Additional changes

Author: S-Saranya1

codegen/src/main/java/software/amazon/awssdk/codegen/docs/OperationDocProvider.java

@@ -30,6 +30,7 @@
 import software.amazon.awssdk.codegen.model.intermediate.OperationModel;
 import software.amazon.awssdk.codegen.model.intermediate.ShapeModel;
 import software.amazon.awssdk.codegen.model.service.PaginatorDefinition;
+import software.amazon.awssdk.utils.Lazy;
 import software.amazon.awssdk.utils.Pair;
 import software.amazon.awssdk.utils.StringUtils;
 
@@ -38,6 +39,9 @@
  */
 abstract class OperationDocProvider {
 
+    private static final Lazy<ExampleMetadataProvider> EXAMPLE_PROVIDER = 
+        new Lazy<>(() -> ExampleMetadataProvider.getInstance(EXAMPLE_META_PATH));
+
     /**
      * Doc string for {@link java.nio.file.Path} parameter in simple method overload for streaming input operations.
      */
@@ -90,9 +94,8 @@ String getDocs() {
             docBuilder.see(crosslink);
         }
 
-        ExampleMetadataProvider exampleProvider = ExampleMetadataProvider.getInstance(EXAMPLE_META_PATH);
-        Optional<String> codeExampleLink = exampleProvider.createLinkToCodeExample(model.getMetadata(), 
-                                                                                    opModel.getOperationName());
+        Optional<String> codeExampleLink = EXAMPLE_PROVIDER.getValue()
+            .createLinkToCodeExample(model.getMetadata(), opModel.getOperationName());
         codeExampleLink.ifPresent(docBuilder::see);
         return docBuilder.build().replace("$", "&#36");
     }

codegen/src/main/java/software/amazon/awssdk/codegen/internal/ExampleMetadataProvider.java

@@ -64,6 +64,13 @@ public static ExampleMetadataProvider getInstance(String exampleMetaPath) {
         }
         return INSTANCE_CACHE.computeIfAbsent(exampleMetaPath, ExampleMetadataProvider::new);
     }
+    
+    /**
+     * Clears the instance cache.
+     */
+    public static void clearCache() {
+        INSTANCE_CACHE.clear();
+    }
 
     /**
      * Creates a link to a code example for the given operation.

codegen/src/test/java/software/amazon/awssdk/codegen/docs/OperationDocProviderTest.java

@@ -19,6 +19,7 @@
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 
 import java.util.Optional;
+import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.Test;
 import software.amazon.awssdk.codegen.internal.ExampleMetadataProvider;
 import software.amazon.awssdk.codegen.model.intermediate.Metadata;
@@ -27,6 +28,11 @@ public class OperationDocProviderTest {
 
     private static final String TEST_EXAMPLE_META_PATH = "software/amazon/awssdk/codegen/test-example-meta.json";
 
+    @AfterEach
+    void cleanupCache() {
+        ExampleMetadataProvider.clearCache();
+    }
+
     @Test
     public void exampleMetadataService_createLinkToCodeExample_withValidExample_returnsCorrectLink() {
         ExampleMetadataProvider provider = ExampleMetadataProvider.getInstance(TEST_EXAMPLE_META_PATH);

codegen/src/test/java/software/amazon/awssdk/codegen/emitters/tasks/PackageInfoGeneratorTasksTest.java

@@ -21,6 +21,7 @@
 import java.io.InputStream;
 import java.util.List;
 import java.util.Scanner;
+import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.Test;
 import software.amazon.awssdk.codegen.emitters.GeneratorTaskParams;
 import software.amazon.awssdk.codegen.internal.ExampleMetadataProvider;
@@ -31,6 +32,11 @@ public class PackageInfoGeneratorTasksTest {
 
     private static final String TEST_EXAMPLE_META_PATH = "software/amazon/awssdk/codegen/test-example-meta.json";
 
+    @AfterEach
+    void cleanupCache() {
+        ExampleMetadataProvider.clearCache();
+    }
+
     @Test
     public void exampleMetadataService_withExamples_returnsCorrectExamples() {
         ExampleMetadataProvider provider = ExampleMetadataProvider.getInstance(TEST_EXAMPLE_META_PATH);