RevisionVector implements Iterable<Revision>, Comparable<RevisionVector>, CacheValue { @Override public boolean equals(Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } RevisionVector other = (RevisionVector) o; return Arrays.equals(revisions, other.revisions); } private  RevisionVector(@NotNull Revision[] revisions,
                           boolean checkUniqueClusterIds,
                           boolean sort);  RevisionVector(@NotNull Revision... revisions);  RevisionVector(@NotNull Iterable<Revision> revisions);  RevisionVector(@NotNull Set<Revision> revisions); RevisionVector update(@NotNull Revision revision); RevisionVector remove(int clusterId); RevisionVector pmin(@NotNull RevisionVector vector); RevisionVector pmax(@NotNull RevisionVector vector); RevisionVector difference(RevisionVector vector); boolean isRevisionNewer(@NotNull Revision revision); boolean isBranch(); @NotNull Revision getBranchRevision(); Revision getRevision(int clusterId); String asString(); StringBuilder toStringBuilder(StringBuilder sb); static RevisionVector fromString(String s); RevisionVector asTrunkRevision(); RevisionVector asBranchRevision(int clusterId); int getDimensions(); @Override int getMemory(); @Override int compareTo(@NotNull RevisionVector other); @Override Iterator<Revision> iterator(); @Override String toString(); @Override boolean equals(Object o); @Override int hashCode();  }
@Test public void equals() { RevisionVector rv1 = new RevisionVector(); RevisionVector rv2 = new RevisionVector(); assertEquals(rv1, rv2); Revision r11 = new Revision(1, 0, 1); rv1 = rv1.update(r11); assertNotEquals(rv1, rv2); rv2 = rv2.update(r11); assertEquals(rv1, rv2); Revision r12 = new Revision(1, 0, 2); rv1 = rv1.update(r12); assertNotEquals(rv1, rv2); rv2 = rv2.update(r12); assertEquals(rv1, rv2); assertEquals(rv1, rv1); assertNotEquals(rv1, null); assertNotEquals(rv1, new Object()); }