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Fix some warnings reported by Findbugs. 

Although high-severity bugs were mostly static variables that were not final,
it also found potential NPEs and bugs like `x ^= x;` or equality checks on
objects that don't share a common interface.

Close #5571
This commit is contained in:
Adrien Grand 2014-03-27 11:43:35 +01:00
parent 31ecf1db98
commit 04c16b7ba5
28 changed files with 51 additions and 68 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/main/java/org/elasticsearch/action/admin/cluster/snapshots/create/CreateSnapshotRequest.java
View File

@ -42,9 +42,9 @@ import java.util.Map;
import static org.elasticsearch.action.ValidateActions.addValidationError;
import static org.elasticsearch.common.Strings.EMPTY_ARRAY;
import static org.elasticsearch.common.Strings.hasLength;
import static org.elasticsearch.common.settings.ImmutableSettings.Builder.EMPTY_SETTINGS;
import static org.elasticsearch.common.settings.ImmutableSettings.readSettingsFromStream;
import static org.elasticsearch.common.settings.ImmutableSettings.writeSettingsToStream;
import static org.elasticsearch.common.settings.ImmutableSettings.Builder.EMPTY_SETTINGS;
import static org.elasticsearch.common.xcontent.support.XContentMapValues.nodeBooleanValue;
/**
@ -104,13 +104,14 @@ public class CreateSnapshotRequest extends MasterNodeOperationRequest<CreateSnap
}
if (indices == null) {
validationException = addValidationError("indices is null", validationException);
}
} else {
for (String index : indices) {
if (index == null) {
validationException = addValidationError("index is null", validationException);
break;
}
}
}
if (indicesOptions == null) {
validationException = addValidationError("indicesOptions is null", validationException);
}

2
src/main/java/org/elasticsearch/action/get/TransportGetAction.java
View File

@ -42,7 +42,7 @@ import org.elasticsearch.transport.TransportService;
*/
public class TransportGetAction extends TransportShardSingleOperationAction<GetRequest, GetResponse> {
public static boolean REFRESH_FORCE = false;
public static final boolean REFRESH_FORCE = false;
private final IndicesService indicesService;
private final boolean realtime;

2
src/main/java/org/elasticsearch/action/support/master/MasterNodeOperationRequest.java
View File

@ -31,7 +31,7 @@ import java.io.IOException;
*/
public abstract class MasterNodeOperationRequest<T extends MasterNodeOperationRequest> extends ActionRequest<T> {
public static TimeValue DEFAULT_MASTER_NODE_TIMEOUT = TimeValue.timeValueSeconds(30);
public static final TimeValue DEFAULT_MASTER_NODE_TIMEOUT = TimeValue.timeValueSeconds(30);
protected TimeValue masterNodeTimeout = DEFAULT_MASTER_NODE_TIMEOUT;

2
src/main/java/org/elasticsearch/cluster/metadata/MetaData.java
View File

@ -1045,7 +1045,7 @@ public class MetaData implements Iterable<IndexMetaData> {
int customCount1 = 0;
for (ObjectObjectCursor<String, Custom> cursor : metaData1.customs) {
if (customFactories.get(cursor.key).isPersistent()) {
if (!cursor.equals(metaData2.custom(cursor.key))) return false;
if (!cursor.value.equals(metaData2.custom(cursor.key))) return false;
customCount1++;
}
}

25
src/main/java/org/elasticsearch/common/Names.java
View File

@ -24,10 +24,8 @@ import jsr166y.ThreadLocalRandom;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.Random;
/**
*
@ -62,29 +60,6 @@ public abstract class Names {
}
}
public static String randomNodeName(InputStream nodeNames) {
if (nodeNames == null) {
return null;
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(nodeNames, Charsets.UTF_8));
int numberOfNames = Integer.parseInt(reader.readLine());
int number = ((new Random().nextInt(numberOfNames)) % numberOfNames) - 2; // remove 2 for last line and first line
for (int i = 0; i < number; i++) {
reader.readLine();
}
return reader.readLine();
} catch (Exception e) {
return null;
} finally {
try {
nodeNames.close();
} catch (IOException e) {
// ignore
}
}
}
private Names() {
}

2
src/main/java/org/elasticsearch/common/geo/GeoDistance.java
View File

@ -212,7 +212,7 @@ public enum GeoDistance {
GeoPoint bottomRight();
}
public static AlwaysDistanceBoundingCheck ALWAYS_INSTANCE = new AlwaysDistanceBoundingCheck();
public static final AlwaysDistanceBoundingCheck ALWAYS_INSTANCE = new AlwaysDistanceBoundingCheck();
private static class AlwaysDistanceBoundingCheck implements DistanceBoundingCheck {
@Override

2
src/main/java/org/elasticsearch/common/lucene/Lucene.java
View File

@ -54,7 +54,7 @@ public class Lucene {
public static final int NO_DOC = -1;
public static ScoreDoc[] EMPTY_SCORE_DOCS = new ScoreDoc[0];
public static final ScoreDoc[] EMPTY_SCORE_DOCS = new ScoreDoc[0];
@SuppressWarnings("deprecation")
public static Version parseVersion(@Nullable String version, Version defaultVersion, ESLogger logger) {

2
src/main/java/org/elasticsearch/common/unit/DistanceUnit.java
View File

@ -51,7 +51,7 @@ public enum DistanceUnit {
// parsing would fail
METERS(1, "m", "meters");
public static DistanceUnit DEFAULT = METERS;
public static final DistanceUnit DEFAULT = METERS;
private double meters;
private final String[] names;

2
src/main/java/org/elasticsearch/discovery/zen/ping/ZenPing.java
View File

@ -50,7 +50,7 @@ public interface ZenPing extends LifecycleComponent<ZenPing> {
public static class PingResponse implements Streamable {
public static PingResponse[] EMPTY = new PingResponse[0];
public static final PingResponse[] EMPTY = new PingResponse[0];
private ClusterName clusterName;

2
src/main/java/org/elasticsearch/index/mapper/core/CompletionFieldMapper.java
View File

@ -91,7 +91,7 @@ public class CompletionFieldMapper extends AbstractFieldMapper<String> {
public static final String CONTEXT = "context";
}
public static Set<String> ALLOWED_CONTENT_FIELD_NAMES = Sets.newHashSet(Fields.CONTENT_FIELD_NAME_INPUT,
public static final Set<String> ALLOWED_CONTENT_FIELD_NAMES = Sets.newHashSet(Fields.CONTENT_FIELD_NAME_INPUT,
Fields.CONTENT_FIELD_NAME_OUTPUT, Fields.CONTENT_FIELD_NAME_PAYLOAD, Fields.CONTENT_FIELD_NAME_WEIGHT, Fields.CONTEXT);
public static class Builder extends AbstractFieldMapper.Builder<Builder, CompletionFieldMapper> {

3
src/main/java/org/elasticsearch/index/mapper/geo/GeoPointFieldMapper.java
View File

@ -21,6 +21,7 @@ package org.elasticsearch.index.mapper.geo;
import com.carrotsearch.hppc.ObjectOpenHashSet;
import com.carrotsearch.hppc.cursors.ObjectCursor;
import com.google.common.base.Objects;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.FieldType;
import org.apache.lucene.index.FieldInfo;
@ -636,7 +637,7 @@ public class GeoPointFieldMapper extends AbstractFieldMapper<GeoPoint> implement
if (this.normalizeLon != fieldMergeWith.normalizeLon) {
mergeContext.addConflict("mapper [" + names.fullName() + "] has different normalize_lon");
}
if (this.precisionStep != fieldMergeWith.precisionStep) {
if (!Objects.equal(this.precisionStep, fieldMergeWith.precisionStep)) {
mergeContext.addConflict("mapper [" + names.fullName() + "] has different precision_step");
}

6
src/main/java/org/elasticsearch/monitor/jvm/GcNames.java
View File

@ -23,9 +23,9 @@ package org.elasticsearch.monitor.jvm;
*/
public class GcNames {
public static String YOUNG = "young";
public static String OLD = "old";
public static String SURVIVOR = "survivor";
public static final String YOUNG = "young";
public static final String OLD = "old";
public static final String SURVIVOR = "survivor";
/**
* Resolves the GC type by its memory pool name ({@link java.lang.management.MemoryPoolMXBean#getName()}.

9
src/main/java/org/elasticsearch/rest/action/cat/RestAllocationAction.java
View File

@ -34,7 +34,6 @@ import org.elasticsearch.common.Table;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.unit.ByteSizeValue;
import org.elasticsearch.monitor.fs.FsStats;
import org.elasticsearch.rest.RestChannel;
import org.elasticsearch.rest.RestController;
import org.elasticsearch.rest.RestRequest;
@ -42,8 +41,6 @@ import org.elasticsearch.rest.XContentThrowableRestResponse;
import org.elasticsearch.rest.action.support.RestTable;
import java.io.IOException;
import java.util.Iterator;
import java.util.Locale;
import static org.elasticsearch.rest.RestRequest.Method.GET;
@ -163,9 +160,9 @@ public class RestAllocationAction extends AbstractCatAction {
table.addCell(avail < 0 ? null : new ByteSizeValue(avail));
table.addCell(nodeStats.getFs().getTotal().getTotal());
table.addCell(diskPercent < 0 ? null : diskPercent);
table.addCell(node == null ? null : node.getHostName());
table.addCell(node == null ? null : node.getHostAddress());
table.addCell(node == null ? "UNASSIGNED" : node.name());
table.addCell(node.getHostName());
table.addCell(node.getHostAddress());
table.addCell(node.name());
table.endRow();
}

2
src/main/java/org/elasticsearch/rest/support/RestUtils.java
View File

@ -31,7 +31,7 @@ import java.util.Map;
*/
public class RestUtils {
public static PathTrie.Decoder REST_DECODER = new PathTrie.Decoder() {
public static final PathTrie.Decoder REST_DECODER = new PathTrie.Decoder() {
@Override
public String decode(String value) {
return RestUtils.decodeComponent(value);

2
src/main/java/org/elasticsearch/search/aggregations/bucket/geogrid/InternalGeoHashGrid.java
View File

@ -45,7 +45,7 @@ public class InternalGeoHashGrid extends InternalAggregation implements GeoHashG
public static final Type TYPE = new Type("geohash_grid", "ghcells");
public static AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
public static final AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
@Override
public InternalGeoHashGrid readResult(StreamInput in) throws IOException {
InternalGeoHashGrid buckets = new InternalGeoHashGrid();

2
src/main/java/org/elasticsearch/search/aggregations/bucket/significant/SignificantLongTerms.java
View File

@ -41,7 +41,7 @@ public class SignificantLongTerms extends InternalSignificantTerms {
public static final Type TYPE = new Type("significant_terms", "siglterms");
public static AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
public static final AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
@Override
public SignificantLongTerms readResult(StreamInput in) throws IOException {
SignificantLongTerms buckets = new SignificantLongTerms();

2
src/main/java/org/elasticsearch/search/aggregations/bucket/significant/SignificantStringTerms.java
View File

@ -41,7 +41,7 @@ public class SignificantStringTerms extends InternalSignificantTerms {
public static final InternalAggregation.Type TYPE = new Type("significant_terms", "sigsterms");
public static AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
public static final AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
@Override
public SignificantStringTerms readResult(StreamInput in) throws IOException {
SignificantStringTerms buckets = new SignificantStringTerms();

2
src/main/java/org/elasticsearch/search/aggregations/bucket/significant/UnmappedSignificantTerms.java
View File

@ -38,7 +38,7 @@ public class UnmappedSignificantTerms extends InternalSignificantTerms {
private static final Collection<Bucket> BUCKETS = Collections.emptyList();
private static final Map<String, Bucket> BUCKETS_MAP = Collections.emptyMap();
public static AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
public static final AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
@Override
public UnmappedSignificantTerms readResult(StreamInput in) throws IOException {
UnmappedSignificantTerms buckets = new UnmappedSignificantTerms();

2
src/main/java/org/elasticsearch/search/aggregations/bucket/terms/DoubleTerms.java
View File

@ -44,7 +44,7 @@ public class DoubleTerms extends InternalTerms {
public static final Type TYPE = new Type("terms", "dterms");
public static AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
public static final AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
@Override
public DoubleTerms readResult(StreamInput in) throws IOException {
DoubleTerms buckets = new DoubleTerms();

2
src/main/java/org/elasticsearch/search/aggregations/bucket/terms/LongTerms.java
View File

@ -44,7 +44,7 @@ public class LongTerms extends InternalTerms {
public static final Type TYPE = new Type("terms", "lterms");
public static AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
public static final AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
@Override
public LongTerms readResult(StreamInput in) throws IOException {
LongTerms buckets = new LongTerms();

2
src/main/java/org/elasticsearch/search/aggregations/bucket/terms/StringTerms.java
View File

@ -41,7 +41,7 @@ public class StringTerms extends InternalTerms {
public static final InternalAggregation.Type TYPE = new Type("terms", "sterms");
public static AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
public static final AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
@Override
public StringTerms readResult(StreamInput in) throws IOException {
StringTerms buckets = new StringTerms();

2
src/main/java/org/elasticsearch/search/aggregations/bucket/terms/UnmappedTerms.java
View File

@ -38,7 +38,7 @@ public class UnmappedTerms extends InternalTerms {
private static final Collection<Bucket> BUCKETS = Collections.emptyList();
private static final Map<String, Bucket> BUCKETS_MAP = Collections.emptyMap();
public static AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
public static final AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
@Override
public UnmappedTerms readResult(StreamInput in) throws IOException {
UnmappedTerms buckets = new UnmappedTerms();

2
src/main/java/org/elasticsearch/search/controller/SearchPhaseController.java
View File

@ -56,7 +56,7 @@ import java.util.*;
*/
public class SearchPhaseController extends AbstractComponent {
public static Comparator<AtomicArray.Entry<? extends QuerySearchResultProvider>> QUERY_RESULT_ORDERING = new Comparator<AtomicArray.Entry<? extends QuerySearchResultProvider>>() {
public static final Comparator<AtomicArray.Entry<? extends QuerySearchResultProvider>> QUERY_RESULT_ORDERING = new Comparator<AtomicArray.Entry<? extends QuerySearchResultProvider>>() {
@Override
public int compare(AtomicArray.Entry<? extends QuerySearchResultProvider> o1, AtomicArray.Entry<? extends QuerySearchResultProvider> o2) {
int i = o1.value.shardTarget().index().compareTo(o2.value.shardTarget().index());

4
src/main/java/org/elasticsearch/search/suggest/SuggestUtils.java
View File

@ -44,8 +44,8 @@ import java.util.Comparator;
import java.util.Locale;
public final class SuggestUtils {
public static Comparator<SuggestWord> LUCENE_FREQUENCY = new SuggestWordFrequencyComparator();
public static Comparator<SuggestWord> SCORE_COMPARATOR = SuggestWordQueue.DEFAULT_COMPARATOR;
public static final Comparator<SuggestWord> LUCENE_FREQUENCY = new SuggestWordFrequencyComparator();
public static final Comparator<SuggestWord> SCORE_COMPARATOR = SuggestWordQueue.DEFAULT_COMPARATOR;
private SuggestUtils() {
// utils!!

9
src/main/java/org/elasticsearch/search/suggest/context/CategoryContextMapping.java
View File

@ -212,6 +212,15 @@ public class CategoryContextMapping extends ContextMapping {
return false;
}
@Override
public int hashCode() {
int hashCode = fieldName.hashCode();
for (CharSequence seq : defaultValues) {
hashCode = 31 * hashCode + seq.hashCode();
}
return hashCode;
}
private static class FieldConfig extends ContextConfig {
private final String fieldname;

2
src/main/java/org/elasticsearch/search/suggest/context/GeolocationContextMapping.java
View File

@ -575,7 +575,7 @@ public class GeolocationContextMapping extends ContextMapping {
protected TokenStream wrapTokenStream(Document doc, TokenStream stream) {
Collection<String> geohashes;
if(locations == null | locations.size() == 0) {
if (locations == null || locations.size() == 0) {
if(mapping.fieldName != null) {
IndexableField[] fields = doc.getFields(mapping.fieldName);
if(fields.length > 0) {

10
src/main/java/org/elasticsearch/search/suggest/term/TermSuggestion.java
View File

@ -18,9 +18,6 @@
*/
package org.elasticsearch.search.suggest.term;
import java.io.IOException;
import java.util.Comparator;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
@ -30,13 +27,16 @@ import org.elasticsearch.common.xcontent.XContentBuilderString;
import org.elasticsearch.search.suggest.Suggest.Suggestion;
import org.elasticsearch.search.suggest.Suggest.Suggestion.Entry.Option;
import java.io.IOException;
import java.util.Comparator;
/**
* The suggestion responses corresponding with the suggestions in the request.
*/
public class TermSuggestion extends Suggestion<TermSuggestion.Entry> {
public static Comparator<Suggestion.Entry.Option> SCORE = new Score();
public static Comparator<Suggestion.Entry.Option> FREQUENCY = new Frequency();
public static final Comparator<Suggestion.Entry.Option> SCORE = new Score();
public static final Comparator<Suggestion.Entry.Option> FREQUENCY = new Frequency();
// Same behaviour as comparators in suggest module, but for SuggestedWord
// Highest score first, then highest freq first, then lowest term first

2
src/main/java/org/elasticsearch/transport/ConnectTransportException.java
View File

@ -41,7 +41,7 @@ public class ConnectTransportException extends ActionTransportException {
}
public ConnectTransportException(DiscoveryNode node, String msg, String action, Throwable cause) {
super(node.name(), node.address(), action, msg, cause);
super(node == null ? null : node.name(), node == null ? null : node.address(), action, msg, cause);
this.node = node;
}