remove guava

gradle.properties

@@ -2,7 +2,6 @@ rx_java_version=1.0.9
 rx_netty_version=0.4.9
 servo_version=0.10.1
 hystrix_version=1.4.3
-guava_version=19.0
 archaius_version=0.7.6
 eureka_version=1.7.2
 jersey_version=1.19.1

ribbon-archaius/build.gradle

@@ -1,7 +1,6 @@
 dependencies {
     api "org.slf4j:slf4j-api:${slf4j_version}"
     api 'com.google.code.findbugs:annotations:2.0.0'
-    api "com.google.guava:guava:${guava_version}"
     api 'commons-configuration:commons-configuration:1.8'
     api 'commons-lang:commons-lang:2.6'
     api "com.netflix.archaius:archaius-core:${archaius_version}"

ribbon-core/build.gradle

@@ -1,7 +1,6 @@
 dependencies {
     api "org.slf4j:slf4j-api:${slf4j_version}"
     api 'com.google.code.findbugs:annotations:2.0.0'
-    api "com.google.guava:guava:${guava_version}"
     api 'commons-lang:commons-lang:2.6'
 
     testImplementation 'junit:junit:4.11'

ribbon-core/src/main/java/com/netflix/client/DefaultLoadBalancerRetryHandler.java

@@ -17,13 +17,14 @@
  */
 package com.netflix.client;
 
-import com.google.common.collect.Lists;
 import com.netflix.client.config.CommonClientConfigKey;
 import com.netflix.client.config.IClientConfig;
 
 import java.net.ConnectException;
 import java.net.SocketException;
 import java.net.SocketTimeoutException;
+import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 /**
@@ -36,12 +37,12 @@
 public class DefaultLoadBalancerRetryHandler implements RetryHandler {
 
     @SuppressWarnings("unchecked")
-    private List<Class<? extends Throwable>> retriable = 
-            Lists.<Class<? extends Throwable>>newArrayList(ConnectException.class, SocketTimeoutException.class);
+    private List<Class<? extends Throwable>> retriable =
+        new ArrayList<>(Arrays.asList(ConnectException.class, SocketTimeoutException.class));
 
     @SuppressWarnings("unchecked")
     private List<Class<? extends Throwable>> circuitRelated = 
-            Lists.<Class<? extends Throwable>>newArrayList(SocketException.class, SocketTimeoutException.class);
+            new ArrayList<>(Arrays.asList(SocketException.class, SocketTimeoutException.class));
 
     protected final int retrySameServer;
     protected final int retryNextServer;

ribbon-core/src/main/java/com/netflix/client/RequestSpecificRetryHandler.java

@@ -1,14 +1,13 @@
 package com.netflix.client;
 
-import com.google.common.base.Preconditions;
-import com.google.common.collect.Lists;
 import com.netflix.client.config.CommonClientConfigKey;
 import com.netflix.client.config.IClientConfig;
 
-import javax.annotation.Nullable;
+import java.util.Collections;
+import java.util.Objects;
 import java.net.SocketException;
 import java.util.List;
-import java.util.Optional;
+import javax.annotation.Nullable;
 
 /**
  * Implementation of RetryHandler created for each request which allows for request
@@ -22,15 +21,15 @@ public class RequestSpecificRetryHandler implements RetryHandler {
     private final boolean okToRetryOnConnectErrors;
     private final boolean okToRetryOnAllErrors;
 
-    protected List<Class<? extends Throwable>> connectionRelated = 
-            Lists.<Class<? extends Throwable>>newArrayList(SocketException.class);
+    protected List<Class<? extends Throwable>> connectionRelated =
+        Collections.singletonList(SocketException.class);
 
     public RequestSpecificRetryHandler(boolean okToRetryOnConnectErrors, boolean okToRetryOnAllErrors) {
         this(okToRetryOnConnectErrors, okToRetryOnAllErrors, RetryHandler.DEFAULT, null);    
     }
 
     public RequestSpecificRetryHandler(boolean okToRetryOnConnectErrors, boolean okToRetryOnAllErrors, RetryHandler baseRetryHandler, @Nullable IClientConfig requestConfig) {
-        Preconditions.checkNotNull(baseRetryHandler);
+        Objects.requireNonNull(baseRetryHandler);
         this.okToRetryOnConnectErrors = okToRetryOnConnectErrors;
         this.okToRetryOnAllErrors = okToRetryOnAllErrors;
         this.fallback = baseRetryHandler;

ribbon-core/src/main/java/com/netflix/client/config/CommonClientConfigKey.java

@@ -17,8 +17,6 @@
 */
 package com.netflix.client.config;
 
-import com.google.common.reflect.TypeToken;
-
 import java.lang.reflect.Field;
 import java.lang.reflect.Modifier;
 import java.lang.reflect.ParameterizedType;
@@ -28,8 +26,6 @@
 import java.util.Set;
 import java.util.concurrent.TimeUnit;
 
-import static com.google.common.base.Preconditions.checkArgument;
-
 public abstract class CommonClientConfigKey<T> implements IClientConfigKey<T> {
 
     public static final String DEFAULT_NAME_SPACE = "ribbon";
@@ -248,20 +244,20 @@ public Class type() {
 
     private final String configKey;
     private final Class<T> type;
-    private T defaultValue;
+    private final T defaultValue;
 
-    @SuppressWarnings("unchecked")
     protected CommonClientConfigKey(String configKey) {
         this(configKey, null);
     }
 
+    @SuppressWarnings("unchecked")
     protected CommonClientConfigKey(String configKey, T defaultValue) {
         this.configKey = configKey;
         Type superclass = getClass().getGenericSuperclass();
-        checkArgument(superclass instanceof ParameterizedType,
-                "%s isn't parameterized", superclass);
-        Type runtimeType = ((ParameterizedType) superclass).getActualTypeArguments()[0];
-        type = (Class<T>) TypeToken.of(runtimeType).getRawType();
+        if (!(superclass instanceof ParameterizedType)) {
+                throw new IllegalArgumentException(superclass + " isn't parameterized");
+        }
+        this.type = (Class<T>) ((ParameterizedType) superclass).getActualTypeArguments()[0];
         this.defaultValue = defaultValue;
     }
 

ribbon-core/src/main/java/com/netflix/client/config/ReloadableClientConfig.java

@@ -1,6 +1,6 @@
 package com.netflix.client.config;
 
-import com.google.common.base.Preconditions;
+import java.util.Objects;
 import org.apache.commons.lang.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -159,7 +159,7 @@ interface ReloadableProperty<T> extends Property<T> {
     }
 
     private synchronized <T> Property<T> getOrCreateProperty(final IClientConfigKey<T> key, final Supplier<Optional<T>> valueSupplier, final Supplier<T> defaultSupplier) {
-        Preconditions.checkNotNull(valueSupplier, "defaultValueSupplier cannot be null");
+        Objects.requireNonNull(valueSupplier, "defaultValueSupplier cannot be null");
 
         return (Property<T>)dynamicProperties.computeIfAbsent(key, ignore -> new ReloadableProperty<T>() {
                 private volatile Optional<T> current = Optional.empty();
@@ -355,7 +355,7 @@ protected final <T> void setDefault(IClientConfigKey<T> key) {
      * Store the default value for key while giving precedence to default values in the property resolver
      */
     protected final <T> void setDefault(IClientConfigKey<T> key, T value) {
-        Preconditions.checkArgument(key != null, "key cannot be null");
+        Objects.requireNonNull(key, "key cannot be null");
 
         value = resolveFromPropertyResolver(key).orElse(value);
         internalProperties.put(key, Optional.ofNullable(value));
@@ -367,7 +367,7 @@ protected final <T> void setDefault(IClientConfigKey<T> key, T value) {
 
     @Override
     public <T> IClientConfig set(IClientConfigKey<T> key, T value) {
-        Preconditions.checkArgument(key != null, "key cannot be null");
+        Objects.requireNonNull(key, "key cannot be null");
 
         value = resolveValueToType(key, value);
         if (isDynamic) {
@@ -384,7 +384,7 @@ public <T> IClientConfig set(IClientConfigKey<T> key, T value) {
     @Override
     @Deprecated
     public void setProperty(IClientConfigKey key, Object value) {
-        Preconditions.checkArgument(value != null, "Value may not be null");
+        Objects.requireNonNull(value, "Value may not be null");
         set(key, value);
     }
 

ribbon-core/src/main/java/com/netflix/client/ssl/URLSslContextFactory.java

@@ -29,9 +29,6 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import com.google.common.base.Preconditions;
-import com.google.common.base.Strings;
-
 /**
  * Secure socket factory that is used the NIWS code if a non-standard key store or trust store
  * is specified.
@@ -100,8 +97,11 @@ private static KeyStore createKeyStore(final URL storeFile, final String passwor
     	if(storeFile == null){
     		return null;
     	}
-
-    	Preconditions.checkArgument(StringUtils.isNotEmpty(password), "Null keystore should have empty password, defined keystore must have password");
+
+			if (StringUtils.isEmpty(password)) {
+				throw new IllegalArgumentException(
+						"Null keystore should have empty password, defined keystore must have password");
+			}
 
     	KeyStore keyStore = null;
 
@@ -139,13 +139,17 @@ public String toString() {
 
         builder.append("ClientSslSocketFactory [trustStoreUrl=").append(trustStoreUrl);
         if (trustStoreUrl != null) {
-            builder.append(", trustStorePassword=");
-            builder.append(Strings.repeat("*", this.getTrustStorePasswordLength()));
+						builder.append(", trustStorePassword=");
+						for (int i = 0; i < this.getTrustStorePasswordLength(); i++) {
+								builder.append("*");
+						}
         }
         builder.append(", keyStoreUrl=").append(keyStoreUrl);
         if (keyStoreUrl != null) {
             builder.append(", keystorePassword = ");
-            builder.append(Strings.repeat("*", this.getKeyStorePasswordLength()));
+						for (int i = 0; i < this.getKeyStorePasswordLength(); i++) {
+								builder.append("*");
+						}
         }
         builder.append(']');
 

ribbon-core/src/main/java/com/netflix/client/util/ThreadUtils.java

@@ -0,0 +1,16 @@
+package com.netflix.client.util;
+
+import java.util.concurrent.Executors;
+import java.util.concurrent.ThreadFactory;
+
+public class ThreadUtils {
+
+  public static ThreadFactory threadFactory(String name) {
+    return r -> {
+      Thread thread = Executors.defaultThreadFactory().newThread(r);
+      thread.setName(name);
+      thread.setDaemon(true);
+      return thread;
+    };
+  }
+}

ribbon-core/src/test/java/com/netflix/client/config/CommonClientConfigKeyTest.java

@@ -2,17 +2,19 @@
 
 import static org.junit.Assert.*;
 
+
 import org.junit.Test;
 
-import com.google.common.collect.Sets;
+import java.util.Arrays;
+import java.util.HashSet;
 
 public class CommonClientConfigKeyTest {
 
     @Test
     public void testCommonKeys() {
         IClientConfigKey[] keys = CommonClientConfigKey.values();
         assertTrue(keys.length > 30);
-        assertEquals(Sets.newHashSet(keys), CommonClientConfigKey.keys());
+        assertEquals(new HashSet<>(Arrays.asList(keys)), CommonClientConfigKey.keys());
         assertTrue(CommonClientConfigKey.keys().contains(CommonClientConfigKey.ConnectTimeout));
     }
 }

ribbon-eureka/src/main/java/com/netflix/niws/loadbalancer/EurekaNotificationServerListUpdater.java

@@ -1,6 +1,7 @@
 package com.netflix.niws.loadbalancer;
 
-import com.google.common.util.concurrent.ThreadFactoryBuilder;
+import static com.netflix.client.util.ThreadUtils.threadFactory;
+
 import com.netflix.config.DynamicIntProperty;
 import com.netflix.discovery.CacheRefreshedEvent;
 import com.netflix.discovery.EurekaClient;
@@ -45,16 +46,12 @@ private static class LazyHolder {
         private LazyHolder() {
             int corePoolSize = getCorePoolSize();
             defaultServerListUpdateExecutor = new ThreadPoolExecutor(
-                    corePoolSize,
-                    corePoolSize * 5,
-                    0,
-                    TimeUnit.NANOSECONDS,
-                    new ArrayBlockingQueue<Runnable>(queueSizeProp.get()),
-                    new ThreadFactoryBuilder()
-                            .setNameFormat("EurekaNotificationServerListUpdater-%d")
-                            .setDaemon(true)
-                            .build()
-            );
+                corePoolSize,
+                corePoolSize * 5,
+                0,
+                TimeUnit.NANOSECONDS,
+                new ArrayBlockingQueue<Runnable>(queueSizeProp.get()),
+                    threadFactory("EurekaNotificationServerListUpdater-%d"));
 
             poolSizeProp.addCallback(new Runnable() {
                 @Override

ribbon-eureka/src/test/java/com/netflix/niws/loadbalancer/EurekaNotificationServerListUpdaterTest.java

@@ -1,18 +1,20 @@
 package com.netflix.niws.loadbalancer;
 
-import com.google.common.util.concurrent.ThreadFactoryBuilder;
+import static com.netflix.client.util.ThreadUtils.threadFactory;
+
 import com.netflix.discovery.CacheRefreshedEvent;
 import com.netflix.discovery.EurekaClient;
 import com.netflix.discovery.EurekaEventListener;
 import com.netflix.loadbalancer.ServerListUpdater;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ThreadFactory;
 import org.easymock.Capture;
 import org.easymock.EasyMock;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 
 import javax.inject.Provider;
-import java.util.Queue;
 import java.util.concurrent.ArrayBlockingQueue;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.RejectedExecutionException;
@@ -42,11 +44,7 @@ public void setUp() {
                 0,
                 TimeUnit.NANOSECONDS,
                 new ArrayBlockingQueue<Runnable>(1000),
-                new ThreadFactoryBuilder()
-                        .setNameFormat("EurekaNotificationServerListUpdater-%d")
-                        .setDaemon(true)
-                        .build()
-        );
+                    threadFactory("EurekaNotificationServerListUpdater-%d"));
     }
 
     @Test

ribbon-eureka/src/test/java/com/netflix/niws/loadbalancer/LBBuilderTest.java

@@ -1,6 +1,5 @@
 package com.netflix.niws.loadbalancer;
 
-import com.google.common.collect.Lists;
 import com.netflix.appinfo.InstanceInfo;
 import com.netflix.client.config.DefaultClientConfigImpl;
 import com.netflix.client.config.IClientConfig;
@@ -23,6 +22,9 @@
 import com.netflix.loadbalancer.ServerListUpdater;
 import com.netflix.loadbalancer.ZoneAffinityServerListFilter;
 import com.netflix.loadbalancer.ZoneAwareLoadBalancer;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
 import org.apache.commons.configuration.Configuration;
 import org.junit.Before;
 import org.junit.Ignore;
@@ -90,7 +92,7 @@ public void testBuildWithDiscoveryEnabledNIWSServerList() {
                 .withServerListFilter(filter)
                 .buildDynamicServerListLoadBalancer();
         assertNotNull(lb);
-        assertEquals(Lists.newArrayList(expected), lb.getAllServers());
+        assertEquals(Collections.singletonList(expected), lb.getAllServers());
         assertSame(filter, lb.getFilter());
         assertSame(list, lb.getServerListImpl());
         Server server = lb.chooseServer();
@@ -111,7 +113,7 @@ public void testBuildWithDiscoveryEnabledNIWSServerListAndUpdater() {
                 .withServerListUpdater(updater)
                 .buildDynamicServerListLoadBalancerWithUpdater();
         assertNotNull(lb);
-        assertEquals(Lists.newArrayList(expected), lb.getAllServers());
+        assertEquals(Collections.singletonList(expected), lb.getAllServers());
         assertSame(filter, lb.getFilter());
         assertSame(list, lb.getServerListImpl());
         assertSame(updater, lb.getServerListUpdater());
@@ -139,12 +141,12 @@ public void testBuildWithArchaiusProperties() {
         assertTrue(dynamicLB.getFilter() instanceof ZoneAffinityServerListFilter);
         assertTrue(dynamicLB.getRule() instanceof RoundRobinRule);
         assertTrue(dynamicLB.getPing() instanceof DummyPing);
-        assertEquals(Lists.newArrayList(expected), lb.getAllServers());
+        assertEquals(Collections.singletonList(expected), lb.getAllServers());
     }
 
     @Test
     public void testBuildStaticServerListLoadBalancer() {
-        List<Server> list = Lists.newArrayList(expected, expected);
+        List<Server> list = new ArrayList<>(Arrays.asList(expected, expected));
         IRule rule = new AvailabilityFilteringRule();
         IClientConfig clientConfig = IClientConfig.Builder.newBuilder()
                 .withDefaultValues()

ribbon-examples/build.gradle

@@ -12,7 +12,6 @@ dependencies {
     api 'org.codehaus.jackson:jackson-mapper-asl:1.9.11'
     api 'com.thoughtworks.xstream:xstream:1.4.5'
     api "com.sun.jersey:jersey-server:${jersey_version}"
-    api "com.google.guava:guava:${guava_version}"
     api "com.netflix.archaius:archaius-core:${archaius_version}"
     testImplementation 'junit:junit:4.11'
 }