In affected IT.java's, replace inheritance flags with polymorphism

[sming]

or in more mechanical terms:

replace:

flags in IT.java base classes like protected boolean subclassHasFeatureX = true;
+
tests for that flag in the base class e.g. assumeTrue("Test huge row key write", hugeRowKey)
+
setting of said flag in concrete subclasses e.g. this.subclassHasFeatureX = false;

with:

1. remove the flag
2. keep the test in the base class but move the body of the test to a virtual method e.g.

@Test
public void FeatureXTest() {
    FeatureXTestImpl();
}

public void FeatureXTestImpl() {
    // test guts
}

1. in subclasses that do not support FeatureX, override FeatureTestImpl to be a no-op:

@Override
public void FeatureXTestImpl() { /* no-op */ }

et voila

no more flags or run time exceptions if the developer forgets that the subclass doesn't support feature X.

See the original comment here.