### Question:
Context implements Externalizable, Loggeable, Pausable, Cloneable { public void dump (PrintStream p, String indent) { String inner = indent + " "; p.println (indent + "<context>"); dumpMap (p, inner); p.println (indent + "</context>"); } Context(); void put(Object key, Object value); void put(Object key, Object value, boolean persist); void persist(Object key); void evict(Object key); T get(Object key); T get(Object key, T defValue); synchronized T remove(Object key); String getString(Object key); String getString(Object key, String defValue); void dump(PrintStream p, String indent); @SuppressWarnings("unchecked") synchronized T get(Object key, long timeout); void writeExternal(ObjectOutput out); void readExternal(ObjectInput in); @Override Context clone(); @Override boolean equals(Object o); @Override int hashCode(); synchronized Map<Object,Object> getMap(); synchronized LogEvent getLogEvent(); synchronized Profiler getProfiler(); synchronized Result getResult(); void log(Object msg); void checkPoint(String detail); void setPausedTransaction(PausedTransaction p); PausedTransaction getPausedTransaction(); PausedTransaction getPausedTransaction(long timeout); void setTimeout(long timeout); long getTimeout(); synchronized void resume(); boolean isTrace(); void setTrace(boolean trace);  }### Answer:
@Test public void testDump() throws Throwable { PrintStream printStream = new PrintStream(new ByteArrayOutputStream(), true); Object[] objects = new Object[2]; printStream.format(Locale.FRANCE, "testContextParam2", objects); PrintStream p = new PrintStream(printStream, true, "ISO-8859-1"); Context context = new Context(); context.dump(p, "testContextIndent"); }
@Test public void testDumpThrowsNullPointerException() throws Throwable { assertThrows(NullPointerException.class, () -> { Context context = new Context(); context.dump(null, "testContextIndent"); }); }