AbstractDSpaceIntegrationTest: consider removing or replacing method System.setSecurityManager

[saschaszott]

Bug Description

When running JUnit integration tests on the main branch the following (red) message appears in IntelliJ:

WARNING: A terminally deprecated method in java.lang.System has been called
WARNING: System::setSecurityManager has been called by org.dspace.AbstractDSpaceIntegrationTest (file:/local-path-to-dspace-clone/dspace-api/target/test-classes/)
WARNING: Please consider reporting this to the maintainers of org.dspace.AbstractDSpaceIntegrationTest
WARNING: System::setSecurityManager will be removed in a future release

It is caused by System.setSecurityManager() in AbstractDSpaceIntegrationTest:

DSpace/dspace-api/src/test/java/org/dspace/AbstractDSpaceIntegrationTest.java

Line 64 in 50aaec1

System.setSecurityManager(new NoExitSecurityManager());

DSpace/dspace-api/src/test/java/org/dspace/AbstractDSpaceIntegrationTest.java

Line 100 in 50aaec1

System.setSecurityManager(null);

[tdonohue]

I've seen this as well. It's just a warning at this point, and I'm not sure myself how to solve the issue (removing these calls causes tests to fail). But, it needs a volunteer to investigate & find a solution.