Nexus Database Migrator fails when symlink is used for data directory or data directory not in standard location

[nexus@centos79 db]$ ls -l /opt/nexus-psql/sonatype-work
total 43692
drwxr-xr-x 10 nexus nexus      141 Apr 13 11:21 blobs
-rw-r--r--  1 nexus nexus 44740395 Aug 10 10:28 latest.jar
drwxrwxr-x  2 nexus nexus       46 Aug 10 10:52 logs
lrwxrwxrwx  1 nexus nexus       11 Aug 10 12:06 nexus -> /nexus-data


[nexus@centos79 db]$ pwd
/opt/nexus-psql/sonatype-work/nexus/db

[nexus@centos79 db]$ pwd[nexus@centos79 db]$ pwd
/opt/nexus-psql/sonatype-work/nexus/db

[nexus@centos79 db]$ java -Xmx4G -Xms4G -XX:MaxDirectMemorySize=4014M -jar /opt/nexus-psql/sonatype-work/latest.jar  --migration_type=postgres --db_url="jdbc:postgresql://localhost:5432/nexusdb?user=nexus&password=nexus123"
12:06:51 [main] INFO  c.s.n.d.migrator.MigratorApplication - --content_migration parameter is absent. Setting it to true.12:06:51 [main] INFO  c.s.n.d.migrator.MigratorApplication - ------------------------------------------------------------
12:06:51 [main] INFO  c.s.n.d.migrator.MigratorApplication - Java version: Red Hat, Inc. 1.8.0_28212:06:51 [main] INFO  c.s.n.d.migrator.MigratorApplication - JVM arguments: -Xmx4G -Xms4G -XX:MaxDirectMemorySize=4014M12:06:51 [main] INFO  c.s.n.d.migrator.MigratorApplication - Migrator arguments: --migration_type=postgres --db_url=jdbc:postgresql://localhost:5432/nexusdb?user=nexus&password=**** --content_migration=true12:06:51 [main] INFO  c.s.n.d.migrator.MigratorApplication - ------------------------------------------------------------
12:06:51 [main] INFO  c.s.n.d.migrator.MigratorApplication - Starting MigratorApplication v3.33.0-01 on centos79.avsrini.net with PID 10827 (/opt/nexus-psql/sonatype-work/latest.jar started by nexus in /nexus-data/db)
12:06:51 [main] INFO  c.s.n.d.migrator.MigratorApplication - No active profile set, falling back to default profiles: default
12:06:52 [main] INFO  o.s.b.c.r.s.JobRepositoryFactoryBean - No database type set, using meta data indicating: POSTGRES
12:06:52 [main] INFO  c.s.n.d.migrator.MigratorApplication - Started MigratorApplication in 1.495 seconds (JVM running for 1.8)
12:06:52 [main] INFO  o.s.b.a.b.JobLauncherCommandLineRunner - Running default command line with: [--migration_type=postgres, --db_url=jdbc:postgresql://localhost:5432/nexusdb?user=nexus&password=nexus123, --content_migration=true]
12:06:52 [main] INFO  o.s.b.a.l.ConditionEvaluationReportLoggingListener -
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
12:06:52 [main] ERROR o.s.boot.SpringApplication - Application run failedjava.lang.IllegalStateException: Failed to execute CommandLineRunner at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:787) at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:768) at org.springframework.boot.SpringApplication.run(SpringApplication.java:322) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) at com.sonatype.nexus.db.migrator.MigratorApplication.main(MigratorApplication.java:61)Caused by: com.sonatype.nexus.db.migrator.exception.InvalidMigratorLocationException: You have to put the migrator jar file into the Nexus Repository `sonatype-work/nexus3/db` folder

[nexus@centos79 db]$ java -Xmx4G -Xms4G -XX:MaxDirectMemorySize=4014M -jar /opt/nexus-psql/sonatype-work/latest.jar --orient.folder=/nexus-data/db --migration_type=postgres --db_url="jdbc:postgresql://localhost:5432/nexusdb?user=nexus&password=nexus123"
12:13:40 [main] INFO  c.s.n.d.migrator.MigratorApplication - --content_migration parameter is absent. Setting it to true.
12:13:40 [main] INFO  c.s.n.d.migrator.MigratorApplication - ------------------------------------------------------------
;
;
12:13:41 [main] INFO  o.s.b.a.b.JobLauncherCommandLineRunner - Running default command line with: [--orient.folder=/nexus-data/db, --migration_type=postgres, --db_url=jdbc:postgresql://localhost:5432/nexusdb?user=nexus&password=nexus123, --content_migration=true]
12:13:41 [main] INFO  o.s.b.a.b.JobLauncherCommandLineRunner - Running default command line with: [--orient.folder=/nexus-data/db, --migration_type=postgres, --db_url=jdbc:postgresql://localhost:5432/nexusdb?user=nexus&password=nexus123, --content_migration=true]
12:13:42 [main] INFO  o.s.b.a.l.ConditionEvaluationReportLoggingListener -
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.

12:13:42 [main] ERROR o.s.boot.SpringApplication - Application run failedjava.lang.IllegalStateException: Failed to execute CommandLineRunner at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:787) at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:768) at org.springframework.boot.SpringApplication.run(SpringApplication.java:322) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) at com.sonatype.nexus.db.migrator.MigratorApplication.main(MigratorApplication.java:61)Caused by: com.sonatype.nexus.db.migrator.exception.InvalidMigratorLocationException: You have to put the migrator jar file into the Nexus Repository `sonatype-work/nexus3/db` folder