How to use

assertNoConcurrentModification

method

in

org.apache.logging.log4j.util.SortedArrayStringMap

@Override
public void clear() {
  if (keys == EMPTY) {
    return;
  }
  assertNotFrozen();
  assertNoConcurrentModification();
  Arrays.fill(keys, 0, size, null);
  Arrays.fill(values, 0, size, null);
  size = 0;
}

@Override
public void remove(final String key) {
  if (keys == EMPTY) {
    return;
  }
  final int index = indexOfKey(key);
  if (index >= 0) {
    assertNotFrozen();
    assertNoConcurrentModification();
    System.arraycopy(keys, index + 1, keys, index, size - 1 - index);
    System.arraycopy(values, index + 1, values, index, size - 1 - index);
    keys[size - 1] = null;
    values[size - 1] = null;
    size--;
  }
}

@Override
public void putValue(final String key, final Object value) {
  assertNotFrozen();
  assertNoConcurrentModification();
  if (keys == EMPTY) {
    inflateTable(threshold);
  }
  final int index = indexOfKey(key);
  if (index >= 0) {
    keys[index] = key;
    values[index] = value;
  } else { // not found, so insert.
    insertAt(~index, key, value);
  }
}

@Override
public void putAll(final ReadOnlyStringMap source) {
  if (source == this || source == null || source.isEmpty()) {
    // this.putAll(this) does not modify this collection
    // this.putAll(null) does not modify this collection
    // this.putAll(empty ReadOnlyStringMap) does not modify this collection
    return;
  }
  assertNotFrozen();
  assertNoConcurrentModification();
  if (source instanceof SortedArrayStringMap) {
    if (this.size == 0) {
      initFrom0((SortedArrayStringMap) source);
    } else {
      merge((SortedArrayStringMap) source);
    }
  } else if (source != null) {
    source.forEach(PUT_ALL, this);
  }
}

@Override
public void clear() {
  if (keys == EMPTY) {
    return;
  }
  assertNotFrozen();
  assertNoConcurrentModification();
  Arrays.fill(keys, 0, size, null);
  Arrays.fill(values, 0, size, null);
  size = 0;
}

@Override
public void remove(final String key) {
  if (keys == EMPTY) {
    return;
  }
  final int index = indexOfKey(key);
  if (index >= 0) {
    assertNotFrozen();
    assertNoConcurrentModification();
    System.arraycopy(keys, index + 1, keys, index, size - 1 - index);
    System.arraycopy(values, index + 1, values, index, size - 1 - index);
    keys[size - 1] = null;
    values[size - 1] = null;
    size--;
  }
}

@Override
public void putValue(final String key, final Object value) {
  assertNotFrozen();
  assertNoConcurrentModification();
  if (keys == EMPTY) {
    inflateTable(threshold);
  }
  final int index = indexOfKey(key);
  if (index >= 0) {
    keys[index] = key;
    values[index] = value;
  } else { // not found, so insert.
    insertAt(~index, key, value);
  }
}

@Override
public void putAll(final ReadOnlyStringMap source) {
  if (source == this || source == null || source.isEmpty()) {
    // this.putAll(this) does not modify this collection
    // this.putAll(null) does not modify this collection
    // this.putAll(empty ReadOnlyStringMap) does not modify this collection
    return;
  }
  assertNotFrozen();
  assertNoConcurrentModification();
  if (source instanceof SortedArrayStringMap) {
    if (this.size == 0) {
      initFrom0((SortedArrayStringMap) source);
    } else {
      merge((SortedArrayStringMap) source);
    }
  } else if (source != null) {
    source.forEach(PUT_ALL, this);
  }
}