A protocol version error occurred while Archiva was running after successful installation:

Caused by: javax.net.ssl.SSLException: Received fatal alert: protocol_version
        at sun.security.ssl.Alerts.getSSLException(Alerts.java:208) ~[?:1.7.0_80]
        at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) ~[?:1.7.0_80]
        at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:1979) ~[?:1.7.0_80]
        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1086) ~[?:1.7.0_80]
        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1332) ~[?:1.7.0_80]
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1359) ~[?:1.7.0_80]
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1343) ~[?:1.7.0_80]
        at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:394) ~[httpclient-4.5.2.jar:4.5.2]
        at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:353) ~[httpclient-4.5.2.jar:4.5.2]
        at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:141) ~[httpclient-4.5.2.jar:4.5.2]
        at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353) ~[httpclient-4.5.2.jar:4.5.2]
        at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380) ~[httpclient-4.5.2.jar:4.5.2]
        at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) ~[httpclient-4.5.2.jar:4.5.2]
        at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184) ~[httpclient-4.5.2.jar:4.5.2]
        at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88) ~[httpclient-4.5.2.jar:4.5.2]
        at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.2.jar:4.5.2]
        at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184) ~[httpclient-4.5.2.jar:4.5.2]
        at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) ~[httpclient-4.5.2.jar:4.5.2]
        at org.apache.maven.wagon.providers.http.AbstractHttpClientWagon.execute(AbstractHttpClientWagon.java:832) ~[wagon-http-2.9.jar:2.9]
        at org.apache.maven.wagon.providers.http.AbstractHttpClientWagon.fillInputData(AbstractHttpClientWagon.java:983) ~[wagon-http-2.9.jar:2.9]
        ... 19 more

If you try to add a remote warehouse after installing Archiva 2.2.3.

But the remote warehouse can't synchronize the data to your local warehouse. At the same time, the server has the above error. But there is no problem with the installation and operation of Archiva.

In this case, you need to check your JDK version. If you are running JDK 1.7, try running JDK 1.8.