plugins/groovy/testdata/highlighting/missingReturn/OnlyAssert.groovy - platform/tools/idea - Git at Google

 Object foo() {
   String s = "a"
   assert s.length() == 1
 <warning descr="Not all execution paths return a value">}</warning>
	Object foo() {
	String s = "a"
	assert s.length() == 1
	<warning descr="Not all execution paths return a value">}</warning>