Revert "Update Apache Lucene to 9.12.0 (opensearch-project#15333)"

This reverts commit 146b0f7.
finnegancarroll · Oct 8, 2024 · 6524bdd · 6524bdd
1 parent 958f8c7
commit 6524bdd
Show file tree

Hide file tree

Showing 84 changed files with 148 additions and 231 deletions.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -35,7 +35,6 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Bump `dnsjava:dnsjava` from 3.6.1 to 3.6.2 ([#16041](https://github.com/opensearch-project/OpenSearch/pull/16041))
 - Bump `com.maxmind.geoip2:geoip2` from 4.2.0 to 4.2.1 ([#16042](https://github.com/opensearch-project/OpenSearch/pull/16042))
 - Bump `com.maxmind.db:maxmind-db` from 3.1.0 to 3.1.1 ([#16137](https://github.com/opensearch-project/OpenSearch/pull/16137))
-- Bump Apache lucene from 9.11.1 to 9.12.0 ([#15333](https://github.com/opensearch-project/OpenSearch/pull/15333))
 - Bump `com.azure:azure-core-http-netty` from 1.15.3 to 1.15.4 ([#16133](https://github.com/opensearch-project/OpenSearch/pull/16133))
 - Bump `org.jline:jline` from 3.26.3 to 3.27.0 ([#16135](https://github.com/opensearch-project/OpenSearch/pull/16135))
 - Bump `netty` from 4.1.112.Final to 4.1.114.Final ([#16182](https://github.com/opensearch-project/OpenSearch/pull/16182))

diff --git a/buildSrc/version.properties b/buildSrc/version.properties
@@ -1,5 +1,5 @@
 opensearch        = 3.0.0
-lucene            = 9.12.0
+lucene            = 9.12.0-snapshot-847316d
 
 bundled_jdk_vendor = adoptium
 bundled_jdk = 21.0.4+7

diff --git a/libs/core/licenses/lucene-core-9.12.0-snapshot-847316d.jar.sha1 b/libs/core/licenses/lucene-core-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+51ff4940eb1024184bbaa5dae39695d2392c5bab
diff --git a/libs/core/licenses/lucene-core-9.12.0.jar.sha1 b/libs/core/licenses/lucene-core-9.12.0.jar.sha1
diff --git a/modules/lang-expression/licenses/lucene-expressions-9.12.0-snapshot-847316d.jar.sha1 b/modules/lang-expression/licenses/lucene-expressions-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+b866103bbaca4141c152deca9252bd137026dafc
diff --git a/modules/lang-expression/licenses/lucene-expressions-9.12.0.jar.sha1 b/modules/lang-expression/licenses/lucene-expressions-9.12.0.jar.sha1
diff --git a/plugins/analysis-icu/licenses/lucene-analysis-icu-9.12.0-snapshot-847316d.jar.sha1 b/plugins/analysis-icu/licenses/lucene-analysis-icu-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+04436942995a4952ce5654126dfb767d6335674e
diff --git a/plugins/analysis-icu/licenses/lucene-analysis-icu-9.12.0.jar.sha1 b/plugins/analysis-icu/licenses/lucene-analysis-icu-9.12.0.jar.sha1
diff --git a/plugins/analysis-kuromoji/licenses/lucene-analysis-kuromoji-9.12.0-snapshot-847316d.jar.sha1 b/plugins/analysis-kuromoji/licenses/lucene-analysis-kuromoji-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+85918e24fc3bf63fcd953807ab2eb3fa55c987c2
diff --git a/plugins/analysis-kuromoji/licenses/lucene-analysis-kuromoji-9.12.0.jar.sha1 b/plugins/analysis-kuromoji/licenses/lucene-analysis-kuromoji-9.12.0.jar.sha1
diff --git a/plugins/analysis-nori/licenses/lucene-analysis-nori-9.12.0-snapshot-847316d.jar.sha1 b/plugins/analysis-nori/licenses/lucene-analysis-nori-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+15e425e9cc0ab9d65fac3c919199a24dfa3631eb
diff --git a/plugins/analysis-nori/licenses/lucene-analysis-nori-9.12.0.jar.sha1 b/plugins/analysis-nori/licenses/lucene-analysis-nori-9.12.0.jar.sha1
diff --git a/plugins/analysis-phonetic/licenses/lucene-analysis-phonetic-9.12.0-snapshot-847316d.jar.sha1 b/plugins/analysis-phonetic/licenses/lucene-analysis-phonetic-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+3d16c18348e7d4a00cb83100c43f3e21239d224e
diff --git a/plugins/analysis-phonetic/licenses/lucene-analysis-phonetic-9.12.0.jar.sha1 b/plugins/analysis-phonetic/licenses/lucene-analysis-phonetic-9.12.0.jar.sha1
diff --git a/plugins/analysis-smartcn/licenses/lucene-analysis-smartcn-9.12.0-snapshot-847316d.jar.sha1 b/plugins/analysis-smartcn/licenses/lucene-analysis-smartcn-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+2ef6d9dffc6816d3cd04a54fe1ee43e13f850a37
diff --git a/plugins/analysis-smartcn/licenses/lucene-analysis-smartcn-9.12.0.jar.sha1 b/plugins/analysis-smartcn/licenses/lucene-analysis-smartcn-9.12.0.jar.sha1
diff --git a/plugins/analysis-stempel/licenses/lucene-analysis-stempel-9.12.0-snapshot-847316d.jar.sha1 b/plugins/analysis-stempel/licenses/lucene-analysis-stempel-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+e72b2262f5393d9ff255fb901297d4e6790e9102
diff --git a/plugins/analysis-stempel/licenses/lucene-analysis-stempel-9.12.0.jar.sha1 b/plugins/analysis-stempel/licenses/lucene-analysis-stempel-9.12.0.jar.sha1
diff --git a/...s/analysis-ukrainian/licenses/lucene-analysis-morfologik-9.12.0-snapshot-847316d.jar.sha1 b/...s/analysis-ukrainian/licenses/lucene-analysis-morfologik-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+416ac44b2e76592c9e85338798cae93c3cf5475e
diff --git a/plugins/analysis-ukrainian/licenses/lucene-analysis-morfologik-9.12.0.jar.sha1 b/plugins/analysis-ukrainian/licenses/lucene-analysis-morfologik-9.12.0.jar.sha1
diff --git a/...main/java/org/opensearch/plugin/correlation/core/index/codec/CorrelationCodecVersion.java b/...main/java/org/opensearch/plugin/correlation/core/index/codec/CorrelationCodecVersion.java
@@ -8,8 +8,8 @@
 
 package org.opensearch.plugin.correlation.core.index.codec;
 
-import org.apache.lucene.backward_codecs.lucene99.Lucene99Codec;
 import org.apache.lucene.codecs.Codec;
+import org.apache.lucene.codecs.lucene99.Lucene99Codec;
 import org.opensearch.index.mapper.MapperService;
 import org.opensearch.plugin.correlation.core.index.codec.correlation990.CorrelationCodec;
 import org.opensearch.plugin.correlation.core.index.codec.correlation990.PerFieldCorrelationVectorsFormat;

diff --git a/server/licenses/lucene-analysis-common-9.12.0-snapshot-847316d.jar.sha1 b/server/licenses/lucene-analysis-common-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+7e282aab7388efc911348f1eacd90e661580dda7
diff --git a/server/licenses/lucene-analysis-common-9.12.0.jar.sha1 b/server/licenses/lucene-analysis-common-9.12.0.jar.sha1
diff --git a/server/licenses/lucene-backward-codecs-9.12.0-snapshot-847316d.jar.sha1 b/server/licenses/lucene-backward-codecs-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+69e59ba4bed4c58836d2727d72b7f0095d2dcb92
diff --git a/server/licenses/lucene-backward-codecs-9.12.0.jar.sha1 b/server/licenses/lucene-backward-codecs-9.12.0.jar.sha1
diff --git a/server/licenses/lucene-core-9.12.0-snapshot-847316d.jar.sha1 b/server/licenses/lucene-core-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+51ff4940eb1024184bbaa5dae39695d2392c5bab
diff --git a/server/licenses/lucene-core-9.12.0.jar.sha1 b/server/licenses/lucene-core-9.12.0.jar.sha1
diff --git a/server/licenses/lucene-grouping-9.12.0-snapshot-847316d.jar.sha1 b/server/licenses/lucene-grouping-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+5847a7d47f13ecb7f039fb9adf6f3b8e4bddde77
diff --git a/server/licenses/lucene-grouping-9.12.0.jar.sha1 b/server/licenses/lucene-grouping-9.12.0.jar.sha1
diff --git a/server/licenses/lucene-highlighter-9.12.0-snapshot-847316d.jar.sha1 b/server/licenses/lucene-highlighter-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+7cc0a26777a479f06fbcfae7abc23e784e1a00dc
diff --git a/server/licenses/lucene-highlighter-9.12.0.jar.sha1 b/server/licenses/lucene-highlighter-9.12.0.jar.sha1
diff --git a/server/licenses/lucene-join-9.12.0-snapshot-847316d.jar.sha1 b/server/licenses/lucene-join-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+9cd99401c826d910da3c2beab8e42f1af8be6ea4
diff --git a/server/licenses/lucene-join-9.12.0.jar.sha1 b/server/licenses/lucene-join-9.12.0.jar.sha1
diff --git a/server/licenses/lucene-memory-9.12.0-snapshot-847316d.jar.sha1 b/server/licenses/lucene-memory-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+cfee136ecbc3df7adc38b38e020dca5e61c22773
diff --git a/server/licenses/lucene-memory-9.12.0.jar.sha1 b/server/licenses/lucene-memory-9.12.0.jar.sha1
diff --git a/server/licenses/lucene-misc-9.12.0-snapshot-847316d.jar.sha1 b/server/licenses/lucene-misc-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+afbc5adf93d4eb1a1b109ad828d1968bf16ef292
diff --git a/server/licenses/lucene-misc-9.12.0.jar.sha1 b/server/licenses/lucene-misc-9.12.0.jar.sha1
diff --git a/server/licenses/lucene-queries-9.12.0-snapshot-847316d.jar.sha1 b/server/licenses/lucene-queries-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+16907c36f6adb8ba8f260e05738c66afb37c72d3
diff --git a/server/licenses/lucene-queries-9.12.0.jar.sha1 b/server/licenses/lucene-queries-9.12.0.jar.sha1
diff --git a/server/licenses/lucene-queryparser-9.12.0-snapshot-847316d.jar.sha1 b/server/licenses/lucene-queryparser-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+72baa9bddcf2efb71ffb695f1e9f548699ec13a0
diff --git a/server/licenses/lucene-queryparser-9.12.0.jar.sha1 b/server/licenses/lucene-queryparser-9.12.0.jar.sha1
diff --git a/server/licenses/lucene-sandbox-9.12.0-snapshot-847316d.jar.sha1 b/server/licenses/lucene-sandbox-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+dd3c63066f583d90b563ebaa6fbe61c603403acb
diff --git a/server/licenses/lucene-sandbox-9.12.0.jar.sha1 b/server/licenses/lucene-sandbox-9.12.0.jar.sha1
diff --git a/server/licenses/lucene-spatial-extras-9.12.0-snapshot-847316d.jar.sha1 b/server/licenses/lucene-spatial-extras-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+69b99530e0b05251c12863bee6a9325cafd5fdaa
diff --git a/server/licenses/lucene-spatial-extras-9.12.0.jar.sha1 b/server/licenses/lucene-spatial-extras-9.12.0.jar.sha1
diff --git a/server/licenses/lucene-spatial3d-9.12.0-snapshot-847316d.jar.sha1 b/server/licenses/lucene-spatial3d-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+a67d193b4b08790169db7cf005a2429991260287
diff --git a/server/licenses/lucene-spatial3d-9.12.0.jar.sha1 b/server/licenses/lucene-spatial3d-9.12.0.jar.sha1
diff --git a/server/licenses/lucene-suggest-9.12.0-snapshot-847316d.jar.sha1 b/server/licenses/lucene-suggest-9.12.0-snapshot-847316d.jar.sha1
@@ -0,0 +1 @@
+7a1625ae39071ccbfb3af11df5a74291758f4b47
diff --git a/server/licenses/lucene-suggest-9.12.0.jar.sha1 b/server/licenses/lucene-suggest-9.12.0.jar.sha1
diff --git a/...sterTest/java/org/opensearch/action/admin/cluster/node/tasks/ConcurrentSearchTasksIT.java b/...sterTest/java/org/opensearch/action/admin/cluster/node/tasks/ConcurrentSearchTasksIT.java
@@ -110,7 +110,7 @@ public void testConcurrentSearchTaskTracking() {
             Map<Long, List<ThreadResourceInfo>> threadStats = getThreadStats(SearchAction.NAME + "[*]", taskInfo.getTaskId());
             // Concurrent search forks each slice of 5 segments to different thread (see please
             // https://github.com/apache/lucene/issues/12498)
-            assertEquals((int) Math.ceil(getSegmentCount(INDEX_NAME) / 5.0), threadStats.size());
+            assertEquals((int) Math.ceil(getSegmentCount(INDEX_NAME) / 5.0) + 1, threadStats.size());
 
             // assert that all task descriptions have non-zero length
             MatcherAssert.assertThat(taskInfo.getDescription().length(), greaterThan(0));

diff --git a/server/src/internalClusterTest/java/org/opensearch/recovery/TruncatedRecoveryIT.java b/server/src/internalClusterTest/java/org/opensearch/recovery/TruncatedRecoveryIT.java
@@ -58,7 +58,6 @@
 import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
 
 import static org.opensearch.indices.recovery.RecoverySettings.INDICES_RECOVERY_CHUNK_SIZE_SETTING;
@@ -185,7 +184,7 @@ public void testCancelRecoveryAndResume() throws Exception {
             )
             .get();
 
-        latch.await(5, TimeUnit.MINUTES);
+        latch.await();
 
         // at this point we got some truncated left overs on the replica on the unlucky node
         // now we are allowing the recovery to allocate again and finish to see if we wipe the truncated files

diff --git a/server/src/main/java/org/apache/lucene/misc/search/similarity/LegacyBM25Similarity.java b/server/src/main/java/org/apache/lucene/misc/search/similarity/LegacyBM25Similarity.java
@@ -70,7 +70,6 @@ public LegacyBM25Similarity(float k1, float b) {
      *     within the range {@code [0..1]}
      */
     public LegacyBM25Similarity(float k1, float b, boolean discountOverlaps) {
-        super(discountOverlaps);
         this.bm25Similarity = new BM25Similarity(k1, b, discountOverlaps);
     }
 
@@ -102,6 +101,15 @@ public final float getB() {
         return bm25Similarity.getB();
     }
 
+    /**
+     * Returns true if overlap tokens are discounted from the document's length.
+     *
+     * @see #LegacyBM25Similarity(float, float, boolean)
+     */
+    public boolean getDiscountOverlaps() {
+        return bm25Similarity.getDiscountOverlaps();
+    }
+
     @Override
     public String toString() {
         return bm25Similarity.toString();

diff --git a/server/src/main/java/org/apache/lucene/util/CombinedBitSet.java b/server/src/main/java/org/apache/lucene/util/CombinedBitSet.java
@@ -87,7 +87,15 @@ public int prevSetBit(int index) {
 
     @Override
     public int nextSetBit(int index) {
-        return nextSetBit(index, length() - 1);
+        assert index >= 0 && index < length : "index=" + index + " numBits=" + length();
+        int next = first.nextSetBit(index);
+        while (next != DocIdSetIterator.NO_MORE_DOCS && second.get(next) == false) {
+            if (next == length() - 1) {
+                return DocIdSetIterator.NO_MORE_DOCS;
+            }
+            next = first.nextSetBit(next + 1);
+        }
+        return next;
     }
 
     @Override
@@ -124,20 +132,4 @@ public void clear(int startIndex, int endIndex) {
     public boolean getAndSet(int i) {
         throw new UnsupportedOperationException("not implemented");
     }
-
-    @Override
-    public int nextSetBit(int start, int end) {
-        assert start >= 0 && start < length() : "start=" + start + " numBits=" + length();
-        assert end >= start && end < length() : "end=" + end + " numBits=" + length();
-
-        int next = first.nextSetBit(start);
-        while (next != DocIdSetIterator.NO_MORE_DOCS && second.get(next) == false) {
-            if (next >= end) {
-                return DocIdSetIterator.NO_MORE_DOCS;
-            }
-            next = first.nextSetBit(next + 1);
-        }
-        return next;
-
-    }
 }
diff --git a/server/src/main/java/org/opensearch/common/lucene/Lucene.java b/server/src/main/java/org/opensearch/common/lucene/Lucene.java
@@ -110,7 +110,7 @@
  * @opensearch.internal
  */
 public class Lucene {
-    public static final String LATEST_CODEC = "Lucene912";
+    public static final String LATEST_CODEC = "Lucene99";
 
     public static final String SOFT_DELETES_FIELD = "__soft_deletes";
 
@@ -272,7 +272,7 @@ public static void checkSegmentInfoIntegrity(final Directory directory) throws I
 
             @Override
             protected Object doBody(String segmentFileName) throws IOException {
-                try (IndexInput input = directory.openInput(segmentFileName, IOContext.READONCE)) {
+                try (IndexInput input = directory.openInput(segmentFileName, IOContext.READ)) {
                     CodecUtil.checksumEntireFile(input);
                 }
                 return null;

diff --git a/server/src/main/java/org/opensearch/index/codec/CodecService.java b/server/src/main/java/org/opensearch/index/codec/CodecService.java
@@ -34,8 +34,8 @@
 
 import org.apache.logging.log4j.Logger;
 import org.apache.lucene.codecs.Codec;
-import org.apache.lucene.codecs.lucene912.Lucene912Codec;
-import org.apache.lucene.codecs.lucene912.Lucene912Codec.Mode;
+import org.apache.lucene.codecs.lucene99.Lucene99Codec;
+import org.apache.lucene.codecs.lucene99.Lucene99Codec.Mode;
 import org.opensearch.common.Nullable;
 import org.opensearch.common.collect.MapBuilder;
 import org.opensearch.index.IndexSettings;
@@ -70,10 +70,10 @@ public CodecService(@Nullable MapperService mapperService, IndexSettings indexSe
         final MapBuilder<String, Codec> codecs = MapBuilder.<String, Codec>newMapBuilder();
         assert null != indexSettings;
         if (mapperService == null) {
-            codecs.put(DEFAULT_CODEC, new Lucene912Codec());
-            codecs.put(LZ4, new Lucene912Codec());
-            codecs.put(BEST_COMPRESSION_CODEC, new Lucene912Codec(Mode.BEST_COMPRESSION));
-            codecs.put(ZLIB, new Lucene912Codec(Mode.BEST_COMPRESSION));
+            codecs.put(DEFAULT_CODEC, new Lucene99Codec());
+            codecs.put(LZ4, new Lucene99Codec());
+            codecs.put(BEST_COMPRESSION_CODEC, new Lucene99Codec(Mode.BEST_COMPRESSION));
+            codecs.put(ZLIB, new Lucene99Codec(Mode.BEST_COMPRESSION));
         } else {
             // CompositeCodec still delegates to PerFieldMappingPostingFormatCodec
             // We can still support all the compression codecs when composite index is present

diff --git a/server/src/main/java/org/opensearch/index/codec/PerFieldMappingPostingFormatCodec.java b/server/src/main/java/org/opensearch/index/codec/PerFieldMappingPostingFormatCodec.java
@@ -37,7 +37,7 @@
 import org.apache.lucene.codecs.DocValuesFormat;
 import org.apache.lucene.codecs.PostingsFormat;
 import org.apache.lucene.codecs.lucene90.Lucene90DocValuesFormat;
-import org.apache.lucene.codecs.lucene912.Lucene912Codec;
+import org.apache.lucene.codecs.lucene99.Lucene99Codec;
 import org.opensearch.common.lucene.Lucene;
 import org.opensearch.index.codec.fuzzy.FuzzyFilterPostingsFormat;
 import org.opensearch.index.codec.fuzzy.FuzzySetFactory;
@@ -59,7 +59,7 @@
  *
  * @opensearch.internal
  */
-public class PerFieldMappingPostingFormatCodec extends Lucene912Codec {
+public class PerFieldMappingPostingFormatCodec extends Lucene99Codec {
     private final Logger logger;
     private final MapperService mapperService;
     private final DocValuesFormat dvFormat = new Lucene90DocValuesFormat();

diff --git a/server/src/main/java/org/opensearch/index/codec/composite/CompositeCodecFactory.java b/server/src/main/java/org/opensearch/index/codec/composite/CompositeCodecFactory.java
@@ -10,9 +10,8 @@
 
 import org.apache.logging.log4j.Logger;
 import org.apache.lucene.codecs.Codec;
-import org.apache.lucene.codecs.lucene912.Lucene912Codec;
+import org.apache.lucene.codecs.lucene99.Lucene99Codec;
 import org.opensearch.common.annotation.ExperimentalApi;
-import org.opensearch.index.codec.composite.composite912.Composite912Codec;
 import org.opensearch.index.codec.composite.composite99.Composite99Codec;
 import org.opensearch.index.mapper.MapperService;
 
@@ -39,10 +38,10 @@ public CompositeCodecFactory() {}
 
     public Map<String, Codec> getCompositeIndexCodecs(MapperService mapperService, Logger logger) {
         Map<String, Codec> codecs = new HashMap<>();
-        codecs.put(DEFAULT_CODEC, new Composite912Codec(Lucene912Codec.Mode.BEST_SPEED, mapperService, logger));
-        codecs.put(LZ4, new Composite912Codec(Lucene912Codec.Mode.BEST_SPEED, mapperService, logger));
-        codecs.put(BEST_COMPRESSION_CODEC, new Composite912Codec(Lucene912Codec.Mode.BEST_COMPRESSION, mapperService, logger));
-        codecs.put(ZLIB, new Composite912Codec(Lucene912Codec.Mode.BEST_COMPRESSION, mapperService, logger));
+        codecs.put(DEFAULT_CODEC, new Composite99Codec(Lucene99Codec.Mode.BEST_SPEED, mapperService, logger));
+        codecs.put(LZ4, new Composite99Codec(Lucene99Codec.Mode.BEST_SPEED, mapperService, logger));
+        codecs.put(BEST_COMPRESSION_CODEC, new Composite99Codec(Lucene99Codec.Mode.BEST_COMPRESSION, mapperService, logger));
+        codecs.put(ZLIB, new Composite99Codec(Lucene99Codec.Mode.BEST_COMPRESSION, mapperService, logger));
         return codecs;
     }
 }
diff --git a/...er/src/main/java/org/opensearch/index/codec/composite/composite912/Composite912Codec.java b/...er/src/main/java/org/opensearch/index/codec/composite/composite912/Composite912Codec.java