1ConcreteTest.java:8:18: compiler.err.override.weaker.access: (compiler.misc.cant.implement: perform(), two.ConcreteTest, perform(), one.Test), public 21 error 3
1ConcreteTest.java:8:18: compiler.err.override.weaker.access: (compiler.misc.cant.implement: perform(), two.ConcreteTest, perform(), one.Test), public 21 error 3