Bug 575470 - JREActionTest.testDefaultJavaProfile fails with Java 16

Convert to JUnit4 and use direct assert methods for better reporting.

Change-Id: I2b3eb4849524e64e19416202ae9a419d28f4576a
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
Reviewed-on: https://git.eclipse.org/r/c/equinox/rt.equinox.p2/+/184190
2 files changed