Getting a JSON object through Liferay REST API no longer works on 7.2
Written By
Alfonso Crisci
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Issue
- After migrating to Liferay DXP 7.2 from previous versions, customers may notice that REST API implemented on the portal according to the JAX-RS tutorial and targeted to get a JSON object will return:
No message body writer has been found for class , ContentType: application/json
Instead of an object, like:
{"name":"Tom","department":"HR"}
Resolution
- Stop your server and cleanup the content of the
osgi/state folder as well as tomcat/work and /temp folders
- Locate the
org.apache.aries.jax.rs.jackson.config file inside osgi/configs folder
- Modify the content so that only the below line is present:
osgi.jaxrs.application.select="(&(!(jackson.disabled=true))(osgi.jaxrs.name=*))"
- Restart the server
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