Program: 34955
Project: 34955
Buggy source:
protected List<ProviderInfo<? extends Object>> prepareProviders(boolean custom,boolean busGlobal,Object[] providers,ProviderInfo<Application> application){
  List<ProviderInfo<? extends Object>> theProviders=new ArrayList<ProviderInfo<? extends Object>>(providers.length);
  @SuppressWarnings("String_Node_Str") Map<String,Object> beanCustomizerContexts=(Map<String,Object>)getBus().getProperty(JaxRsConstants.ENDPOINT_BEANCUSTOMIZER_CONTEXTOBJ);
  for (  Object o : providers) {
    if (o == null) {
      continue;
    }
    ProviderInfo<? extends Object> pi=null;
    if (o instanceof Constructor) {
      Map<Class<?>,Object> values=CastUtils.cast(application == null ? null : Collections.singletonMap(Application.class,application.getProvider()));
      pi=createProviderFromConstructor((Constructor<?>)o,values,getBus(),true,custom);
    }
 else     if (o instanceof ProviderInfo) {
      pi=(ProviderInfo<?>)o;
    }
 else {
      pi=new ProviderInfo<Object>(o,getBus(),custom);
      pi.setBusGlobal(busGlobal);
    }
    JaxRsFactoryBeanCustomizer beanCustomizer=InjectionRuntimeContextHelper.findBeanCustomizer(o.getClass(),getBus());
    if (beanCustomizer != null) {
      Object proxyObject=beanCustomizer.onSetupProviderProxy(o,beanCustomizerContexts.get(Integer.toString(beanCustomizer.hashCode())));
      if (proxyObject != null && (proxyObject != o || !proxyObject.equals(o))) {
        pi.setProvider(proxyObject);
      }
    }
    if (beanCustomizer != null && DynamicFeature.class.isAssignableFrom(pi.getProvider().getClass())) {
      Object newProviderInstance=beanCustomizer.onSingletonProviderInit(pi.getProvider(),beanCustomizerContexts.get(Integer.toString(beanCustomizer.hashCode())),null);
      if (newProviderInstance != null) {
        pi.setProvider(newProviderInstance);
      }
    }
    theProviders.add(pi);
  }
  return theProviders;
}

Fixed version (ground truth):
protected List<ProviderInfo<? extends Object>> prepareProviders(boolean custom,boolean busGlobal,Object[] providers,ProviderInfo<Application> application){
  List<ProviderInfo<? extends Object>> theProviders=new ArrayList<ProviderInfo<? extends Object>>(providers.length);
  @SuppressWarnings("String_Node_Str") Map<String,Object> beanCustomizerContexts=(Map<String,Object>)getBus().getProperty(JaxRsConstants.ENDPOINT_BEANCUSTOMIZER_CONTEXTOBJ);
  for (  Object o : providers) {
    if (o == null) {
      continue;
    }
    ProviderInfo<? extends Object> pi=null;
    if (o instanceof Constructor) {
      Map<Class<?>,Object> values=CastUtils.cast(application == null ? null : Collections.singletonMap(Application.class,application.getProvider()));
      pi=createProviderFromConstructor((Constructor<?>)o,values,getBus(),true,custom);
    }
 else     if (o instanceof ProviderInfo) {
      pi=(ProviderInfo<?>)o;
    }
 else {
      pi=new ProviderInfo<Object>(o,getBus(),custom);
      pi.setBusGlobal(busGlobal);
    }
    JaxRsFactoryBeanCustomizer beanCustomizer=InjectionRuntimeContextHelper.findBeanCustomizer(o.getClass(),getBus());
    if (beanCustomizer != null) {
      Object proxyObject=beanCustomizer.onSetupProviderProxy(o,beanCustomizerContexts.get(CustomizerUtils.createCustomizerKey(beanCustomizer)));
      if (proxyObject != null && (proxyObject != o || !proxyObject.equals(o))) {
        pi.setProvider(proxyObject);
      }
    }
    if (beanCustomizer != null && DynamicFeature.class.isAssignableFrom(pi.getProvider().getClass())) {
      Object newProviderInstance=beanCustomizer.onSingletonProviderInit(pi.getProvider(),beanCustomizerContexts.get(CustomizerUtils.createCustomizerKey(beanCustomizer)),null);
      if (newProviderInstance != null) {
        pi.setProvider(newProviderInstance);
      }
    }
    theProviders.add(pi);
  }
  return theProviders;
}