Yes, a Hibernate Entity class can be declared final, however it is not a good practice.

Hibernate uses the proxy pattern for performance improvement during lazy association, by making an entity final, Hibernate will no longer be able to use a proxy as Java doesn’t allow the final class to be extended.

Important points to about Entity class, Final, and Proxying

Hibernate doesn’t create a proxy for final class, instead, they use the real class, but Hibernate does create a proxy for a non-final class with final methods.

3) As per Hibernate documentation, if you’re going to make a class final you should explicitly disable proxy generation by adding @Proxy(lazy=false), but I haven’t noticed any differences between doing that and just making the class final.

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o/p
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public class Application {
public static void main(String[] args) {
Integer[] x = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
int length = x.length;
int pos = 4;
int temp;
for (int i = 0; i < length — 1; i++)
System.out.print(x[i] + “ “);
for (int i = 0; i < pos / 2; i++) {
temp = x[i];
x[i] = x[pos — i — 1];
x[pos — i — 1] = temp;}

System.out.println();
for (int i = 0; i < length — 1; i++)
System.out.print(x[i] + “ “);}}

O/p
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4 3 2 1 5 6 7 8 9

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