[MNT-25242] Add property to control if scope is cleaned (#3520)

repository/src/main/java/org/alfresco/repo/jscript/RhinoScriptProcessor.java

@@ -2,7 +2,7 @@
  * #%L
  * Alfresco Repository
  * %%
- * Copyright (C) 2005 - 2016 Alfresco Software Limited
+ * Copyright (C) 2005 - 2025 Alfresco Software Limited
  * %%
  * This file is part of the Alfresco software. 
  * If the software was purchased under a paid Alfresco license, the terms of 
@@ -124,6 +124,9 @@ public class RhinoScriptProcessor extends BaseProcessor implements ScriptProcess
     /** Number of (bytecode) instructions that will trigger the observer */
     private int observerInstructionCount = 100;
 
+    /** Flag to enable or disable scope cleaning at the end of each script execution */
+    private boolean cleanScope = true;
+
     /** Custom context factory */
     public static AlfrescoContextFactory contextFactory;
 
@@ -210,6 +213,15 @@ public class RhinoScriptProcessor extends BaseProcessor implements ScriptProcess
         this.observerInstructionCount = observerInstructionCount;
     }
 
+    /**
+     * @param cleanScope
+     *            true to enable scope cleaning at the end of each script execution - set to false to disable this feature.
+     */
+    public void setCleanScope(boolean cleanScope)
+    {
+        this.cleanScope = cleanScope;
+    }
+
     /**
      * @see org.alfresco.service.cmr.repository.ScriptProcessor#reset()
      */
@@ -619,7 +631,7 @@ public class RhinoScriptProcessor extends BaseProcessor implements ScriptProcess
         }
         finally
         {
-            if (!secure)
+            if (!secure && cleanScope)
             {
                 unsetScope(model, scope);
             }

repository/src/main/resources/alfresco/repository.properties

@@ -1394,6 +1394,9 @@ scripts.execution.maxMemoryUsedInBytes=-1
 # Number of instructions that will trigger the observer
 scripts.execution.observerInstructionCount=5000
 
+# Flag to control if the scope is cleaned at the end of script execution
+scripts.execution.clean.scope=true
+
 # Default value being used in POST/size-details endpoint to partition a huge folder into smaller chunks
 # so that we can compute more efficiently and consolidate all sizes into a single unit.
 default.async.folder.items=1000

repository/src/main/resources/alfresco/script-services-context.xml

@@ -60,6 +60,9 @@
         <property name="observerInstructionCount">
             <value>${scripts.execution.observerInstructionCount}</value>
         </property>
+        <property name="cleanScope">
+            <value>${scripts.execution.clean.scope}</value>
+        </property>
     </bean>
 
     <!-- base config implementation that script extension beans extend from - for auto registration