diff --git a/core/net/src/main/java/org/onosproject/cluster/impl/ConfigFileBasedClusterMetadataProvider.java b/core/net/src/main/java/org/onosproject/cluster/impl/ConfigFileBasedClusterMetadataProvider.java
index 1773154..c1b5de1 100644
--- a/core/net/src/main/java/org/onosproject/cluster/impl/ConfigFileBasedClusterMetadataProvider.java
+++ b/core/net/src/main/java/org/onosproject/cluster/impl/ConfigFileBasedClusterMetadataProvider.java
@@ -15,19 +15,18 @@
  */
 package org.onosproject.cluster.impl;
 
-import static org.onlab.util.Tools.groupedThreads;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.net.HttpURLConnection;
-import java.net.URL;
-import java.util.Set;
-import java.util.concurrent.ScheduledExecutorService;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicReference;
-
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonDeserializer;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.JsonSerializer;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializerProvider;
+import com.fasterxml.jackson.databind.module.SimpleModule;
+import com.google.common.collect.Sets;
+import com.google.common.io.Files;
 import org.apache.felix.scr.annotations.Activate;
 import org.apache.felix.scr.annotations.Component;
 import org.apache.felix.scr.annotations.Deactivate;
@@ -48,22 +47,20 @@
 import org.onosproject.store.service.Versioned;
 import org.slf4j.Logger;
 
-import com.fasterxml.jackson.core.JsonGenerator;
-import com.fasterxml.jackson.core.JsonParser;
-import com.fasterxml.jackson.core.JsonProcessingException;
-import com.fasterxml.jackson.databind.DeserializationContext;
-import com.fasterxml.jackson.databind.JsonDeserializer;
-import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.JsonSerializer;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.SerializerProvider;
-import com.fasterxml.jackson.databind.module.SimpleModule;
-import com.google.common.base.Throwables;
-import com.google.common.collect.Sets;
-import com.google.common.io.Files;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.Set;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicReference;
 
 import static com.google.common.base.Preconditions.checkState;
 import static java.util.concurrent.Executors.newSingleThreadScheduledExecutor;
+import static org.onlab.util.Tools.groupedThreads;
+import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Provider of {@link ClusterMetadata cluster metadata} sourced from a local config file.
@@ -145,7 +142,7 @@
             cachedMetadata.set(fetchMetadata(metadataUrl));
             providerService.clusterMetadataChanged(new Versioned<>(metadata, configFile.lastModified()));
         } catch (IOException e) {
-            Throwables.propagate(e);
+            throw new IllegalArgumentException(e);
         }
     }
 
@@ -197,7 +194,7 @@
                 Thread.sleep((int) Math.pow(2, iterations < 7 ? ++iterations : iterations) * 10L);
             } catch (InterruptedException e) {
                 Thread.currentThread().interrupt();
-                throw Throwables.propagate(e);
+                throw new IllegalStateException(e);
             }
         }
     }
@@ -248,7 +245,7 @@
                                                        Sets.newHashSet(metadata.getPartitions())),
                                    version);
         } catch (IOException e) {
-            throw Throwables.propagate(e);
+            throw new IllegalArgumentException(e);
         }
     }