Core: Upgrade to lucene-5.0.0-snapshot-1642891.

The only required change was to add a description to our index outputs.

Close #8743

Author: jpountz

pom.xml

@@ -32,7 +32,7 @@
 
     <properties>
         <lucene.version>5.0.0</lucene.version>
-        <lucene.maven.version>5.0.0-snapshot-1641343</lucene.maven.version>
+        <lucene.maven.version>5.0.0-snapshot-1642891</lucene.maven.version>
         <tests.jvms>auto</tests.jvms>
         <tests.shuffle>true</tests.shuffle>
         <tests.output>onerror</tests.output>
@@ -54,7 +54,7 @@
         </repository>
         <repository>
             <id>Lucene snapshots</id>
-            <url>https://download.elasticsearch.org/lucenesnapshots/1641343</url> 
+            <url>https://download.elasticsearch.org/lucenesnapshots/1642891</url>
         </repository>
     </repositories>
 

src/main/java/org/elasticsearch/gateway/local/state/meta/MetaDataStateFormat.java

@@ -98,7 +98,8 @@ public final void write(final T state, final String prefix, final long version,
         final Path tmpStatePath = stateLocation.resolve(fileName + ".tmp");
         final Path finalStatePath = stateLocation.resolve(fileName);
         try {
-            try (OutputStreamIndexOutput out = new OutputStreamIndexOutput(Files.newOutputStream(tmpStatePath), BUFFER_SIZE)) {
+            final String resourceDesc = "MetaDataStateFormat.write(path=\"" + tmpStatePath + "\")";
+            try (OutputStreamIndexOutput out = new OutputStreamIndexOutput(resourceDesc, Files.newOutputStream(tmpStatePath), BUFFER_SIZE)) {
                 CodecUtil.writeHeader(out, STATE_FILE_CODEC, STATE_FILE_VERSION);
                 out.writeInt(format.index());
                 out.writeLong(version);

src/main/java/org/elasticsearch/index/store/VerifyingIndexOutput.java

@@ -33,6 +33,7 @@ public abstract class VerifyingIndexOutput extends IndexOutput {
 
     /** Sole constructor */
     VerifyingIndexOutput(IndexOutput out) {
+        super("VerifyingIndexOutput(in=" + out + ")");
         this.out = out;
     }