Move Nullable into core (#29341)

This moves the `Nullable` annotation into the elasticsearch-core project, so it
may be used without relying entirely on the server jar. This will allow us to
decouple more pieces to make them smaller.

In addition, there were two different `Nullable` annotations, these have all
been moved to the ES version rather than the inject version.

Author: dakrone

server/src/main/java/org/elasticsearch/common/Nullable.java renamed to libs/elasticsearch-core/src/main/java/org/elasticsearch/common/Nullable.java

@@ -22,7 +22,7 @@
 import org.elasticsearch.Version;
 import org.elasticsearch.cluster.SnapshotsInProgress.State;
 import org.elasticsearch.common.Strings;
-import org.elasticsearch.common.inject.internal.Nullable;
+import org.elasticsearch.common.Nullable;
 import org.elasticsearch.common.io.stream.StreamInput;
 import org.elasticsearch.common.io.stream.StreamOutput;
 import org.elasticsearch.common.io.stream.Streamable;

server/src/main/java/org/elasticsearch/action/admin/cluster/snapshots/status/SnapshotStatus.java

@@ -19,7 +19,7 @@
 
 package org.elasticsearch.action.search;
 
-import org.elasticsearch.common.inject.internal.Nullable;
+import org.elasticsearch.common.Nullable;
 
 class ScrollIdForNode {
     private final String node;

server/src/main/java/org/elasticsearch/action/search/ScrollIdForNode.java

@@ -17,6 +17,7 @@
 package org.elasticsearch.common.inject;
 
 import org.elasticsearch.common.Classes;
+import org.elasticsearch.common.Nullable;
 import org.elasticsearch.common.inject.internal.Annotations;
 import org.elasticsearch.common.inject.internal.BindingImpl;
 import org.elasticsearch.common.inject.internal.Errors;
@@ -27,7 +28,6 @@
 import org.elasticsearch.common.inject.internal.LinkedBindingImpl;
 import org.elasticsearch.common.inject.internal.LinkedProviderBindingImpl;
 import org.elasticsearch.common.inject.internal.MatcherAndConverter;
-import org.elasticsearch.common.inject.internal.Nullable;
 import org.elasticsearch.common.inject.internal.Scoping;
 import org.elasticsearch.common.inject.internal.SourceProvider;
 import org.elasticsearch.common.inject.internal.ToStringBuilder;

server/src/main/java/org/elasticsearch/common/inject/InjectorImpl.java

@@ -16,6 +16,7 @@
 
 package org.elasticsearch.common.inject.internal;
 
+import org.elasticsearch.common.Nullable;
 import org.elasticsearch.common.util.CollectionUtils;
 
 import java.io.IOException;

server/src/main/java/org/elasticsearch/common/inject/internal/Join.java

@@ -19,7 +19,7 @@
 
 package org.elasticsearch.search.aggregations.bucket.composite;
 
-import org.elasticsearch.common.inject.internal.Nullable;
+import org.elasticsearch.common.Nullable;
 import org.elasticsearch.index.mapper.MappedFieldType;
 import org.elasticsearch.search.DocValueFormat;
 import org.elasticsearch.search.aggregations.support.ValuesSource;

server/src/main/java/org/elasticsearch/common/inject/internal/Nullable.java

@@ -25,7 +25,7 @@
 import org.apache.lucene.search.Query;
 import org.apache.lucene.util.Bits;
 import org.apache.lucene.util.DocIdSetBuilder;
-import org.elasticsearch.common.inject.internal.Nullable;
+import org.elasticsearch.common.Nullable;
 import org.elasticsearch.search.aggregations.LeafBucketCollector;
 
 import java.io.IOException;

server/src/main/java/org/elasticsearch/search/aggregations/bucket/composite/CompositeValuesSourceConfig.java

@@ -21,7 +21,7 @@
 import org.apache.lucene.index.LeafReaderContext;
 import org.apache.lucene.index.SortedNumericDocValues;
 import org.apache.lucene.util.CollectionUtil;
-import org.elasticsearch.common.inject.internal.Nullable;
+import org.elasticsearch.common.Nullable;
 import org.elasticsearch.common.lease.Releasables;
 import org.elasticsearch.common.rounding.Rounding;
 import org.elasticsearch.common.util.LongHash;

server/src/main/java/org/elasticsearch/search/aggregations/bucket/composite/SortedDocsProducer.java

@@ -21,7 +21,7 @@
 
 import org.apache.lucene.index.LeafReaderContext;
 import org.apache.lucene.util.CollectionUtil;
-import org.elasticsearch.common.inject.internal.Nullable;
+import org.elasticsearch.common.Nullable;
 import org.elasticsearch.common.lease.Releasables;
 import org.elasticsearch.common.util.LongHash;
 import org.elasticsearch.index.fielddata.SortedNumericDoubleValues;