diff --git a/build.gradle b/build.gradle
index 1a2da5ace16..0c70d171290 100644
--- a/build.gradle
+++ b/build.gradle
@@ -47,7 +47,7 @@ subprojects {
       }
     }  
     extraArchive {
-      javadoc = false
+      javadoc = true
       tests = false
     }
     // we have our own username/password prompts so that they only happen once
@@ -87,8 +87,8 @@ allprojects {
 }
 
 subprojects {
-  // include license and notice in jars
-  gradle.projectsEvaluated {
+  project.afterEvaluate {
+    // include license and notice in jars
     tasks.withType(Jar) {
       into('META-INF') {
         from project.rootProject.rootDir
@@ -96,6 +96,15 @@ subprojects {
         include 'NOTICE.txt'   
       }
     }
+    // ignore missing javadocs
+    tasks.withType(Javadoc) { Javadoc javadoc ->
+      // the -quiet here is because of a bug in gradle, in that adding a string option
+      // by itself is not added to the options. By adding quiet, both this option and
+      // the "value" -quiet is added, separated by a space. This is ok since the javadoc
+      // command already adds -quiet, so we are just duplicating it
+      // see https://discuss.gradle.org/t/add-custom-javadoc-option-that-does-not-take-an-argument/5959
+      javadoc.options.addStringOption('Xdoclint:all,-missing', '-quiet')
+    }
   }
 
   configurations {
diff --git a/core/src/main/java/org/elasticsearch/action/admin/indices/warmer/get/GetWarmersRequest.java b/core/src/main/java/org/elasticsearch/action/admin/indices/warmer/get/GetWarmersRequest.java
index 25d82a1bbb6..bebf0d40b6e 100644
--- a/core/src/main/java/org/elasticsearch/action/admin/indices/warmer/get/GetWarmersRequest.java
+++ b/core/src/main/java/org/elasticsearch/action/admin/indices/warmer/get/GetWarmersRequest.java
@@ -28,7 +28,7 @@ import org.elasticsearch.common.io.stream.StreamOutput;
 import java.io.IOException;
 
 /**
- * An {@ClusterInfoRequest} that fetches {@link org.elasticsearch.search.warmer.IndexWarmersMetaData} for
+ * A {@link ClusterInfoRequest} that fetches {@link org.elasticsearch.search.warmer.IndexWarmersMetaData} for
  * a list or all existing index warmers in the cluster-state
  */
 public class GetWarmersRequest extends ClusterInfoRequest<GetWarmersRequest> {
diff --git a/core/src/main/java/org/elasticsearch/cluster/ClusterService.java b/core/src/main/java/org/elasticsearch/cluster/ClusterService.java
index 2a3d3c12e46..8a3a287bac8 100644
--- a/core/src/main/java/org/elasticsearch/cluster/ClusterService.java
+++ b/core/src/main/java/org/elasticsearch/cluster/ClusterService.java
@@ -123,7 +123,7 @@ public interface ClusterService extends LifecycleComponent<ClusterService> {
     /**
      * Returns the maximum wait time for tasks in the queue
      *
-     * @returns A zero time value if the queue is empty, otherwise the time value oldest task waiting in the queue
+     * @return A zero time value if the queue is empty, otherwise the time value oldest task waiting in the queue
      */
     TimeValue getMaxTaskWaitTime();
 }
diff --git a/core/src/main/java/org/elasticsearch/cluster/DiskUsage.java b/core/src/main/java/org/elasticsearch/cluster/DiskUsage.java
index e91adae9e34..fac9a9c479a 100644
--- a/core/src/main/java/org/elasticsearch/cluster/DiskUsage.java
+++ b/core/src/main/java/org/elasticsearch/cluster/DiskUsage.java
@@ -33,7 +33,7 @@ public class DiskUsage {
     final long freeBytes;
 
     /**
-     * Create a new DiskUsage, if {@code totalBytes} is 0, {@get getFreeDiskAsPercentage}
+     * Create a new DiskUsage, if {@code totalBytes} is 0, {@link #getFreeDiskAsPercentage()}
      * will always return 100.0% free
      */
     public DiskUsage(String nodeId, String nodeName, String path, long totalBytes, long freeBytes) {
diff --git a/core/src/main/java/org/elasticsearch/common/metrics/EWMA.java b/core/src/main/java/org/elasticsearch/common/metrics/EWMA.java
index b0cfd1bebc6..eefaaf22e7a 100644
--- a/core/src/main/java/org/elasticsearch/common/metrics/EWMA.java
+++ b/core/src/main/java/org/elasticsearch/common/metrics/EWMA.java
@@ -25,11 +25,12 @@ import java.util.concurrent.TimeUnit;
 
 /**
  * An exponentially-weighted moving average.
+ * 
+ * <p>
+ * Taken from codahale metric module, changed to use LongAdder
  *
  * @see <a href="http://www.teamquest.com/pdfs/whitepaper/ldavg1.pdf">UNIX Load Average Part 1: How It Works</a>
  * @see <a href="http://www.teamquest.com/pdfs/whitepaper/ldavg2.pdf">UNIX Load Average Part 2: Not Your Average Average</a>
- *      <p>
- *      Taken from codahale metric module, changed to use LongAdder
  */
 public class EWMA {
     private static final double M1_ALPHA = 1 - Math.exp(-5 / 60.0);
diff --git a/core/src/main/java/org/elasticsearch/common/metrics/MeterMetric.java b/core/src/main/java/org/elasticsearch/common/metrics/MeterMetric.java
index 4bd995c4294..8f7b46c355f 100644
--- a/core/src/main/java/org/elasticsearch/common/metrics/MeterMetric.java
+++ b/core/src/main/java/org/elasticsearch/common/metrics/MeterMetric.java
@@ -30,9 +30,10 @@ import java.util.concurrent.TimeUnit;
  * A meter metric which measures mean throughput and one-, five-, and
  * fifteen-minute exponentially-weighted moving average throughputs.
  *
+ * <p>
+ * taken from codahale metric module, replaced with LongAdder
+ *
  * @see <a href="http://en.wikipedia.org/wiki/Moving_average#Exponential_moving_average">EMA</a>
- *      <p>
- *      taken from codahale metric module, replaced with LongAdder
  */
 public class MeterMetric implements Metric {
     private static final long INTERVAL = 5; // seconds
diff --git a/core/src/main/java/org/elasticsearch/common/unit/DistanceUnit.java b/core/src/main/java/org/elasticsearch/common/unit/DistanceUnit.java
index 9abce6989fd..feebd93c5ab 100644
--- a/core/src/main/java/org/elasticsearch/common/unit/DistanceUnit.java
+++ b/core/src/main/java/org/elasticsearch/common/unit/DistanceUnit.java
@@ -225,7 +225,7 @@ public enum DistanceUnit {
      * @param in {@link StreamInput} to read the {@link DistanceUnit} from
      * @return {@link DistanceUnit} read from the {@link StreamInput}
      * @throws IOException if no unit can be read from the {@link StreamInput}
-     * @thrown ElasticsearchIllegalArgumentException if no matching {@link DistanceUnit} can be found
+     * @throws IllegalArgumentException if no matching {@link DistanceUnit} can be found
      */
     public static DistanceUnit readDistanceUnit(StreamInput in) throws IOException {
         byte b = in.readByte();
diff --git a/core/src/main/java/org/elasticsearch/index/mapper/core/CompletionFieldMapper.java b/core/src/main/java/org/elasticsearch/index/mapper/core/CompletionFieldMapper.java
index 7f793ab6161..d3cf998ef2c 100644
--- a/core/src/main/java/org/elasticsearch/index/mapper/core/CompletionFieldMapper.java
+++ b/core/src/main/java/org/elasticsearch/index/mapper/core/CompletionFieldMapper.java
@@ -421,8 +421,8 @@ public class CompletionFieldMapper extends FieldMapper implements ArrayValueMapp
      * Parsing:
      *  Acceptable format:
      *   "STRING" - interpreted as field value (input)
-     *   "ARRAY" - each element can be one of {@link #parse(ParseContext, Token, XContentParser, Map)}
-     *   "OBJECT" - see {@link #parse(ParseContext, Token, XContentParser, Map)}
+     *   "ARRAY" - each element can be one of "OBJECT" (see below)
+     *   "OBJECT" - { "input": STRING|ARRAY, "weight": STRING|INT, "contexts": ARRAY|OBJECT }
      *
      * Indexing:
      *  if context mappings are defined, delegates to {@link ContextMappings#addField(ParseContext.Document, String, String, int, Map)}
diff --git a/core/src/main/java/org/elasticsearch/index/translog/Translog.java b/core/src/main/java/org/elasticsearch/index/translog/Translog.java
index cdbcfe79031..d2e3bb8d248 100644
--- a/core/src/main/java/org/elasticsearch/index/translog/Translog.java
+++ b/core/src/main/java/org/elasticsearch/index/translog/Translog.java
@@ -257,7 +257,7 @@ public class Translog extends AbstractIndexShardComponent implements IndexShardC
     /**
      * Extracts the translog generation from a file name.
      *
-     * @throw IllegalArgumentException if the path doesn't match the expected pattern.
+     * @throws IllegalArgumentException if the path doesn't match the expected pattern.
      */
     public static long parseIdFromFileName(Path translogFile) {
         final String fileName = translogFile.getFileName().toString();
diff --git a/core/src/main/java/org/elasticsearch/indices/analysis/AnalysisModule.java b/core/src/main/java/org/elasticsearch/indices/analysis/AnalysisModule.java
index 11cf4dc5c12..350678da117 100644
--- a/core/src/main/java/org/elasticsearch/indices/analysis/AnalysisModule.java
+++ b/core/src/main/java/org/elasticsearch/indices/analysis/AnalysisModule.java
@@ -48,12 +48,12 @@ import java.util.*;
  * The {@link org.elasticsearch.indices.analysis.AnalysisModule.AnalysisProvider} is only a functional interface that allows to register factory constructors directly like the plugin example below:
  * <pre>
  *     public class MyAnalysisPlugin extends Plugin {
- *       @Override
+ *       \@Override
  *       public String name() {
  *         return "analysis-my-plugin";
  *       }
  *
- *       @Override
+ *       \@Override
  *       public String description() {
  *         return "my very fast and efficient analyzer";
  *       }
diff --git a/core/src/main/java/org/elasticsearch/search/aggregations/bucket/geogrid/GeoHashGrid.java b/core/src/main/java/org/elasticsearch/search/aggregations/bucket/geogrid/GeoHashGrid.java
index 212dfa36c90..6456fba8640 100644
--- a/core/src/main/java/org/elasticsearch/search/aggregations/bucket/geogrid/GeoHashGrid.java
+++ b/core/src/main/java/org/elasticsearch/search/aggregations/bucket/geogrid/GeoHashGrid.java
@@ -29,9 +29,9 @@ import java.util.List;
 public interface GeoHashGrid extends MultiBucketsAggregation {
 
     /**
-     * A bucket that is associated with a {@code geohash_grid} cell. The key of the bucket is the {@cod geohash} of the cell
+     * A bucket that is associated with a {@code geohash_grid} cell. The key of the bucket is the {@code geohash} of the cell
      */
-    public static interface Bucket extends MultiBucketsAggregation.Bucket {
+    interface Bucket extends MultiBucketsAggregation.Bucket {
     }
 
     /**
diff --git a/core/src/main/java/org/elasticsearch/search/aggregations/bucket/range/RangeBuilder.java b/core/src/main/java/org/elasticsearch/search/aggregations/bucket/range/RangeBuilder.java
index acb55f68ea5..c7723972b07 100644
--- a/core/src/main/java/org/elasticsearch/search/aggregations/bucket/range/RangeBuilder.java
+++ b/core/src/main/java/org/elasticsearch/search/aggregations/bucket/range/RangeBuilder.java
@@ -41,7 +41,7 @@ public class RangeBuilder extends AbstractRangeBuilder<RangeBuilder> {
      *
      * @param key  the key to use for this range in the response
      * @param from the lower bound on the distances, inclusive
-     * @parap to   the upper bound on the distances, exclusive
+     * @param to   the upper bound on the distances, exclusive
      */
     public RangeBuilder addRange(String key, double from, double to) {
         ranges.add(new Range(key, from, to));
diff --git a/core/src/main/java/org/elasticsearch/search/aggregations/bucket/range/date/DateRangeBuilder.java b/core/src/main/java/org/elasticsearch/search/aggregations/bucket/range/date/DateRangeBuilder.java
index 35c8a3011d1..4bd57580fae 100644
--- a/core/src/main/java/org/elasticsearch/search/aggregations/bucket/range/date/DateRangeBuilder.java
+++ b/core/src/main/java/org/elasticsearch/search/aggregations/bucket/range/date/DateRangeBuilder.java
@@ -42,7 +42,7 @@ public class DateRangeBuilder extends AbstractRangeBuilder<DateRangeBuilder> {
      *
      * @param key  the key to use for this range in the response
      * @param from the lower bound on the distances, inclusive
-     * @parap to   the upper bound on the distances, exclusive
+     * @param to   the upper bound on the distances, exclusive
      */
     public DateRangeBuilder addRange(String key, Object from, Object to) {
         ranges.add(new Range(key, from, to));
diff --git a/core/src/main/java/org/elasticsearch/search/aggregations/bucket/range/geodistance/GeoDistanceBuilder.java b/core/src/main/java/org/elasticsearch/search/aggregations/bucket/range/geodistance/GeoDistanceBuilder.java
index e6649fa6a90..ae8fc22d769 100644
--- a/core/src/main/java/org/elasticsearch/search/aggregations/bucket/range/geodistance/GeoDistanceBuilder.java
+++ b/core/src/main/java/org/elasticsearch/search/aggregations/bucket/range/geodistance/GeoDistanceBuilder.java
@@ -168,7 +168,7 @@ public class GeoDistanceBuilder extends AggregationBuilder<GeoDistanceBuilder> {
      *
      * @param key  the key to use for this range in the response
      * @param from the lower bound on the distances, inclusive
-     * @parap to   the upper bound on the distances, exclusive
+     * @param to   the upper bound on the distances, exclusive
      */
     public GeoDistanceBuilder addRange(String key, double from, double to) {
         ranges.add(new Range(key, from, to));
diff --git a/core/src/main/java/org/elasticsearch/search/aggregations/bucket/range/ipv4/IPv4RangeBuilder.java b/core/src/main/java/org/elasticsearch/search/aggregations/bucket/range/ipv4/IPv4RangeBuilder.java
index ccfc5622980..0ee9d878193 100644
--- a/core/src/main/java/org/elasticsearch/search/aggregations/bucket/range/ipv4/IPv4RangeBuilder.java
+++ b/core/src/main/java/org/elasticsearch/search/aggregations/bucket/range/ipv4/IPv4RangeBuilder.java
@@ -41,7 +41,7 @@ public class IPv4RangeBuilder extends AbstractRangeBuilder<IPv4RangeBuilder> {
      *
      * @param key  the key to use for this range in the response
      * @param from the lower bound on the distances, inclusive
-     * @parap to   the upper bound on the distances, exclusive
+     * @param to   the upper bound on the distances, exclusive
      */
     public IPv4RangeBuilder addRange(String key, String from, String to) {
         ranges.add(new Range(key, from, to));
diff --git a/plugins/analysis-icu/src/main/java/org/elasticsearch/index/analysis/IndexableBinaryStringTools.java b/plugins/analysis-icu/src/main/java/org/elasticsearch/index/analysis/IndexableBinaryStringTools.java
index a114a34d7dd..82be3c66159 100644
--- a/plugins/analysis-icu/src/main/java/org/elasticsearch/index/analysis/IndexableBinaryStringTools.java
+++ b/plugins/analysis-icu/src/main/java/org/elasticsearch/index/analysis/IndexableBinaryStringTools.java
@@ -37,7 +37,6 @@ import org.apache.lucene.analysis.tokenattributes.TermToBytesRefAttribute; // ja
  * final content char.
  * <p>
  *
- * @lucene.experimental
  * @deprecated Implement {@link TermToBytesRefAttribute} and store bytes directly
  * instead. This class WAS removed in Lucene 5.0
  */
diff --git a/test-framework/src/main/java/org/elasticsearch/test/ESIntegTestCase.java b/test-framework/src/main/java/org/elasticsearch/test/ESIntegTestCase.java
index 639fc8c9fe9..7506c52c709 100644
--- a/test-framework/src/main/java/org/elasticsearch/test/ESIntegTestCase.java
+++ b/test-framework/src/main/java/org/elasticsearch/test/ESIntegTestCase.java
@@ -192,7 +192,7 @@ import static org.hamcrest.Matchers.startsWith;
  * should be used, here is an example:
  * <pre>
  *
- * @ClusterScope(scope=Scope.TEST) public class SomeIT extends ESIntegTestCase {
+ * {@literal @}ClusterScope(scope=Scope.TEST) public class SomeIT extends ESIntegTestCase {
  * public void testMethod() {}
  * }
  * </pre>
@@ -203,7 +203,7 @@ import static org.hamcrest.Matchers.startsWith;
  * determined at random and can change across tests. The {@link ClusterScope} allows configuring the initial number of nodes
  * that are created before the tests start.
  *  <pre>
- * @ClusterScope(scope=Scope.SUITE, numDataNodes=3)
+ * {@literal @}ClusterScope(scope=Scope.SUITE, numDataNodes=3)
  * public class SomeIT extends ESIntegTestCase {
  * public void testMethod() {}
  * }