Exception: "The security strength of SHA-1 digest algorithm is not sufficient for this key size" thrown in the JBoss ON agent log when trying to connect to the server

Issue

• Exception: "The security strength of SHA-1 digest algorithm is not sufficient for this key size" thrown in the JBoss ON agent log when trying to connect to the server;

• Error while starting RHQ agent:

  ERROR [WorkerThread#0[10.11.12.13:53232]] (jboss.remoting.transport.socket.ServerThread)- WorkerThread#0[10.124.237.69:53232] exception occurred during first invocation
  java.lang.reflect.InvocationTargetException
  ...
  Caused by: javax.net.ssl.SSLException: Error generating DH server key exchange
  ...
  Caused by: 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.SignatureSpi.engineInitSign(SignatureSpi.java:103)
          at java.security.Signature$Delegate.init(Signature.java:1155)
          at java.security.Signature$Delegate.chooseProvider(Signature.java:1112)
          at java.security.Signature$Delegate.engineInitSign(Signature.java:1185)
          at java.security.Signature.initSign(Signature.java:550)
          at sun.security.ssl.HandshakeMessage$DH_ServerKeyExchange.<init>(HandshakeMessage.java:750)
          at sun.security.ssl.ServerHandshaker.clientHello(ServerHandshaker.java:882)