Revert Temporary WFLY-12373 Weld MSC Contention issue Workaround

weld/common/src/main/java/org/jboss/as/weld/interceptors/Jsr299BindingsInterceptor.java

@@ -55,7 +55,6 @@ public class Jsr299BindingsInterceptor implements org.jboss.invocation.Intercept
     private final InterceptionType interceptionType;
     private final ComponentInterceptorSupport interceptorSupport;
     private final Supplier<InterceptorBindings> interceptorBindingsSupplier;
-    private volatile InterceptorBindings interceptorBindings;
 
     private Jsr299BindingsInterceptor(final InterceptionType interceptionType, final ComponentInterceptorSupport interceptorSupport, final Supplier<InterceptorBindings> interceptorBindingsSupplier) {
         this.interceptionType = interceptionType;
@@ -97,11 +96,7 @@ private Object doMethodInterception(InvocationContext invocationContext, Interce
     public Object processInvocation(final InterceptorContext context) throws Exception {
         final ComponentInstance componentInstance = context.getPrivateData(ComponentInstance.class);
         final InterceptorInstances interceptorInstances = interceptorSupport.getInterceptorInstances(componentInstance);
-        InterceptorBindings interceptorBindings = this.interceptorBindings;
-        if (interceptorBindings == null) {
-            // Cache the bindings as reading the interceptorBindingsSupplier is contended
-            interceptorBindings = this.interceptorBindings = interceptorBindingsSupplier.get();
-        }
+        final InterceptorBindings interceptorBindings = interceptorBindingsSupplier.get();
         switch (interceptionType) {
             case AROUND_INVOKE:
                 return doMethodInterception(context.getInvocationContext(), InterceptionType.AROUND_INVOKE, interceptorInstances, interceptorBindings);

weld/subsystem/src/main/java/org/jboss/as/weld/deployment/WeldClassIntrospector.java

@@ -42,8 +42,6 @@ public class WeldClassIntrospector implements EEClassIntrospector, Service {
     private static final ServiceName SERVICE_NAME = ServiceName.of("weld", "weldClassIntrospector");
     private final Consumer<EEClassIntrospector> eeClassIntrospectorConsumer;
     private final Supplier<BeanManager> beanManagerSupplier;
-    // Cache the BeanManage to avoid contended calls to the beanManagerSupplier
-    private volatile BeanManager beanManager;
     private final ConcurrentMap<Class<?>, InjectionTarget<?>> injectionTargets = new ConcurrentHashMap<>();
 
     private WeldClassIntrospector(final Consumer<EEClassIntrospector> eeClassIntrospectorConsumer, final Supplier<BeanManager> beanManagerSupplier) {
@@ -68,6 +66,7 @@ public static ServiceName serviceName(DeploymentUnit deploymentUnit) {
     @Override
     public ManagedReferenceFactory createFactory(Class<?> clazz) {
 
+        final BeanManager beanManager = this.beanManagerSupplier.get();
         final InjectionTarget injectionTarget = getInjectionTarget(clazz);
         return new ManagedReferenceFactory() {
             @Override
@@ -94,7 +93,7 @@ private InjectionTarget getInjectionTarget(Class<?> clazz) {
         if (target != null) {
             return target;
         }
-        final BeanManagerImpl beanManager = BeanManagerProxy.unwrap(this.beanManager);
+        final BeanManagerImpl beanManager = BeanManagerProxy.unwrap(beanManagerSupplier.get());
         Bean<?> bean = null;
         Set<Bean<?>> beans = new HashSet<>(beanManager.getBeans(clazz, Any.Literal.INSTANCE));
         Iterator<Bean<?>> it = beans.iterator();
@@ -120,6 +119,7 @@ private InjectionTarget getInjectionTarget(Class<?> clazz) {
 
     @Override
     public ManagedReference createInstance(final Object instance) {
+        final BeanManager beanManager = beanManagerSupplier.get();
         final InjectionTarget injectionTarget = getInjectionTarget(instance.getClass());
         final CreationalContext context = beanManager.createCreationalContext(null);
         injectionTarget.inject(instance, context);
@@ -129,14 +129,12 @@ public ManagedReference createInstance(final Object instance) {
 
     @Override
     public void start(final StartContext startContext) throws StartException {
-        beanManager = beanManagerSupplier.get();
         eeClassIntrospectorConsumer.accept(this);
     }
 
     @Override
     public void stop(StopContext stopContext) {
         injectionTargets.clear();
-        beanManager = null;
     }
 
     private static class WeldManagedReference implements ManagedReference {

weld/subsystem/src/main/java/org/jboss/as/weld/interceptors/Jsr299BindingsCreateInterceptor.java

@@ -56,7 +56,6 @@ public class Jsr299BindingsCreateInterceptor implements org.jboss.invocation.Int
     private final String ejbName;
     private final ComponentInterceptorSupport interceptorSupport;
     private volatile BeanManagerImpl beanManager;
-    private volatile InterceptorBindings interceptorBindings;
 
     public Jsr299BindingsCreateInterceptor(final Supplier<WeldBootstrapService> weldContainerSupplier,
                                            final Supplier<InterceptorBindings> interceptorBindingsSupplier,
@@ -93,11 +92,7 @@ public Object processInvocation(InterceptorContext interceptorContext) throws Ex
                 bean = beanManager.getBean(descriptor);
             }
         }
-        InterceptorBindings interceptorBindings = this.interceptorBindings;
-        if (interceptorBindings == null) {
-            // Cache the bindings as reading the interceptorBindingsSupplier is contended
-            interceptorBindings = this.interceptorBindings = interceptorBindingsSupplier.get();
-        }
+        InterceptorBindings interceptorBindings = interceptorBindingsSupplier.get();
 
         final ComponentInstance componentInstance = interceptorContext.getPrivateData(ComponentInstance.class);
         InterceptorInstances existing = interceptorSupport.getInterceptorInstances(componentInstance);

weld/subsystem/src/main/java/org/jboss/as/weld/services/bootstrap/WeldSecurityServices.java

@@ -53,8 +53,6 @@ public class WeldSecurityServices implements Service, SecurityServices {
     // that doesn't matter, just to make it harder for someone to modify this class and
     // accidentally introduce any unnecessary loading of ServerSecurityManager
     private final Supplier<?> securityManagerSupplier;
-    // Cache the object obtained from securityManagerSupplier to avoid contended reads of the supplier
-    private volatile Object securityManagerRef;
 
     public WeldSecurityServices(final Consumer<SecurityServices> securityServicesConsumer, final Supplier<?> securityManagerSupplier) {
         this.securityServicesConsumer = securityServicesConsumer;
@@ -68,7 +66,6 @@ public void start(final StartContext context) throws StartException {
 
     @Override
     public void stop(final StopContext context) {
-        securityManagerRef = null;
         securityServicesConsumer.accept(null);
     }
 
@@ -81,7 +78,7 @@ public Principal getPrincipal() {
 
         // Use 'Object' initially to avoid loading ServerSecurityManager (which may not be present)
         // until we know for sure we need it.
-        final Object securityManager = getSecurityManagerRef();
+        final Object securityManager = securityManagerSupplier != null ? securityManagerSupplier.get() : null;
         if (securityManager == null)
             throw WeldLogger.ROOT_LOGGER.securityNotEnabled();
         if (WildFlySecurityManager.isChecking()) {
@@ -126,14 +123,6 @@ private SecurityDomain getCurrentSecurityDomain() {
         }
     }
 
-    private Object getSecurityManagerRef() {
-        Object result = this.securityManagerRef;
-        if (result == null && this.securityManagerSupplier != null) {
-            result = this.securityManagerRef = securityManagerSupplier.get();
-        }
-        return result;
-    }
-
     static class WeldSecurityContext implements org.jboss.weld.security.spi.SecurityContext, PrivilegedAction<Void> {
 
         private final SecurityContext ctx;