Two ways can be used to check/confirm the JVM (Java Virtual Machine) version in a 19c database.
1. Set env for database
$ echo $ORACLE_HOME
/u01/app/oracle/product/19.0.0.0/db_ebsdev
$ opatch lsinventory|grep "Patch description"
Patch description: "INCREASE _LM_RES_HASH_BUCKET AND BACK OUT CHANGES FROM THE BUG 29416368 FIX"
Patch description: "ORA-600 [KTSL_ALLOCATE_DISP KCBZ_OBJDCHK] ORA-600 [KCBZIB_6] SECUREFILE DOUBLE ALLOCATION"
Patch description: "MERGE ON DATABASE RU 19.15.0.0.0 OF 28318139 28357349 28555193 28771564 29276889"
Patch description: "DBMS_STATS.IMPORT_DATABASE_STATS FAILING WITH ERROR OPERATION NOT ALLOWED FROM WITHIN A PLUGGABLE DATABASE"
Patch description: "IMPDP TAKES LONG TIME WHEN IMPORTING BASELINES"
Patch description: "OJVM RELEASE UPDATE: 19.15.0.0.220419 (33808367)"
Patch description: "Database Release Update : 19.15.0.0.220419 (33806152)"
Patch description: "OCW RELEASE UPDATE 19.9.0.0.0 (31772784)"
$
$ opatch lspatches
29780459;INCREASE _LM_RES_HASH_BUCKET AND BACK OUT CHANGES FROM THE BUG 29416368 FIX
32455516;ORA-600 [KTSL_ALLOCATE_DISP KCBZ_OBJDCHK] ORA-600 [KCBZIB_6] SECUREFILE DOUBLE ALLOCATION
33956157;MERGE ON DATABASE RU 19.15.0.0.0 OF 28318139 28357349 28555193 28771564 29276889
33405295;DBMS_STATS.IMPORT_DATABASE_STATS FAILING WITH ERROR OPERATION NOT ALLOWED FROM WITHIN A PLUGGABLE DATABASE
31665107;IMPDP TAKES LONG TIME WHEN IMPORTING BASELINES
33808367;OJVM RELEASE UPDATE: 19.15.0.0.220419 (33808367)
33806152;Database Release Update : 19.15.0.0.220419 (33806152)
31772784;OCW RELEASE UPDATE 19.9.0.0.0 (31772784)
OPatch succeeded.
2. Login to database and run below
SET PAGESIZE 60
SET LINESIZE 300
SET VERIFY OFF
COL comp_name FOR a44 HEA 'Component'
COL version FOR a17 HEA 'Version'
COL VERSION_FULL FOR a17 HEA 'VERSION_FULL'
COL status FOR a17 HEA 'Status'
SELECT comp_name, version,VERSION_FULL, status FROM dba_registry;
Component Version VERSION_FULL Status
-------------------------------------------- ----------------- ----------------- -----------------
JServer JAVA Virtual Machine 19.0.0.0.0 9.15.0.0.0 VALID
... ...
