Oracle JDK 11 RPM Installation on Oracle Linux 7.5 without removing OpenJDK

In this video we are going to demonstarate how to install Oracle JDK 11 from RPM file on Oracle Linux 7.5.
We will see how to unlink the OpenJDK java instead of removing it and top of that we install Oracle JDK 11 RPM file.
Java SE 11 is the first Long Term Support feature release for the Java SE Platform with many new features and enhancements includes,
1. Unicode 10
2. HTTP Client (Standard)
4. Updated Locale Data to Unicode CLDR v33
5. Lazy Allocation of Compiler Threads
6. ZGC A Scalable Low-Latency Garbage Collector (Experimental)
7. Epsilon, A No-Op Garbage Collector
8. Low-Overhead Heap Profiling
9. Nest-Based Access Control
10. Key Agreement with Curve25519 and Curve448
11. Added Brainpool EC Support
12. ChaCha20 and Poly1305 Cryptographic Algorithms
13. Enhanced KeyStore Mechanisms
14. RSASSA-PSS Signature Support Added to SunMSCAPI
15. Transport Layer Security (TLS) 1.3
16. Support for AES Encryption with HMAC-SHA2 for Kerberos 5
17. Local-Variable Syntax for Lambda Parameters
18. Launch Single-File Source-Code Programs

Removed Features and Options
*******************************
Removal of Lucida Fonts from Oracle JDK
Removal of appletviewer Launcher
Removal of JVM-MANAGEMENT-MIB.mib
Removal of Java Deployment Technologies
Removal of JMC from the Oracle JDK
Removal of JavaFX from the Oracle JDK
Removal of Java EE and CORBA Modules

[NehaYadav-YT]

What to do in case want to link the OpenJDK back?

[brysonward]

didnt undestand the step where you use the grep command, i use it but couldnt find the file jdk-11-11.ga