Bug 2932: NPE on bundle activation

Error might occured when value containing YangStoreContext
is overwritten to null by refresh method, executed within another thread.
After fix, in case context is null, context is calculated again.

Change-Id: Icefe2a5970ec2ce0b67d5b3b386a35f781fc4156
Signed-off-by: Marian Dubai <mdubai@cisco.com>

diff --git a/opendaylight/netconf/config-netconf-connector/src/main/java/org/opendaylight/controller/netconf/confignetconfconnector/osgi/YangStoreService.java b/opendaylight/netconf/config-netconf-connector/src/main/java/org/opendaylight/controller/netconf/confignetconfconnector/osgi/YangStoreService.java
index 29616620920111b394dbe450284a9443b362c8ac..ac3873e6b89be414429773ee54ee53b05bec4f2c 100644 (file)
--- a/opendaylight/netconf/config-netconf-connector/src/main/java/org/opendaylight/controller/netconf/confignetconfconnector/osgi/YangStoreService.java
+++ b/opendaylight/netconf/config-netconf-connector/src/main/java/org/opendaylight/controller/netconf/confignetconfconnector/osgi/YangStoreService.java
@@ -137,15 +137,15 @@ public class YangStoreService implements YangStoreContext {
     }
 
     public AutoCloseable registerCapabilityListener(final CapabilityListener listener) {
-        final SoftReference<YangStoreSnapshot> yangStoreSnapshotSoftReference = ref.get();
 
-        YangStoreContext ret = yangStoreSnapshotSoftReference != null ? yangStoreSnapshotSoftReference.get() : null;
-        if(ret == null) {
-            ret = getYangStoreSnapshot();
+        YangStoreContext context = ref.get().get();
+
+        if(context == null) {
+            context = getYangStoreSnapshot();
         }
 
         this.listeners.add(listener);
-        listener.onCapabilitiesAdded(NetconfOperationServiceFactoryImpl.setupCapabilities(ret));
+        listener.onCapabilitiesAdded(NetconfOperationServiceFactoryImpl.setupCapabilities(context));
 
         return new AutoCloseable() {
             @Override