Using Oracle JDeveloper on Linux the Test Connection Database Wizard Throws "Test failed: The Network Adapter could not establish the connection" (Doc ID 1058939.1)

Last updated on AUGUST 04, 2016

Applies to:

Oracle JDeveloper - Version 10.1.3.1.0 to 11.1.1.2.0 [Release Oracle10g to Oracle11g]
Information in this document applies to any platform.

Symptoms

The issue happens using Oracle JDeveloper on a Linux machine.
When testing a database connection to a previously created database in another machine, the following error message is thrown:

"Test failed: The Network Adapter could not establish the connection"


This error typically happens when you have no connectivity with the remote machine where the database is located, but in this case the connection can be established using a telnet to the database listener port.

Cause

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms