SOLR-17595: Backport "Fix Solr examples for Windows" (#2911)

* Fix argument parsing for -D options with multiple values on Windows

(cherry picked from commit 44ea44d)

* SOLR-17595: Fix Solr examples for Windows (#2909)

* Fix argument parsing for -D options with multiple values on Windows

* Fix invalid usage of wildcards in RunExampleTool / PostTool

(cherry picked from commit a4229e7)

* Fix unsupported method

solr/CHANGES.txt

@@ -140,6 +140,9 @@ Bug Fixes
 
 * SOLR-17586: Print zkcli.sh deprecation msg to stderr, which fixes Solr Operator upload of security.json to zookeeper (Jan Høydahl)
 
+* SOLR-17595: Fix two issues in Solr CLI that prevent Solr from starting with the techproducts example and from
+  correctly parsing arguments on Windows that start with -D and have multiple values separated by "," or spaces. (Christos Malliaridis)
+
 Dependency Upgrades
 ---------------------
 (No changes)

solr/bin/solr.cmd

@@ -726,15 +726,36 @@ SHIFT
 goto parse_args
 
 :set_passthru
-set "PASSTHRU=%~1=%~2"
+set "PASSTHRU_KEY=%~1"
+set "PASSTHRU_VALUES="
+
+SHIFT
+:repeat_passthru
+set "arg=%~1"
+if "%arg%"=="" goto end_passthru
+set firstChar=%arg:~0,1%
+IF "%firstChar%"=="-" (
+  goto end_passthru
+)
+
+if defined PASSTHRU_VALUES (
+    set "PASSTHRU_VALUES=%PASSTHRU_VALUES%,%arg%"
+) else (
+    set "PASSTHRU_VALUES=%arg%"
+)
+SHIFT
+goto repeat_passthru
+
+:end_passthru
+set "PASSTHRU=%PASSTHRU_KEY%=%PASSTHRU_VALUES%"
+
 IF NOT "%SOLR_OPTS%"=="" (
   set "SOLR_OPTS=%SOLR_OPTS% %PASSTHRU%"
 ) ELSE (
   set "SOLR_OPTS=%PASSTHRU%"
 )
 set "PASS_TO_RUN_EXAMPLE=%PASSTHRU% !PASS_TO_RUN_EXAMPLE!"
-SHIFT
-SHIFT
+
 goto parse_args
 
 :set_noprompt

solr/core/src/java/org/apache/solr/cli/RunExampleTool.java

@@ -337,7 +337,9 @@ protected void runExample(CommandLine cli, String exampleName) throws Exception
               collectionName,
               "--type",
               "application/xml",
-              exampledocsDir.getAbsolutePath() + "/*.xml"
+              "--filetypes",
+              "xml",
+              exampledocsDir.getAbsolutePath()
             };
         PostTool postTool = new PostTool();
         CommandLine postToolCli = SolrCLI.parseCmdLine(postTool, args);