GIT clone ssh not working with java 8 > u111 in drools workbench ---------------------------------------------------------------- Key: DROOLS-2528 URL: https://issues.jboss.org/browse/DROOLS-2528 Project: Drools Issue Type: Bug Affects Versions: 6.5.0.Final, 7.5.0.Final, 7.7.0.Final Environment: CentOS 7, Java 8 u111, Java 8 u161, Java 9, Java 10 Reporter: Alexander Revkov Assignee: Alexandre Porcelli Priority: Critical I cloned my repo by git-ssh ssh://my_ip:8080/myrepo If i run drools workbench with java 8 u111. This work is fine. But when i try run workbench with latest version of java 8u161, 9 or 10. clone with ssh not working. I see this exception in log: {code:java} Exception caught: java.security.InvalidKeyException: The security strength of SHA-1 digest algorithm is not sufficient for this key size at sun.security.provider.DSA.checkKey(DSA.java:111) at sun.security.provider.DSA.engineInitSign(DSA.java:143) at java.security.Signature$Delegate.engineInitSign(Signature.java:1178) at java.security.Signature.initSign(Signature.java:531) at org.apache.sshd.common.signature.AbstractSignature.init(AbstractSignature.java:47) at org.apache.sshd.server.kex.AbstractDHGServer.next(AbstractDHGServer.java:91) at org.apache.sshd.common.session.AbstractSession.doHandleMessage(AbstractSession.java:393) at org.apache.sshd.common.session.AbstractSession.handleMessage(AbstractSession.java:295) at org.apache.sshd.common.session.AbstractSession.decode(AbstractSession.java:731) at org.apache.sshd.common.session.AbstractSession.messageReceived(AbstractSession.java:277) at org.apache.sshd.common.AbstractSessionIoHandler.messageReceived(AbstractSessionIoHandler.java:54) at org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:187) at org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:173) at org.apache.sshd.common.io.nio2.Nio2CompletionHandler$1.run(Nio2CompletionHandler.java:32) at java.security.AccessController.doPrivileged(Native Method) at org.apache.sshd.common.io.nio2.Nio2CompletionHandler.completed(Nio2CompletionHandler.java:30) at sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126) at sun.nio.ch.Invoker$2.run(Invoker.java:218) at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) {code} Maybe this is related to this? http://www.oracle.com/technetwork/java/javase/8u151-relnotes-3850493.html If yes what users need do to fix it? Else, please fix it. Thank you.