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java.lang.IllegalArgumentException: Host name may not be null	at org.apache.http.HttpHost.(HttpHost.java:83)	at org.apache.http.impl.client.AbstractHttpClient.determineTarget(AbstractHttpClient.java:586)	at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:576)	at org.jfrog.build.client.PreemptiveHttpClient.execute(PreemptiveHttpClient.java:95)	at org.jfrog.build.client.ArtifactoryHttpClient.getVersion(ArtifactoryHttpClient.java:130)	at org.jfrog.build.client.ArtifactoryBuildInfoClient.verifyCompatibleArtifactoryVersion(ArtifactoryBuildInfoClient.java:303)	at org.jfrog.bamboo.admin.ConfigureArtifactoryServerAction.testConnection(ConfigureArtifactoryServerAction.java:188)	at org.jfrog.bamboo.admin.ConfigureArtifactoryServerAction.doUpdate(ConfigureArtifactoryServerAction.java:104)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)