Cache a lazy reference to OSGi registry instance

Signed-off-by: jansupol <[email protected]>

Author: jansupol

core-common/src/main/java/org/glassfish/jersey/internal/util/ReflectionHelper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010, 2020 Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2010, 2022 Oracle and/or its affiliates. All rights reserved.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v. 2.0, which is available at
@@ -56,7 +56,9 @@
 import org.glassfish.jersey.internal.LocalizationMessages;
 import org.glassfish.jersey.internal.OsgiRegistry;
 import org.glassfish.jersey.internal.util.collection.ClassTypePair;
-
+import org.glassfish.jersey.internal.util.collection.LazyValue;
+import org.glassfish.jersey.internal.util.collection.Value;
+import org.glassfish.jersey.internal.util.collection.Values;
 import org.osgi.framework.Bundle;
 import org.osgi.framework.FrameworkUtil;
 
@@ -1469,22 +1471,25 @@ private static boolean checkTypeBounds(final Class type, final Type[] bounds) {
 
     private static final Class<?> bundleReferenceClass = AccessController.doPrivileged(
             classForNamePA("org.osgi.framework.BundleReference", null));
-
-    /**
-     * Returns an {@link OsgiRegistry} instance.
-     *
-     * @return an {@link OsgiRegistry} instance or {@code null} if the class cannot be instantiated (not in OSGi environment).
-     */
-    public static OsgiRegistry getOsgiRegistryInstance() {
+    private static final LazyValue<Object> osgiInstance = Values.lazy((Value<Object>) () -> {
         try {
             if (bundleReferenceClass != null) {
                 return OsgiRegistry.getInstance();
             }
-        } catch (final Exception e) {
+        } catch (final Throwable e) {
             // Do nothing - instance is null.
         }
 
         return null;
+    });
+
+    /**
+     * Returns an {@link OsgiRegistry} instance.
+     *
+     * @return an {@link OsgiRegistry} instance or {@code null} if the class cannot be instantiated (not in OSGi environment).
+     */
+    public static OsgiRegistry getOsgiRegistryInstance() {
+        return (OsgiRegistry) osgiInstance.get();
     }
 
     /**