DRILL-6422: Update guava to 23.0 and shade it

- Fix compilation errors for new version of Guava.
- Remove usage of deprecated API
- Shade guava and add dependencies to the shaded version
- Ban unshaded package
- Introduce drill-shaded module and move guava-shaded under it
- Add methods to convert shaded guava lists to the unshaded ones
- Add instruction for publishing artifacts to the Apache repository

1 files changed, 2 insertions, 2 deletions

diff --git a/contrib/storage-mongo/src/main/java/org/apache/drill/exec/store/mongo/MongoSubScan.java b/contrib/storage-mongo/src/main/java/org/apache/drill/exec/store/mongo/MongoSubScan.java
index cff3f5700..c328ae41a 100644
--- a/contrib/storage-mongo/src/main/java/org/apache/drill/exec/store/mongo/MongoSubScan.java
+++ b/contrib/storage-mongo/src/main/java/org/apache/drill/exec/store/mongo/MongoSubScan.java
@@ -17,6 +17,7 @@
  */
 package org.apache.drill.exec.store.mongo;
 
+import java.util.Collections;
 import java.util.Iterator;
 import java.util.LinkedList;
 import java.util.List;
@@ -41,7 +42,6 @@ import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonTypeName;
 import com.google.common.base.Preconditions;
-import com.google.common.collect.Iterators;
 
 @JsonTypeName("mongo-shard-read")
 public class MongoSubScan extends AbstractBase implements SubScan {
@@ -120,7 +120,7 @@ public class MongoSubScan extends AbstractBase implements SubScan {
 
   @Override
   public Iterator<PhysicalOperator> iterator() {
-    return Iterators.emptyIterator();
+    return Collections.emptyIterator();
   }
 
   public static class MongoSubScanSpec {