Correct JDBC url using IPC protocol

Question

What is correct url to connect to db with orcl SID using IPC protocol? Couldn't find this in documentation....
jdbc:oracle:oci:@[WHAT GOES HERE?]

Answer 1

If you are having problems with TCP then you should find and fix those problems. Many thousands of others use TCP with, and without, Glassfish and it works just fine for them. That indicates you have an issue with one, or more of those four things I ask you to provide but chose not to.
Fix would be to upgrade DB to 12.1.0.2 or downgrade to 11, where I haven't got any problems with connection pool.
SHOW US (don't just tell us):
1. WHAT you are doing - that means posting the code and ALL relevant info about TNSNAMES and other properties/settings being used such as connection pool settings.
2. HOW you are doing it - that means showing a copy of the console that shows the LAUNCH and EXECUTION of the code
3. WHAT results you get - that means showing a copy of the console showing any results or exceptions you are getting
4. WHAT results you expected to get
You should also do basic troublshooting:
1. confirm that you can connect to the DB without using JDBC
2. confirm that you can connect and work properly WITHOUT using a connection pool
That other link you provided shows pool settings that are pretty much guaranteed to cause the pool to close connections. An idle timeout of only 60 seconds greatly increases the possibility that a connection that is checked out of the pool and still in use may get closed if it isn't returned to the pool properly.
This link describes the attirbutes  and their defaults:
https://docs.oracle.com/cd/E19316-01/820-4338/abhcy/index.html
You are using SEVERAL non-default settings - and you are having a problem. That suggests you should go back to the defaults and test again.
We can NOT see your computer screen or SEE what you are doing. We can NOT debug code that we can't see.
Are you a bot? Or are you using some replay templates? Have you read my first post? Do I ask for help in debug any code? What code you are taking about? I ask for proper url using OCI driver over IPC protocol.
This is my tnsnames.ora
ORCL_IPC =
  (DESCRIPTION =
    (ENABLE = BROKEN)
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(Key = ORCL))
      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = ORCL)
and jdbc config
<jdbc-connection-pool validation-table-name="DUAL" datasource-classname="oracle.jdbc.pool.OracleDataSource" max-pool-size="50" res-type="javax.sql.DataSource" steady-pool-size="10" statement-cache-size="100" name="c2onlinePool" statement-timeout-in-seconds="30" is-connection-validation-required="true" idle-timeout-in-seconds="7200" max-wait-time-in-millis="10000" validate-atmost-once-period-in-seconds="60">
      <property name="driverClass" value="oracle.jdbc.OracleDriver"></property>
      <property name="user" value="***"></property>
      <property name="url" value="jdbc:oracle:thin:@127.0.0.1:1521/orcl"></property>
      <property name="password" value="***"></property>
      <property name="portNumber" value="1521"></property>
      <property name="databaseName" value="orcl"></property>
      <property name="serverName" value="127.0.0.1"></property>
</jdbc-connection-pool>
which is working (I'm testing with ping from glassfish web console), I just want to switch to IPC protocol.
I tried with
jdbc:oracle:oci:@(DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY = LISTENER))(CONNECT_DATA=(SERVICE_NAME=orcl)))
jdbc:oracle:oci:@(DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=ORCL)))
but every time JVM crashes with stackoverflow, as soon as I click on ping in console.
Maybe it's just another driver bug. I have similar situation with thin driver - version 12.1.0.1 didn't work, but version 12.1.0.2 worked ok.