SOLR-599 New Solr Client Using Java 11+ java.net.http.HttpClient (#2259)

SOLR-599: new SolrJ Http Client using the JDK built-in java.net.http.HttpClient (#2259)

Author: jdyer1

gradle/testing/randomization/policies/solr-tests.policy

@@ -184,6 +184,52 @@ grant {
   // for Apache HttpClient useSystemProperties
   permission java.net.NetPermission "getProxySelector";
   permission java.net.NetPermission "requestPasswordAuthentication";
+
+  // for java.net.http.HttpClient.  See HttpJdkSolrClientTest
+  permission "java.net.URLPermission" "http://127.0.0.1:*/solr/debug/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "http://127.0.0.1:*/solr/debug/foo/admin/ping", "GET:*";
+  permission "java.net.URLPermission" "http://127.0.0.1:*/solr/redirect/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "http://127.0.0.1:*/solr/slow/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "http://127.0.0.1:*/solr/collection1/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "http://127.0.0.1:*/solr/collection1/admin/ping", "GET:*";
+  permission "java.net.URLPermission" "socket://127.0.0.1:*", "CONNECT:*";
+
+  permission "java.net.URLPermission" "https://127.0.0.1:*/solr/debug/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "https://127.0.0.1:*/solr/debug/foo/admin/ping", "GET:*";
+  permission "java.net.URLPermission" "https://127.0.0.1:*/solr/redirect/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "https://127.0.0.1:*/solr/slow/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "https://127.0.0.1:*/solr/collection1/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "https://127.0.0.1:*/solr/collection1/admin/ping", "GET:*";
+
+  permission "java.net.URLPermission" "http://localhost:*/solr/debug/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "http://localhost:*/solr/debug/foo/admin/ping", "GET:*";
+  permission "java.net.URLPermission" "http://localhost:*/solr/redirect/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "http://localhost:*/solr/slow/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "http://localhost:*/solr/collection1/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "http://localhost:*/solr/collection1/admin/ping", "GET:*";
+  permission "java.net.URLPermission" "socket://localhost:*", "CONNECT:*";
+
+  permission "java.net.URLPermission" "https://localhost:*/solr/debug/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "https://localhost:*/solr/debug/foo/admin/ping", "GET:*";
+  permission "java.net.URLPermission" "https://localhost:*/solr/redirect/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "https://localhost:*/solr/slow/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "https://localhost:*/solr/collection1/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "https://localhost:*/solr/collection1/admin/ping", "GET:*";
+
+  permission "java.net.URLPermission" "http://[::1]:*/solr/debug/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "http://[::1]:*/solr/debug/foo/admin/ping", "GET:*";
+  permission "java.net.URLPermission" "http://[::1]:*/solr/redirect/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "http://[::1]:*/solr/slow/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "http://[::1]:*/solr/collection1/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "http://[::1]:*/solr/collection1/admin/ping", "GET:*";
+  permission "java.net.URLPermission" "socket://[::1]:*", "CONNECT:*";
+
+  permission "java.net.URLPermission" "https://[::1]:*/solr/debug/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "https://[::1]:*/solr/debug/foo/admin/ping", "GET:*";
+  permission "java.net.URLPermission" "https://[::1]:*/solr/redirect/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "https://[::1]:*/solr/slow/foo/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "https://[::1]:*/solr/collection1/*", "HEAD,GET,PUT,POST:*";
+  permission "java.net.URLPermission" "https://[::1]:*/solr/collection1/admin/ping", "GET:*";
 };
 
 // additional permissions based on system properties set by /bin/solr

solr/CHANGES.txt

@@ -88,6 +88,8 @@ New Features
 ---------------------
 * SOLR-17141: Implement 'cpuAllowed' query parameter to limit the maximum CPU usage by a running query. (Andrzej Bialecki, Gus Heck, David Smiley)
 
+* SOLR-599: Add a new SolrJ client using the JDK’s built-in Http Client.  (James Dyer)
+
 Improvements
 ---------------------
 * SOLR-17119: When registering or updating a ConfigurablePlugin through the `/cluster/plugin` API,

solr/solr-ref-guide/modules/deployment-guide/pages/solrj.adoc

@@ -99,6 +99,7 @@ Requests are sent in the form of {solr-javadocs}/solrj/org/apache/solr/client/so
 Communicates directly with a single Solr node.
 - {solr-javadocs}/solrj/org/apache/solr/client/solrj/impl/Http2SolrClient.html[`Http2SolrClient`] - async, non-blocking and general-purpose client that leverage HTTP/2.
 This class is experimental therefore its API's might change or be removed in minor versions of SolrJ.
+- {solr-javadocs}/solrj/org/apache/solr/client/solrj/impl/HttpJdkSolrClient.html[`HttpJdkSolrClient`] - General-purpose client using the JDK's built-in Http Client.  Supports both Http/2 and Http/1.1.  Targeted for those users wishing to minimize application dependencies.
 - {solr-javadocs}/solrj/org/apache/solr/client/solrj/impl/LBHttpSolrClient.html[`LBHttpSolrClient`] - balances request load across a list of Solr nodes.
 Adjusts the list of "in-service" nodes based on node health.
 - {solr-javadocs}/solrj/org/apache/solr/client/solrj/impl/LBHttp2SolrClient.html[`LBHttp2SolrClient`] - just like `LBHttpSolrClient` but using `Http2SolrClient` instead.