java.lang.IllegalArgumentException: Host name may not be null

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java.lang.IllegalArgumentException: Host name may not be null
at org.apache.maven.wagon.providers.http.httpclient.HttpHost.(HttpHost.java:79)
at org.apache.maven.wagon.providers.http.httpclient.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:501)
at org.apache.maven.wagon.providers.http.httpclient.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
at org.apache.maven.wagon.providers.http.httpclient.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
at org.apache.maven.wagon.shared.http4.AbstractHttpClientWagon.execute(AbstractHttpClientWagon.java:746)

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