Splunk Dev

Connecting to Splunk via Java SDK, why am I getting error "java.lang.IllegalArgumentException: URI can't be null."


I am trying to connect to Splunk using the Java SDK. I created a new project in Java using Maven and have the following code provided by Splunk.

ServiceArgs loginArgs = new

Service service = Service.connect(loginArgs);

When I run this, I get "java.lang.IllegalArgumentException: URI can't be null."

What am I supposed to use for the hostname? Most examples show hostname as localhost.

I normally access Splunk using a url "mycompany.splunkcloud.com" and enter my credentials.

Tags (4)
0 Karma


Hi thewho123,

I had the same problem recently. The issue turned out to be a default setting when running Java 1.8. I'm linking to the resolution here: https://answers.splunk.com/answers/463594/severe-uri-cant-be-null.html

You have to explicitly set the SslSecurityProtocol before calling Service.connect:

 HttpService.setSslSecurityProtocol( SSLSecurityProtocol.TLSv1_2 );

Hope this helps

0 Karma
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