/guava/guava/src/com/google/common/collect/StandardTable.java
if ( rowKey == null) {
if ( ( rowKey == null ) || ( columnKey == null ) ) {
return getOrCreate(rowKey).put(columnKey, value); } @CanIgnoreReturnValue @Override @CheckForNull public V remove(@CheckForNull Object rowKey, @CheckForNull Object columnKey) { <extra_id_0> return null; } Map<C, V> map = safeGet(backingMap, rowKey); if (map == null) { return null; }