Error in BI Server logs-Failed to create system session due to exception: java.net.ConnectException: Connection refused

 Following is the error in BI logs:

 [2023-04-03T22:31:52.633-04:00] [bi_server1] [ERROR] [] [oracle.biee.search] [tid: BISearchSujectAreaPushCrawler-thread-1] [userId: <anonymous>] [ecid: eed40b4f-e0e5-4d62-8ab6-0cdcabc489fe-0000000d,0:776:7:39] [APP: bisearch] [partition-name: DOMAIN] [tenant-name: GLOBAL] Failed to create system session due to exception: java.net.ConnectException: Connection refused (Connection refused)[[
 javax.xml.ws.ProtocolException: java.net.ConnectException: Connection refused (Connection refused)
        at com.siebel.analytics.web.jaxwsutils.HttpTcpBridge.sendHttpRequest(HttpTcpBridge.java:105)
        at com.siebel.analytics.web.jaxwsutils.DirectSoapCaller.invokeSoapMethod(DirectSoapCaller.java:221)
        at com.siebel.analytics.web.jaxwsutils.SAWSOAPTcpConnector.invokeSoapMethod(SAWSOAPTcpConnector.java:79)
        at com.siebel.analytics.web.jaxwsutils.SOAPInterfaceProxy.invoke(SOAPInterfaceProxy.java:206)
        at com.sun.proxy.$Proxy718.logonex(Unknown Source)
        at oracle.biee.search.security.BISearchSessionManager$BIPSSoapSession.createSessionID(BISearchSessionManager.java:576)
        at oracle.biee.search.security.BISearchSessionManager$BIPSSoapSession.createSession(BISearchSessionManager.java:440)
        at oracle.biee.search.security.BISearchSessionManager$BIPSSoapSession.<init>(BISearchSessionManager.java:423)
        at oracle.biee.search.security.BISearchSessionManager$BIPSSoapSession.<init>(BISearchSessionManager.java:403)
        at oracle.biee.search.security.BISearchSessionManager.lambda$getSession$0(BISearchSessionManager.java:290)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at oracle.biee.search.security.BISearchSessionManager.getSession(BISearchSessionManager.java:301)
        at oracle.biee.search.security.BISearchSessionManager.getSystemSession(BISearchSessionManager.java:360)
        at oracle.biee.search.security.BISearchSessionManager.getSystemSession(BISearchSessionManager.java:366)
        at oracle.biee.search.services.crawl.scheduler.BISearchSubjectAreaUpdater$SubjectAreaUpdater.call(BISearchSubjectAreaUpdater.java:117)
        at oracle.biee.search.services.crawl.scheduler.BISearchSubjectAreaUpdater$SubjectAreaUpdater.call(BISearchSubjectAreaUpdater.java:72)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:750)
Caused by: java.net.ConnectException: Connection refused (Connection refused)
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)


Solution:
Start System Components of OBIEE as following:

1. Login to EM as admin user

2. Click on Navigation Icon

3. Expand Business Intelligence

4. Click on biinstance

5. Click on Availability Tab

6.Click Start All to start the Components

List of jars required to connect to OIM using Java

Issue: I am trying to create a Java project to connect to OIM to fetch some details using OIM Api's and I am facing the below error in Jdev project.

Error:

Exception in thread "main" java.lang.NoClassDefFoundError: oracle/idm/diagnostics/client/ContextSensitiveLogger
    at oimclient/oracle.iam.platform.auth.client._.<clinit>(_.java:39)
    at oimclient/Thor.API.Security.LoginHandler.weblogicLoginHandler.login(weblogicLoginHandler.java:60)
    at oimclient/oracle.iam.platform.OIMClient.login(OIMClient.java:213)
    at oimclient/oracle.iam.platform.OIMClient.login(OIMClient.java:184)
    at RMSEnrolmentPOC/oim.poc.ADConnectionWrite.oimClient(ADConnectionWrite.java:28)
    at RMSEnrolmentPOC/oim.poc.ADConnectionWrite.main(ADConnectionWrite.java:85)
Caused by: java.lang.ClassNotFoundException: oracle.idm.diagnostics.client.ContextSensitiveLogger
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)

 

SOLUTION:

List of jars required to connect to OIG 12.2.1.4.0 server using APIs through JDeveloper 12.2.1.4.0 are,

$MW_HOME/oracle_common/modules/oracle.jrf/jrf-api.jar
$MW_HOME/oracle_common/modules/org.apache.commons.logging_1.2.jar

$MW_HOME/oracle_common/modules/thirdparty/spring-core-4.3.20.RELEASE.jar
$MW_HOME/oracle_common/modules/thirdparty/spring-context-4.3.20.RELEASE.jar

$MW_HOME/wlserver/server/lib/wlthint3client.jar

$MW_HOME/idm/designconsole/lib/oimclient.jar

$MW_HOME/idm/server/idmdf/idmdf-common.jar
$MW_HOME/idm/server/idmdf/event-recording-client.jar
$MW_HOME/idm/server/idmdf/idmdf-notification-engine.jar