        at sun.security.ssl.TransportContext.dispatch(TransportContext.java:199) ~[?:?]
        at sun.security.ssl.SSLTransport.decode(SSLTransport.java:171) ~[?:?]
        at sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1369) ~[?:?]
        at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1278) ~[?:?]
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:401) ~[?:?]
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:373) ~[?:?]
        at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:436) ~[httpclient-4.5.13.jar:4.5.13]
        at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:384) ~[httpclient-4.5.13.jar:4.5.13]
        at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:142) ~[httpclient-4.5.13.jar:4.5.13]
        at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:376) ~[httpclient-4.5.13.jar:4.5.13]
        at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:393) ~[httpclient-4.5.13.jar:4.5.13]
        at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) ~[httpclient-4.5.13.jar:4.5.13]
        at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186) ~[httpclient-4.5.13.jar:4.5.13]
        at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89) ~[httpclient-4.5.13.jar:4.5.13]
        at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.13.jar:4.5.13]
        at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) ~[httpclient-4.5.13.jar:4.5.13]
        at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) ~[httpclient-4.5.13.jar:4.5.13]
        at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108) ~[httpclient-4.5.13.jar:4.5.13]
        at org.opennms.features.ifttt.helper.IfTttTrigger.trigger(IfTttTrigger.java:93) [!/:?]
        at org.opennms.features.ifttt.IfTttDaemon.fireIfTttTriggerSet(IfTttDaemon.java:349) [!/:?]
        at org.opennms.features.ifttt.IfTttDaemon.fireIfTttTriggerSet(IfTttDaemon.java:318) [!/:?]
        at org.opennms.features.ifttt.IfTttDaemon$1$1.doInTransactionWithoutResult(IfTttDaemon.java:246) [!/:?]
        at org.springframework.transaction.support.TransactionCallbackWithoutResult.doInTransaction(TransactionCallbackWithoutResult.java:34) [org.apache.servicemix.bundles.spring-tx-4.2.9.RELEASE_1.jar:?]
        at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133) [org.apache.servicemix.bundles.spring-tx-4.2.9.RELEASE_1.jar:?]
        at Proxy499c0a65_42f1_4eb8_9d5c_a100d2312d7a.execute(Unknown Source) [?:?]
        at org.opennms.features.ifttt.IfTttDaemon$1.run(IfTttDaemon.java:206) [!/:?]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305) [?:?]
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305) [?:?]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
        at java.lang.Thread.run(Thread.java:834) [?:?]
Caused by: java.security.cert.CertificateException: No X509TrustManager implementation available
        at sun.security.ssl.DummyX509TrustManager.checkServerTrusted(SSLContextImpl.java:1706) ~[?:?]
        at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:638) ~[?:?]
        ... 37 more