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Throwable Occurred: Java.lang.IllegalArgumentException: Not Supported: Indent-number in ORDS (Doc ID 2014529.1)

Last updated on FEBRUARY 18, 2021

Applies to:

Oracle REST Data Services - Version 2.0.10 and later
Oracle SQL Developer - Version 4.0 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Information in this document applies to any platform.


When  trying to connect to a REST webservice with SQL*Developer, the following error is seen:

Throwable occurred: java.lang.IllegalArgumentException: Not supported: indent-number        
at org.apache.xalan.processor.TransformerFactoryImpl.setAttribute(Unknown Source)
       at weblogic.xml.jaxp.WebLogicTransformerFactory.setAttribute(
       at weblogic.xml.jaxp.RegistryTransformerFactory.setAttribute(


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