sonatype-lift[bot] commented on a change in pull request #438:
URL: https://github.com/apache/lucene/pull/438#discussion_r751055798
##########
File path: lucene/core/src/java/org/apache/lucene/util/SparseFixedBitSet.java
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@@ -530,4 +530,33 @@ public long ramBytesUsed() {
public String toString() {
return "SparseFixedBitSet(size=" + length + ",cardinality=~" +
approximateCardinality();
}
+
+ public static SparseFixedBitSet fromWords(int maxDoc, int base, long[]
words) {
+ assert (base & 63) == 0;
+ SparseFixedBitSet sparseFixedBitSet = new SparseFixedBitSet(maxDoc + 1);
+ final int baseWord = base >> 6;
+ final long[] indices = sparseFixedBitSet.indices;
+ final long[][] bits = sparseFixedBitSet.bits;
+ int nonZeroWordCounts = 0;
+ int lastIndex = -1;
+ int bitsPos = 0;
+ long[] currentBits = null;
+ for (int i = 0; i < words.length; i++) {
+ long word = words[i];
+ if (word != 0) {
+ int actualI = i + baseWord;
+ int index = actualI >> 6;
+ if (index != lastIndex) {
+ currentBits = bits[index] = new long[64];
+ bitsPos = 0;
+ lastIndex = index;
+ }
+ nonZeroWordCounts++;
+ indices[index] |= 1L << actualI;
+ currentBits[bitsPos++] = word;
Review comment:
*NULL_DEREFERENCE:* object `currentBits` last assigned on line 543
could be null and is dereferenced at line 556.
(at-me [in a reply](https://help.sonatype.com/lift/talking-to-lift) with
`help` or `ignore`)
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