{ return toString(selfDescribing); } @Override protected void append(String str) { try { out.append(str); } catch (IOException e) { throw new RuntimeException("Could not write description", e); } } @Override protected void append(char c) { try { out.append(c); } catch (IOException e) { throw new RuntimeException("Could not write description", e); } } /** * Returns the description as a string. */ @Override public String toString() { return out.toString(); } } org/hamcrest/TypeSafeDiagnosingMa.java...