Use Collection#forEach() instead of Stream#forEach() for simplicity

Change-Id: I0a1aea4bdb5d305c50273e6ff749fe71bd2a295a
diff --git a/providers/netconf/device/src/main/java/org/onosproject/provider/netconf/device/impl/NetconfDeviceProvider.java b/providers/netconf/device/src/main/java/org/onosproject/provider/netconf/device/impl/NetconfDeviceProvider.java
index 3055b10..3eab86f 100644
--- a/providers/netconf/device/src/main/java/org/onosproject/provider/netconf/device/impl/NetconfDeviceProvider.java
+++ b/providers/netconf/device/src/main/java/org/onosproject/provider/netconf/device/impl/NetconfDeviceProvider.java
@@ -307,7 +307,7 @@
         NetconfProviderConfig cfg = cfgService.getConfig(appId, NetconfProviderConfig.class);
         if (cfg != null) {
             try {
-                cfg.getDevicesAddresses().stream().forEach(addr -> {
+                cfg.getDevicesAddresses().forEach(addr -> {
                     DeviceId deviceId = getDeviceId(addr.ip().toString(), addr.port());
                     Preconditions.checkNotNull(deviceId, ISNULL);
                     //Netconf configuration object
@@ -375,7 +375,7 @@
         if (cfg != null) {
             log.info("Checking connection to devices in configuration");
             try {
-                cfg.getDevicesAddresses().stream().forEach(addr -> {
+                cfg.getDevicesAddresses().forEach(addr -> {
                     DeviceId deviceId = getDeviceId(addr.ip().toString(), addr.port());
                     Preconditions.checkNotNull(deviceId, ISNULL);
                     //Netconf configuration object
diff --git a/providers/rest/device/src/main/java/org/onosproject/provider/rest/device/impl/RestDeviceProvider.java b/providers/rest/device/src/main/java/org/onosproject/provider/rest/device/impl/RestDeviceProvider.java
index eaafc30..8fe0115 100644
--- a/providers/rest/device/src/main/java/org/onosproject/provider/rest/device/impl/RestDeviceProvider.java
+++ b/providers/rest/device/src/main/java/org/onosproject/provider/rest/device/impl/RestDeviceProvider.java
@@ -212,7 +212,7 @@
                             deviceAdded(device);
                         });
                 //Removing devices not wanted anymore
-                toBeRemoved.stream().forEach(device -> deviceRemoved(device.deviceId()));
+                toBeRemoved.forEach(device -> deviceRemoved(device.deviceId()));
 
             }
         } catch (ConfigException e) {
diff --git a/providers/snmp/device/src/main/java/org/onosproject/provider/snmp/device/impl/SnmpDeviceProvider.java b/providers/snmp/device/src/main/java/org/onosproject/provider/snmp/device/impl/SnmpDeviceProvider.java
index 280d3ff..2a36950 100644
--- a/providers/snmp/device/src/main/java/org/onosproject/provider/snmp/device/impl/SnmpDeviceProvider.java
+++ b/providers/snmp/device/src/main/java/org/onosproject/provider/snmp/device/impl/SnmpDeviceProvider.java
@@ -137,7 +137,7 @@
     public void deactivate(ComponentContext context) {
 
         try {
-            controller.getDevices().stream().forEach(device -> {
+            controller.getDevices().forEach(device -> {
                 deviceBuilderExecutor.execute(new DeviceFactory(device, false));
             });
             deviceBuilderExecutor.awaitTermination(1000, TimeUnit.MILLISECONDS);
@@ -161,7 +161,7 @@
         SnmpProviderConfig cfg = netCfgService.getConfig(appId, SnmpProviderConfig.class);
         if (cfg != null) {
             try {
-                cfg.getDevicesInfo().stream().forEach(info -> {
+                cfg.getDevicesInfo().forEach(info -> {
                     SnmpDevice device = new DefaultSnmpDevice(info.ip().toString(),
                                                               info.port(), info.username(), info.password());
                     buildDevice(device);