CrackMe.apk
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package com.facebook.common.internal;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
public class ImmutableSet<E> extends HashSet<E> {
private ImmutableSet(Set<E> set) {
super(set);
}
public static <E> ImmutableSet<E> copyOf(Set<E> set) {
return new ImmutableSet<>(set);
}
public static <E> ImmutableSet<E> of(E... eArr) {
HashSet hashSet = new HashSet(eArr.length);
Collections.addAll(hashSet, eArr);
return new ImmutableSet<>(hashSet);
}
}
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