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java.lang.NullPointerException: null at com.sonatype.nexus.repository.npm.internal.NpmMetadataUtils.rewriteTarballUrl(NpmMetadataUtils.java:142)[na:na] at sun.reflect.GeneratedMethodAccessor198.invoke(Unknown Source)[na:na] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[na:1.8.0_65] at java.lang.reflect.Method.invoke(Method.java:497)[na:1.8.0_65]