fix: made the JinjaTemplateRenderer's constructor be protected

Signed-off-by: Sun Yuhan <[email protected]>

Author: sunyuhan1998

spring-ai-template-jinja/src/main/java/org/springframework/ai/template/jinja/JinjaTemplateRenderer.java

@@ -16,21 +16,22 @@
 
 package org.springframework.ai.template.jinja;
 
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
 import com.hubspot.jinjava.Jinjava;
 import com.hubspot.jinjava.JinjavaConfig;
 import com.hubspot.jinjava.tree.parse.ExpressionToken;
 import com.hubspot.jinjava.tree.parse.Token;
 import com.hubspot.jinjava.tree.parse.TokenScanner;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+
 import org.springframework.ai.template.TemplateRenderer;
 import org.springframework.ai.template.ValidationMode;
 import org.springframework.util.Assert;
 
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-
 /**
  * Renders a template using the Jin-java library.
  *
@@ -63,7 +64,7 @@ public class JinjaTemplateRenderer implements TemplateRenderer {
 	 * @param validationMode the mode to use for template variable validation; must not be
 	 * null
 	 */
-	public JinjaTemplateRenderer(ValidationMode validationMode) {
+	protected JinjaTemplateRenderer(ValidationMode validationMode) {
 		Assert.notNull(validationMode, "validationMode cannot be null");
 		this.validationMode = validationMode;
 	}

spring-ai-template-jinja/src/test/java/org/springframework/ai/template/jinja/JinjaTemplateRendererTests.java

@@ -16,13 +16,14 @@
 
 package org.springframework.ai.template.jinja;
 
+import java.util.HashMap;
+import java.util.Map;
+
 import org.junit.jupiter.api.Test;
+
 import org.springframework.ai.template.ValidationMode;
 import org.springframework.test.util.ReflectionTestUtils;
 
-import java.util.HashMap;
-import java.util.Map;
-
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;