<example>${fe:sdh(doc.similar_docs_hash)}</example>
  </function>

  <function>
    <description>Concatenate strings.</description>
    <name>join</name>
    <function-class>org.codelibs.fess.taglib.FessFunctions</function-class>
    <function-signature>java.lang.String join(java.lang.Object)</function-signature>
    <example>${fe:join(values)}</example>
  </function>

  <function>
    <description>

            Thread thread2 = new Thread(() -> transportPool.getSmbTransport(context, address, DEFAULT_PORT, true));

            thread1.start();
            thread2.start();
            thread1.join();
            thread2.join();

            // Then
            verify(transportPool, times(2)).getSmbTransport(any(), any(Address.class), anyInt(), anyBoolean());
        }

        @Test

    }

    private void assertArrays(final String[] expected, final String[] actual) {
        Arrays.sort(expected);
        Arrays.sort(actual);
        assertEquals(String.join(",", expected), String.join(",", actual));
    }

    assertThat(dispatcher.runningCalls())
      .containsExactlyInAnyOrder(a1, a2)
    assertThat(dispatcher.queuedCalls()).isEmpty()

    // Let the calls finish.
    waiting.countDown()
    t1.join()
    t2.join()

    // Now we should have 0 running calls and 0 queued calls.
    assertThat(dispatcher.runningCallsCount()).isEqualTo(0)
    assertThat(dispatcher.queuedCallsCount()).isEqualTo(0)

    testRule.beforeEach(extensionContext)

    val thread =
      object : Thread() {
        override fun run(): Unit = throw RuntimeException("boom!")
      }
    thread.start()
    thread.join()

    assertFailsWith<AssertionError> {
      testRule.afterEach(extensionContext)
    }.also { expected ->
      assertThat(expected).hasMessage("uncaught exception thrown during test")

    waiter1.interrupt();

    waiter1.join();
    waiter2.awaitWaiting(); // should still be blocked

    LockSupport.unpark(waiter2); // spurious wakeup
    waiter2.awaitWaiting(); // should eventually re-park

    future.set(null);
    waiter2.join();
  }

  public void testRemoveWaiter_polling() throws Exception {

            }
            //System.out.println("numComplete=" + t.numComplete + ",numThreads=" + t.numThreads);
        }

        for (ti = 0; ti < t.numThreads; ti++) {
            threads[ti].join();
            logger.info(threads[ti].getName());
        }

        logger.info("Test completed");
    }

        verify(out, timeout(1000)).write(payload, 0, 3);

        // Stop the thread by sending n = -1
        synchronized (w) {
            w.write(new byte[0], -1, out);
        }

        w.join(2000);
        assertFalse(w.isAlive(), "WriterThread should stop after -1 sentinel");
    }

    @Test
    @DisplayName("WriterThread surfaces SmbException via checkException")

            cmdList.add(StringUtils.join(webConfigIds, ','));
        }
        if (fileConfigIds != null && fileConfigIds.length > 0) {
            cmdList.add("-f");
            cmdList.add(StringUtils.join(fileConfigIds, ','));
        }
        if (dataConfigIds != null && dataConfigIds.length > 0) {
            cmdList.add("-d");
            cmdList.add(StringUtils.join(dataConfigIds, ','));
        }

  }

  public void testJoin() {
    assertThat(Ints.join(",", EMPTY)).isEmpty();
    assertThat(Ints.join(",", ARRAY1)).isEqualTo("1");
    assertThat(Ints.join(",", (int) 1, (int) 2)).isEqualTo("1,2");
    assertThat(Ints.join("", (int) 1, (int) 2, (int) 3)).isEqualTo("123");
  }

  public void testLexicographicalComparator() {
    List<int[]> ordered =