kristofer/JavaExercism: lots of exercises in java... from https://github.com/exercism/java

lots of exercises in java... from https://github.com/exercism/java

Brandon Kiefer e43de6f939 remove public access modifiers on ref solution and initial stub exception for circular buffer		8 anni fa
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main/java	remove public access modifiers on ref solution and initial stub exception for circular buffer	8 anni fa
test/java	switch from assertEquals to assertThat to avoid autoboxing/unboxing bugs when testing equality for Integers	9 anni fa