Review

Detector:	MuDetectRankComp_180222_ExcludeInstances
Target:	project ' lucene ' version 1918
Misuse:	misuse ' mudetect-9 '
Tags:

Misuse Details

Details about the known misuse from the MUBench dataset.

Description:	On line 296, `Iterator.next()` is invoked without prior check that the iterator has more elements. There is a second iterator who is checked and is apparently assumed to have as many elements. However, this is not ensured within the method.
Fix Description:
Violation Types:	missing/condition/value_or_state
In File:	org/apache/lucene/search/BooleanQuery.java
In Method:	scorer(IndexReader, boolean, boolean)
Code with Misuse:	class BooleanQuery.BooleanWeight { public Scorer scorer(IndexReader reader, boolean scoreDocsInOrder, boolean topScorer) throws IOException { List required = new ArrayList(); List prohibited = new ArrayList(); List optional = new ArrayList(); for (Iterator wIter = weights.iterator(), cIter = clauses.iterator(); wIter.hasNext();) { Weight w = (Weight) wIter.next(); BooleanClause c = (BooleanClause) cIter.next(); Scorer subScorer = w.scorer(reader, true, false); if (subScorer == null) { if (c.isRequired()) { return null; } } else if (c.isRequired()) { required.add(subScorer); } else if (c.isProhibited()) { prohibited.add(subScorer); } else { optional.add(subScorer); } } // Check if we can return a BooleanScorer scoreDocsInOrder \|= !allowDocsOutOfOrder; // until it is removed, factor in the static setting. if (!scoreDocsInOrder && topScorer && required.size() == 0 && prohibited.size() < 32) { return new BooleanScorer(similarity, minNrShouldMatch, optional, prohibited); } if (required.size() == 0 && optional.size() == 0) { // no required and optional clauses. return null; } else if (optional.size() < minNrShouldMatch) { // either >1 req scorer, or there are 0 req scorers and at least 1 // optional scorer. Therefore if there are not enough optional scorers // no documents will be matched by the query return null; } // Return a BooleanScorer2 return new BooleanScorer2(similarity, minNrShouldMatch, required, prohibited, optional); } }

Potential Hits

Findings of the detector that identify an anomaly in the same file and method as the known misuse.

Hit

Rank

Confidence

Confidence String

Pattern Examples

Pattern Support

Pattern Violation

Target Environment Mapping

244

Strategy	Rank	Desc
	-	filtered
Confidence	5	70 / (70 + 11)
DefectIndicator	17	(1 / 83 (Iterator)) * 70 / 3
O-E2MN	-	filtered
O-E2MN*PS	-	filtered
O-E2MNPSPU	-	filtered
O-E2MNPSPV	-	filtered
O-E2MNPSPV*PU	-	filtered
O-E2MNPSPV*VS	7	(overlap = 3.00 / 6.00)(pattern support = 70 / 70)(pattern violations = 1 / 11)*(violation support = 1 / 3)
O-E2MNPSPVVSPU	7	(overlap = 3.00 / 6.00)(pattern support = 70 / 70)(pattern violations = 1 / 11)(violation support = 1 / 3)(1 / 83 (Iterator))
O-E2MNPSVS	15	(overlap = 3.00 / 6.00)(pattern support = 70 / 70)(violation support = 1 / 3)
O-E2MNPSVS*PU	7	(overlap = 3.00 / 6.00)(pattern support = 70 / 70)(violation support = 1 / 3)*(1 / 83 (Iterator))
O-E2MN*PU	-	filtered
O-E2MN*PV	-	filtered
O-E2MNPVPU	-	filtered
O-E2MNPVVS	-	filtered
O-E2MNPVVS*PU	-	filtered
O-E2MN*VS	-	filtered
O-E2MNVSPU	-	filtered
PS	5	(pattern support = 70 / 70)
PS*PU	17	(pattern support = 70 / 70)*(1 / 83 (Iterator))
PS*PV	5	(pattern support = 70 / 70)*(pattern violations = 1 / 11)
PSPVPU	17	(pattern support = 70 / 70)(pattern violations = 1 / 11)(1 / 83 (Iterator))
PSPVVS	5	(pattern support = 70 / 70)(pattern violations = 1 / 11)(violation support = 1 / 3)
PSPVVS*PU	7	(pattern support = 70 / 70)(pattern violations = 1 / 11)(violation support = 1 / 3)*(1 / 83 (Iterator))
PS*VS	5	(pattern support = 70 / 70)*(violation support = 1 / 3)
PSVSPU	17	(pattern support = 70 / 70)(violation support = 1 / 3)(1 / 83 (Iterator))
PU	-	filtered
PV	-	filtered
PV*PU	-	filtered
PV*VS	20	(pattern violations = 1 / 11)*(violation support = 1 / 3)
PVVSPU	22	(pattern violations = 1 / 11)(violation support = 1 / 3)(1 / 83 (Iterator))
Rareness	5	1 - (3 / 70)
VS	93	(violation support = 1 / 3)
VS*PU	26	(violation support = 1 / 3)*(1 / 83 (Iterator))

lucene/1918/build/src/java/org/apache/lucene/search/Similarity.java#idf(Collection, Searcher)
lucene/1918/build/src/java/org/apache/lucene/index/SegmentReader.java#doCommit(Map)
lucene/1918/build/src/java/org/apache/lucene/search/FieldCacheImpl.java#getCacheEntries()
lucene/1918/build/src/java/org/apache/lucene/index/FieldInfos.java#addIndexed(Collection, boolean, boolean, boolean)
lucene/1918/build/src/java/org/apache/lucene/index/FieldsWriter.java#addDocument(Document)

427

Strategy	Rank	Desc
	345	()
Confidence	-	filtered
DefectIndicator	-	filtered
O-E2MN	232	(overlap = 3.00 / 4.00)
O-E2MN*PS	9	(overlap = 3.00 / 4.00)*(pattern support = 50 / 70)
O-E2MNPSPU	16	(overlap = 3.00 / 4.00)(pattern support = 50 / 70)(1 / 83 (Iterator))
O-E2MNPSPV	5	(overlap = 3.00 / 4.00)(pattern support = 50 / 70)(pattern violations = 1 / 9)
O-E2MNPSPV*PU	7	(overlap = 3.00 / 4.00)(pattern support = 50 / 70)(pattern violations = 1 / 9)*(1 / 83 (Iterator))
O-E2MNPSPV*VS	-	filtered
O-E2MNPSPVVSPU	-	filtered
O-E2MNPSVS	-	filtered
O-E2MNPSVS*PU	-	filtered
O-E2MN*PU	15	(overlap = 3.00 / 4.00)*(1 / 83 (Iterator))
O-E2MN*PV	6	(overlap = 3.00 / 4.00)*(pattern violations = 1 / 9)
O-E2MNPVPU	9	(overlap = 3.00 / 4.00)(pattern violations = 1 / 9)(1 / 83 (Iterator))
O-E2MNPVVS	20	(overlap = 3.00 / 4.00)(pattern violations = 1 / 9)(violation support = 1 / 4)
O-E2MNPVVS*PU	15	(overlap = 3.00 / 4.00)(pattern violations = 1 / 9)(violation support = 1 / 4)*(1 / 83 (Iterator))
O-E2MN*VS	99	(overlap = 3.00 / 4.00)*(violation support = 1 / 4)
O-E2MNVSPU	28	(overlap = 3.00 / 4.00)(violation support = 1 / 4)(1 / 83 (Iterator))
PS	-	filtered
PS*PU	-	filtered
PS*PV	-	filtered
PSPVPU	-	filtered
PSPVVS	-	filtered
PSPVVS*PU	-	filtered
PS*VS	-	filtered
PSVSPU	-	filtered
PU	17	(1 / 83 (Iterator))
PV	7	(pattern violations = 1 / 9)
PV*PU	15	(pattern violations = 1 / 9)*(1 / 83 (Iterator))
PV*VS	-	filtered
PVVSPU	-	filtered
Rareness	-	filtered
VS	-	filtered
VS*PU	-	filtered

lucene/1918/build/src/java/org/apache/lucene/search/BooleanQuery.java#explain(IndexReader, int)
lucene/1918/build/src/java/org/apache/lucene/index/IndexWriter.java#finishMerges(boolean)
lucene/1918/build/src/java/org/apache/lucene/search/spans/SpanOrQuery.java#getSpans(IndexReader)
lucene/1918/build/src/java/org/apache/lucene/document/Document.java#removeFields(String)
lucene/1918/build/src/java/org/apache/lucene/search/DisjunctionMaxQuery.java#scorer(IndexReader, boolean, boolean)

433

Strategy	Rank	Desc
	346	()
Confidence	248	17 / (17 + 118)
DefectIndicator	273	(1 / 577 (Collection)) * 17 / 29
O-E2MN	203	(overlap = 9.00 / 11.00)
O-E2MN*PS	73	(overlap = 9.00 / 11.00)*(pattern support = 17 / 70)
O-E2MNPSPU	169	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(1 / 577 (Collection))
O-E2MNPSPV	163	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)
O-E2MNPSPV*PU	165	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)*(1 / 577 (Collection))
O-E2MNPSPV*VS	262	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)*(violation support = 1 / 29)
O-E2MNPSPVVSPU	269	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)(violation support = 1 / 29)(1 / 577 (Collection))
O-E2MNPSVS	252	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(violation support = 1 / 29)
O-E2MNPSVS*PU	258	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(violation support = 1 / 29)*(1 / 577 (Collection))
O-E2MN*PU	234	(overlap = 9.00 / 11.00)*(1 / 577 (Collection))
O-E2MN*PV	209	(overlap = 9.00 / 11.00)*(pattern violations = 1 / 118)
O-E2MNPVPU	183	(overlap = 9.00 / 11.00)(pattern violations = 1 / 118)(1 / 577 (Collection))
O-E2MNPVVS	263	(overlap = 9.00 / 11.00)(pattern violations = 1 / 118)(violation support = 1 / 29)
O-E2MNPVVS*PU	269	(overlap = 9.00 / 11.00)(pattern violations = 1 / 118)(violation support = 1 / 29)*(1 / 577 (Collection))
O-E2MN*VS	277	(overlap = 9.00 / 11.00)*(violation support = 1 / 29)
O-E2MNVSPU	269	(overlap = 9.00 / 11.00)(violation support = 1 / 29)(1 / 577 (Collection))
PS	116	(pattern support = 17 / 70)
PS*PU	212	(pattern support = 17 / 70)*(1 / 577 (Collection))
PS*PV	248	(pattern support = 17 / 70)*(pattern violations = 1 / 118)
PSPVPU	215	(pattern support = 17 / 70)(pattern violations = 1 / 118)(1 / 577 (Collection))
PSPVVS	264	(pattern support = 17 / 70)(pattern violations = 1 / 118)(violation support = 1 / 29)
PSPVVS*PU	268	(pattern support = 17 / 70)(pattern violations = 1 / 118)(violation support = 1 / 29)*(1 / 577 (Collection))
PS*VS	285	(pattern support = 17 / 70)*(violation support = 1 / 29)
PSVSPU	273	(pattern support = 17 / 70)(violation support = 1 / 29)(1 / 577 (Collection))
PU	289	(1 / 577 (Collection))
PV	355	(pattern violations = 1 / 118)
PV*PU	235	(pattern violations = 1 / 118)*(1 / 577 (Collection))
PV*VS	275	(pattern violations = 1 / 118)*(violation support = 1 / 29)
PVVSPU	271	(pattern violations = 1 / 118)(violation support = 1 / 29)(1 / 577 (Collection))
Rareness	285	1 - (29 / 17)
VS	285	(violation support = 1 / 29)
VS*PU	290	(violation support = 1 / 29)*(1 / 577 (Collection))

lucene/1918/build/src/java/org/apache/lucene/index/IndexWriter.java#clear(SegmentInfos)
lucene/1918/build/src/java/org/apache/lucene/index/IndexWriter.java#registerMerge(OneMerge)
lucene/1918/build/src/java/org/apache/lucene/index/LogMergePolicy.java#findMerges(SegmentInfos)
lucene/1918/build/src/java/org/apache/lucene/index/IndexWriter.java#mergeFinish(OneMerge)
lucene/1918/build/src/java/org/apache/lucene/index/LogMergePolicy.java#findMergesToExpungeDeletes(SegmentInfos)

511

Strategy	Rank	Desc
	347	()
Confidence	250	17 / (17 + 118)
DefectIndicator	275	(1 / 577 (Collection)) * 17 / 29
O-E2MN	205	(overlap = 9.00 / 11.00)
O-E2MN*PS	75	(overlap = 9.00 / 11.00)*(pattern support = 17 / 70)
O-E2MNPSPU	171	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(1 / 577 (Collection))
O-E2MNPSPV	165	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)
O-E2MNPSPV*PU	167	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)*(1 / 577 (Collection))
O-E2MNPSPV*VS	264	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)*(violation support = 1 / 29)
O-E2MNPSPVVSPU	271	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)(violation support = 1 / 29)(1 / 577 (Collection))
O-E2MNPSVS	254	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(violation support = 1 / 29)
O-E2MNPSVS*PU	260	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(violation support = 1 / 29)*(1 / 577 (Collection))
O-E2MN*PU	236	(overlap = 9.00 / 11.00)*(1 / 577 (Collection))
O-E2MN*PV	211	(overlap = 9.00 / 11.00)*(pattern violations = 1 / 118)
O-E2MNPVPU	185	(overlap = 9.00 / 11.00)(pattern violations = 1 / 118)(1 / 577 (Collection))
O-E2MNPVVS	265	(overlap = 9.00 / 11.00)(pattern violations = 1 / 118)(violation support = 1 / 29)
O-E2MNPVVS*PU	271	(overlap = 9.00 / 11.00)(pattern violations = 1 / 118)(violation support = 1 / 29)*(1 / 577 (Collection))
O-E2MN*VS	279	(overlap = 9.00 / 11.00)*(violation support = 1 / 29)
O-E2MNVSPU	271	(overlap = 9.00 / 11.00)(violation support = 1 / 29)(1 / 577 (Collection))
PS	118	(pattern support = 17 / 70)
PS*PU	214	(pattern support = 17 / 70)*(1 / 577 (Collection))
PS*PV	250	(pattern support = 17 / 70)*(pattern violations = 1 / 118)
PSPVPU	217	(pattern support = 17 / 70)(pattern violations = 1 / 118)(1 / 577 (Collection))
PSPVVS	266	(pattern support = 17 / 70)(pattern violations = 1 / 118)(violation support = 1 / 29)
PSPVVS*PU	270	(pattern support = 17 / 70)(pattern violations = 1 / 118)(violation support = 1 / 29)*(1 / 577 (Collection))
PS*VS	287	(pattern support = 17 / 70)*(violation support = 1 / 29)
PSVSPU	275	(pattern support = 17 / 70)(violation support = 1 / 29)(1 / 577 (Collection))
PU	290	(1 / 577 (Collection))
PV	357	(pattern violations = 1 / 118)
PV*PU	237	(pattern violations = 1 / 118)*(1 / 577 (Collection))
PV*VS	277	(pattern violations = 1 / 118)*(violation support = 1 / 29)
PVVSPU	273	(pattern violations = 1 / 118)(violation support = 1 / 29)(1 / 577 (Collection))
Rareness	287	1 - (29 / 17)
VS	287	(violation support = 1 / 29)
VS*PU	292	(violation support = 1 / 29)*(1 / 577 (Collection))

lucene/1918/build/src/java/org/apache/lucene/index/IndexWriter.java#clear(SegmentInfos)
lucene/1918/build/src/java/org/apache/lucene/index/IndexWriter.java#registerMerge(OneMerge)
lucene/1918/build/src/java/org/apache/lucene/index/LogMergePolicy.java#findMerges(SegmentInfos)
lucene/1918/build/src/java/org/apache/lucene/index/IndexWriter.java#mergeFinish(OneMerge)
lucene/1918/build/src/java/org/apache/lucene/index/LogMergePolicy.java#findMergesToExpungeDeletes(SegmentInfos)

792

Strategy	Rank	Desc
	344	()
Confidence	247	17 / (17 + 118)
DefectIndicator	272	(1 / 577 (Collection)) * 17 / 29
O-E2MN	202	(overlap = 9.00 / 11.00)
O-E2MN*PS	72	(overlap = 9.00 / 11.00)*(pattern support = 17 / 70)
O-E2MNPSPU	168	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(1 / 577 (Collection))
O-E2MNPSPV	162	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)
O-E2MNPSPV*PU	164	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)*(1 / 577 (Collection))
O-E2MNPSPV*VS	261	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)*(violation support = 1 / 29)
O-E2MNPSPVVSPU	268	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)(violation support = 1 / 29)(1 / 577 (Collection))
O-E2MNPSVS	251	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(violation support = 1 / 29)
O-E2MNPSVS*PU	257	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(violation support = 1 / 29)*(1 / 577 (Collection))
O-E2MN*PU	233	(overlap = 9.00 / 11.00)*(1 / 577 (Collection))
O-E2MN*PV	208	(overlap = 9.00 / 11.00)*(pattern violations = 1 / 118)
O-E2MNPVPU	182	(overlap = 9.00 / 11.00)(pattern violations = 1 / 118)(1 / 577 (Collection))
O-E2MNPVVS	262	(overlap = 9.00 / 11.00)(pattern violations = 1 / 118)(violation support = 1 / 29)
O-E2MNPVVS*PU	268	(overlap = 9.00 / 11.00)(pattern violations = 1 / 118)(violation support = 1 / 29)*(1 / 577 (Collection))
O-E2MN*VS	276	(overlap = 9.00 / 11.00)*(violation support = 1 / 29)
O-E2MNVSPU	268	(overlap = 9.00 / 11.00)(violation support = 1 / 29)(1 / 577 (Collection))
PS	115	(pattern support = 17 / 70)
PS*PU	211	(pattern support = 17 / 70)*(1 / 577 (Collection))
PS*PV	247	(pattern support = 17 / 70)*(pattern violations = 1 / 118)
PSPVPU	214	(pattern support = 17 / 70)(pattern violations = 1 / 118)(1 / 577 (Collection))
PSPVVS	263	(pattern support = 17 / 70)(pattern violations = 1 / 118)(violation support = 1 / 29)
PSPVVS*PU	267	(pattern support = 17 / 70)(pattern violations = 1 / 118)(violation support = 1 / 29)*(1 / 577 (Collection))
PS*VS	284	(pattern support = 17 / 70)*(violation support = 1 / 29)
PSVSPU	272	(pattern support = 17 / 70)(violation support = 1 / 29)(1 / 577 (Collection))
PU	286	(1 / 577 (Collection))
PV	353	(pattern violations = 1 / 118)
PV*PU	234	(pattern violations = 1 / 118)*(1 / 577 (Collection))
PV*VS	274	(pattern violations = 1 / 118)*(violation support = 1 / 29)
PVVSPU	270	(pattern violations = 1 / 118)(violation support = 1 / 29)(1 / 577 (Collection))
Rareness	284	1 - (29 / 17)
VS	284	(violation support = 1 / 29)
VS*PU	289	(violation support = 1 / 29)*(1 / 577 (Collection))

lucene/1918/build/src/java/org/apache/lucene/index/IndexWriter.java#clear(SegmentInfos)
lucene/1918/build/src/java/org/apache/lucene/index/IndexWriter.java#registerMerge(OneMerge)
lucene/1918/build/src/java/org/apache/lucene/index/LogMergePolicy.java#findMerges(SegmentInfos)
lucene/1918/build/src/java/org/apache/lucene/index/IndexWriter.java#mergeFinish(OneMerge)
lucene/1918/build/src/java/org/apache/lucene/index/LogMergePolicy.java#findMergesToExpungeDeletes(SegmentInfos)

933

Strategy	Rank	Desc
	348	()
Confidence	249	17 / (17 + 118)
DefectIndicator	274	(1 / 577 (Collection)) * 17 / 29
O-E2MN	204	(overlap = 9.00 / 11.00)
O-E2MN*PS	74	(overlap = 9.00 / 11.00)*(pattern support = 17 / 70)
O-E2MNPSPU	170	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(1 / 577 (Collection))
O-E2MNPSPV	164	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)
O-E2MNPSPV*PU	166	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)*(1 / 577 (Collection))
O-E2MNPSPV*VS	263	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)*(violation support = 1 / 29)
O-E2MNPSPVVSPU	270	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)(violation support = 1 / 29)(1 / 577 (Collection))
O-E2MNPSVS	253	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(violation support = 1 / 29)
O-E2MNPSVS*PU	259	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(violation support = 1 / 29)*(1 / 577 (Collection))
O-E2MN*PU	235	(overlap = 9.00 / 11.00)*(1 / 577 (Collection))
O-E2MN*PV	210	(overlap = 9.00 / 11.00)*(pattern violations = 1 / 118)
O-E2MNPVPU	184	(overlap = 9.00 / 11.00)(pattern violations = 1 / 118)(1 / 577 (Collection))
O-E2MNPVVS	264	(overlap = 9.00 / 11.00)(pattern violations = 1 / 118)(violation support = 1 / 29)
O-E2MNPVVS*PU	270	(overlap = 9.00 / 11.00)(pattern violations = 1 / 118)(violation support = 1 / 29)*(1 / 577 (Collection))
O-E2MN*VS	278	(overlap = 9.00 / 11.00)*(violation support = 1 / 29)
O-E2MNVSPU	270	(overlap = 9.00 / 11.00)(violation support = 1 / 29)(1 / 577 (Collection))
PS	117	(pattern support = 17 / 70)
PS*PU	213	(pattern support = 17 / 70)*(1 / 577 (Collection))
PS*PV	249	(pattern support = 17 / 70)*(pattern violations = 1 / 118)
PSPVPU	216	(pattern support = 17 / 70)(pattern violations = 1 / 118)(1 / 577 (Collection))
PSPVVS	265	(pattern support = 17 / 70)(pattern violations = 1 / 118)(violation support = 1 / 29)
PSPVVS*PU	269	(pattern support = 17 / 70)(pattern violations = 1 / 118)(violation support = 1 / 29)*(1 / 577 (Collection))
PS*VS	286	(pattern support = 17 / 70)*(violation support = 1 / 29)
PSVSPU	274	(pattern support = 17 / 70)(violation support = 1 / 29)(1 / 577 (Collection))
PU	288	(1 / 577 (Collection))
PV	356	(pattern violations = 1 / 118)
PV*PU	236	(pattern violations = 1 / 118)*(1 / 577 (Collection))
PV*VS	276	(pattern violations = 1 / 118)*(violation support = 1 / 29)
PVVSPU	272	(pattern violations = 1 / 118)(violation support = 1 / 29)(1 / 577 (Collection))
Rareness	286	1 - (29 / 17)
VS	286	(violation support = 1 / 29)
VS*PU	291	(violation support = 1 / 29)*(1 / 577 (Collection))

lucene/1918/build/src/java/org/apache/lucene/index/IndexWriter.java#clear(SegmentInfos)
lucene/1918/build/src/java/org/apache/lucene/index/IndexWriter.java#registerMerge(OneMerge)
lucene/1918/build/src/java/org/apache/lucene/index/LogMergePolicy.java#findMerges(SegmentInfos)
lucene/1918/build/src/java/org/apache/lucene/index/IndexWriter.java#mergeFinish(OneMerge)
lucene/1918/build/src/java/org/apache/lucene/index/LogMergePolicy.java#findMergesToExpungeDeletes(SegmentInfos)

1156

Strategy	Rank	Desc
	349	()
Confidence	251	17 / (17 + 118)
DefectIndicator	276	(1 / 577 (Collection)) * 17 / 29
O-E2MN	206	(overlap = 9.00 / 11.00)
O-E2MN*PS	76	(overlap = 9.00 / 11.00)*(pattern support = 17 / 70)
O-E2MNPSPU	172	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(1 / 577 (Collection))
O-E2MNPSPV	166	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)
O-E2MNPSPV*PU	168	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)*(1 / 577 (Collection))
O-E2MNPSPV*VS	265	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)*(violation support = 1 / 29)
O-E2MNPSPVVSPU	272	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(pattern violations = 1 / 118)(violation support = 1 / 29)(1 / 577 (Collection))
O-E2MNPSVS	255	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(violation support = 1 / 29)
O-E2MNPSVS*PU	261	(overlap = 9.00 / 11.00)(pattern support = 17 / 70)(violation support = 1 / 29)*(1 / 577 (Collection))
O-E2MN*PU	237	(overlap = 9.00 / 11.00)*(1 / 577 (Collection))
O-E2MN*PV	212	(overlap = 9.00 / 11.00)*(pattern violations = 1 / 118)
O-E2MNPVPU	186	(overlap = 9.00 / 11.00)(pattern violations = 1 / 118)(1 / 577 (Collection))
O-E2MNPVVS	266	(overlap = 9.00 / 11.00)(pattern violations = 1 / 118)(violation support = 1 / 29)
O-E2MNPVVS*PU	272	(overlap = 9.00 / 11.00)(pattern violations = 1 / 118)(violation support = 1 / 29)*(1 / 577 (Collection))
O-E2MN*VS	280	(overlap = 9.00 / 11.00)*(violation support = 1 / 29)
O-E2MNVSPU	272	(overlap = 9.00 / 11.00)(violation support = 1 / 29)(1 / 577 (Collection))
PS	119	(pattern support = 17 / 70)
PS*PU	215	(pattern support = 17 / 70)*(1 / 577 (Collection))
PS*PV	251	(pattern support = 17 / 70)*(pattern violations = 1 / 118)
PSPVPU	218	(pattern support = 17 / 70)(pattern violations = 1 / 118)(1 / 577 (Collection))
PSPVVS	267	(pattern support = 17 / 70)(pattern violations = 1 / 118)(violation support = 1 / 29)
PSPVVS*PU	271	(pattern support = 17 / 70)(pattern violations = 1 / 118)(violation support = 1 / 29)*(1 / 577 (Collection))
PS*VS	288	(pattern support = 17 / 70)*(violation support = 1 / 29)
PSVSPU	276	(pattern support = 17 / 70)(violation support = 1 / 29)(1 / 577 (Collection))
PU	287	(1 / 577 (Collection))
PV	354	(pattern violations = 1 / 118)
PV*PU	238	(pattern violations = 1 / 118)*(1 / 577 (Collection))
PV*VS	278	(pattern violations = 1 / 118)*(violation support = 1 / 29)
PVVSPU	274	(pattern violations = 1 / 118)(violation support = 1 / 29)(1 / 577 (Collection))
Rareness	288	1 - (29 / 17)
VS	288	(violation support = 1 / 29)
VS*PU	293	(violation support = 1 / 29)*(1 / 577 (Collection))

lucene/1918/build/src/java/org/apache/lucene/index/IndexWriter.java#clear(SegmentInfos)
lucene/1918/build/src/java/org/apache/lucene/index/IndexWriter.java#registerMerge(OneMerge)
lucene/1918/build/src/java/org/apache/lucene/index/LogMergePolicy.java#findMerges(SegmentInfos)
lucene/1918/build/src/java/org/apache/lucene/index/IndexWriter.java#mergeFinish(OneMerge)
lucene/1918/build/src/java/org/apache/lucene/index/LogMergePolicy.java#findMergesToExpungeDeletes(SegmentInfos)