Backport: Add typless client side GetIndexRequest calls and response class

.ci/java-versions.properties

@@ -0,0 +1,10 @@
+# This file is used with all of the non-matrix tests in Jenkins.
+
+# This .properties file defines the versions of Java with which to
+# build and test Elasticsearch for this branch. Valid Java versions
+# are 'java' or 'openjdk' followed by the major release number.
+
+ES_BUILD_JAVA=java11
+ES_RUNTIME_JAVA=java8
+GRADLE_TASK=build
+

.ci/matrix-build-javas.yml

@@ -0,0 +1,9 @@
+# This file is used as part of a matrix build in Jenkins where the
+# values below are included as an axis of the matrix.
+
+# This axis of the build matrix represents the versions of Java with
+# which Elasticsearch will be built.  Valid Java versions are 'java'
+# or 'openjdk' followed by the major release number.
+
+ES_BUILD_JAVA:
+  - java11

.ci/matrix-java-exclusions.yml

@@ -0,0 +1,14 @@
+# This file is used as part of a matrix build in Jenkins where the
+# values below are excluded from the test matrix.
+
+# The yaml mapping below represents a single intersection on the build
+# matrix where a test *should not* be run.  The value of the exclude
+# key is a list of maps.
+
+# In this example all of the combinations defined in the matrix will
+# run except for the test that builds with java10 and runs with java8.
+# exclude:
+#   - ES_BUILD_JAVA: java10
+#     ES_RUNTIME_JAVA: java8
+
+exclude:

.ci/matrix-runtime-javas.yml

@@ -0,0 +1,13 @@
+# This file is used as part of a matrix build in Jenkins where the
+# values below are included as an axis of the matrix.
+
+# This axis of the build matrix represents the versions of Java on
+# which Elasticsearch will be tested.  Valid Java versions are 'java'
+# or 'openjdk' followed by the major release number.
+
+ES_RUNTIME_JAVA:
+  - java8
+  - java8fips
+  - java11
+  - zulu8
+  - zulu11

.ci/packer_cache.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+SCRIPT="$0"
+
+# SCRIPT might be an arbitrarily deep series of symbolic links; loop until we
+# have the concrete path
+while [ -h "$SCRIPT" ] ; do
+  ls=$(ls -ld "$SCRIPT")
+  # Drop everything prior to ->
+  link=$(expr "$ls" : '.*-> \(.*\)$')
+  if expr "$link" : '/.*' > /dev/null; then
+    SCRIPT="$link"
+  else
+    SCRIPT=$(dirname "$SCRIPT")/"$link"
+  fi
+done
+
+source $(dirname "${SCRIPT}")/java-versions.properties
+JAVA_HOME="${HOME}"/.java/${ES_BUILD_JAVA} ./gradlew --parallel  resolveAllDependencies composePull

.editorconfig

@@ -8,3 +8,6 @@ indent_style = space
 indent_size = 4
 trim_trailing_whitespace = true
 insert_final_newline = true
+
+[*.bat]
+indent_size = 2

.gitattributes

@@ -0,0 +1 @@
+CHANGELOG.asciidoc  merge=union

.gitignore

@@ -20,15 +20,8 @@ nbactions.xml
 .gradle/
 build/
 
-# gradle wrapper 
-/gradle/
-gradlew
-gradlew.bat
-
-# maven stuff (to be removed when trunk becomes 4.x)
-*-execution-hints.log
-target/
-dependency-reduced-pom.xml
+# vscode stuff
+.vscode/
 
 # testing stuff
 **/.local*
@@ -48,4 +41,3 @@ html_docs
 # random old stuff that we should look at the necessity of...
 /tmp/
 eclipse-build
-