Custom BSSV build issue

Hi,

We are in the process of doing a TR upgrade from 9.2.5 to 9.2.8 and having an issue with a BSSV build.

Tried this on JDeveloper versions 12.2.1.4 12.2.1.3, but still the same.

Any ideas or pointers ?

[javac] D:\E920\DV920\package\DVBSS\java\wls\source\oracle\e1\bssv\J55xxxxx\BLProcessor.java:24: error: package javax.ws.rs.client does not exist
[javac] import javax.ws.rs.client.Client;
[javac] ^
[javac] D:\E920\DV920\package\DVBSS\java\wls\source\oracle\e1\bssv\J55xxxxx\BLProcessor.java:25: error: package javax.ws.rs.client does not exist
[javac] import javax.ws.rs.client.ClientBuilder;
[javac] ^