public void concatFiles() throws IOException {
        if (getHeaderLine() != null) {
            Files.write(getTarget().toPath(), (getHeaderLine() + '\n').getBytes(StandardCharsets.UTF_8));
        }

        // To remove duplicate lines
        LinkedHashSet<String> uniqueLines = new LinkedHashSet<>();
        for (File f : getFiles()) {
            uniqueLines.addAll(Files.readAllLines(f.toPath(), StandardCharsets.UTF_8));
        }

        def gradleSettings = xml.component.find { it.'@name' == 'GradleSettings' }.option[0].GradleProjectSettings
        // Remove configured JVM option to force IntelliJ to use the project JDK for Gradle
        gradleSettings.option.findAll { it.'@name' == 'gradleJvm' }.each { it.parent().remove(it) }
      }
    }
  }

  tasks.register('buildDependencyArtifacts') {
    group = 'ide'

      // it. To preserve FIFO order and failure atomicity of rejected execution when the same
      // Runnable is executed more than once, allocate a wrapper that we know is safe to remove by
      // object identity.
      // A data structure that returned a removal handle from add() would allow eliminating this
      // allocation.
      submittedTask =
          new Runnable() {

 * maintained with a doubly linked list through the entries. All optional operations (put and
 * remove) are supported. Null keys and values are supported.
 *
 * <p>{@code containsKey(k)}, {@code put(k, v)} and {@code remove(k)} are all (expected and
 * amortized) constant time operations. Expected in the hashtable sense (depends on the hash

      <artifactId>maven-model</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-plugin-api</artifactId>
    </dependency>
    <!-- Remove the following dep to see how to remove Settings from the core -->
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-settings</artifactId>
    </dependency>
    <dependency>

### kubeadm
* Quite a few flags been renamed or removed.  Those options that are removed as flags can still be accessed via the config file.  Most notably this includes external etcd settings and the option for setting the cloud provider on the API server.  The [kubeadm reference documentation](https://kubernetes.io/docs/admin/kubeadm/) is up to date with the new flags.

### Other Deprecations

    Iterator<String> iterator = iterable.iterator();
    assertTrue(iterator.hasNext());
    assertEquals("a", iterator.next());
    assertThrows(UnsupportedOperationException.class, iterator::remove);
    assertFalse(iterator.hasNext());
    assertThrows(NoSuchElementException.class, iterator::next);
    assertThrows(IllegalStateException.class, iterable::iterator);
  }

        @Test
        @DisplayName("Should handle concurrent remove operations")
        void testConcurrentRemoveOperations() throws InterruptedException {
            // Given
            SmbTransport transport2 = mock(SmbTransport.class);
            doNothing().when(transportPool).removeTransport(any());

            // When - simulate concurrent removes

    assertFalse(entries.contains((Object) 4.5));
    assertFalse(entries.remove((Object) 4.5));
    assertFalse(entries.contains(Maps.immutableEntry("foo", singletonList(1))));
    assertFalse(entries.remove(Maps.immutableEntry("foo", singletonList(1))));
    assertFalse(entries.contains(Maps.immutableEntry("foo", new LinkedHashSet<>(asList(1, 2)))));
    assertFalse(entries.remove(Maps.immutableEntry("foo", new LinkedHashSet<>(asList(1, 2)))));

                String errMsg = "Missing Javadoc file for " + link + " in " + sourceFile.getName();
                if (link.startsWith("javadoc")) {
                    errMsg += " (You may need to remove the leading `javadoc` path component)";
                }
                errorsForFile.add(new Error(lineNumber, line, errMsg));
            }