diff --git a/src/main/java/com/appdirect/sdk/meteredusage/service/MeteredUsageApiClientServiceImpl.java b/src/main/java/com/appdirect/sdk/meteredusage/service/MeteredUsageApiClientServiceImpl.java
index 0432989d..4ce017e4 100644
--- a/src/main/java/com/appdirect/sdk/meteredusage/service/MeteredUsageApiClientServiceImpl.java
+++ b/src/main/java/com/appdirect/sdk/meteredusage/service/MeteredUsageApiClientServiceImpl.java
@@ -1,6 +1,7 @@
 package com.appdirect.sdk.meteredusage.service;
 
 import java.io.IOException;
+import java.util.Collections;
 import java.util.List;
 import java.util.UUID;
 
@@ -22,7 +23,6 @@
 import com.appdirect.sdk.meteredusage.model.MeteredUsageResponse;
 import com.google.common.annotations.VisibleForTesting;
 import com.google.gdata.util.common.base.Preconditions;
-import com.google.inject.internal.Lists;
 import retrofit2.Response;
 
 @Slf4j
@@ -40,17 +40,17 @@ public MeteredUsageApiClientServiceImpl(DeveloperSpecificAppmarketCredentialsSup
 
 	@Override
 	public APIResult reportUsage(String baseUrl, String secretKey, String idempotentKey, MeteredUsageItem meteredUsageItem, boolean billable) {
-		return reportUsage(baseUrl, secretKey, idempotentKey, Lists.newArrayList(meteredUsageItem), billable);
+		return reportUsage(baseUrl, secretKey, idempotentKey, Collections.singletonList(meteredUsageItem), billable);
 	}
 
 	@Override
 	public APIResult reportUsage(String baseUrl, String secretKey, MeteredUsageItem meteredUsageItem, boolean billable) {
-		return reportUsage(baseUrl, secretKey, UUID.randomUUID().toString(), Lists.newArrayList(meteredUsageItem), billable);
+		return reportUsage(baseUrl, secretKey, UUID.randomUUID().toString(), Collections.singletonList(meteredUsageItem), billable);
 	}
 
 	@Override
 	public APIResult reportUsage(String baseUrl, String secretKey, MeteredUsageItem meteredUsageItem, boolean billable, String sourceType) {
-		return reportUsage(baseUrl, secretKey, UUID.randomUUID().toString(), Lists.newArrayList(meteredUsageItem), billable, sourceType);
+		return reportUsage(baseUrl, secretKey, UUID.randomUUID().toString(), Collections.singletonList(meteredUsageItem), billable, sourceType);
 	}
 
 	@Override
@@ -70,12 +70,12 @@ public APIResult reportUsage(String baseUrl, String secretKey, String idempotent
 
 	@Override
 	public APIResult reportUsage(String baseUrl, String idempotentKey, MeteredUsageItem meteredUsageItem, boolean billable, String secretKey, String secret) {
-		return reportUsage(baseUrl, idempotentKey, Lists.newArrayList(meteredUsageItem), billable, secretKey, secret, org.apache.commons.lang3.StringUtils.EMPTY);
+		return reportUsage(baseUrl, idempotentKey, Collections.singletonList(meteredUsageItem), billable, secretKey, secret, org.apache.commons.lang3.StringUtils.EMPTY);
 	}
 
 	@Override
 	public APIResult reportUsage(String baseUrl, MeteredUsageItem meteredUsageItem, boolean billable, String secretKey, String secret) {
-		return reportUsage(baseUrl, UUID.randomUUID().toString(), Lists.newArrayList(meteredUsageItem), billable, secretKey, secret, org.apache.commons.lang3.StringUtils.EMPTY);
+		return reportUsage(baseUrl, UUID.randomUUID().toString(), Collections.singletonList(meteredUsageItem), billable, secretKey, secret, org.apache.commons.lang3.StringUtils.EMPTY);
 	}
 
 	@Override
@@ -85,7 +85,7 @@ public APIResult reportUsage(String baseUrl, List<MeteredUsageItem> meteredUsage
 
 	@Override
 	public APIResult reportUsage(String baseUrl, MeteredUsageItem meteredUsageItem, boolean billable, String secretKey, String secret, String sourceType) {
-		return reportUsage(baseUrl, UUID.randomUUID().toString(), Lists.newArrayList(meteredUsageItem), billable, secretKey, secret, sourceType);
+		return reportUsage(baseUrl, UUID.randomUUID().toString(), Collections.singletonList(meteredUsageItem), billable, secretKey, secret, sourceType);
 	}
 
 	@Override
diff --git a/src/test/java/com/appdirect/sdk/meteredusage/mother/MeteredUsageItemMother.java b/src/test/java/com/appdirect/sdk/meteredusage/mother/MeteredUsageItemMother.java
index 2dc020d7..54057b11 100644
--- a/src/test/java/com/appdirect/sdk/meteredusage/mother/MeteredUsageItemMother.java
+++ b/src/test/java/com/appdirect/sdk/meteredusage/mother/MeteredUsageItemMother.java
@@ -1,14 +1,15 @@
 package com.appdirect.sdk.meteredusage.mother;
 
+import java.util.Collections;
+
 import com.appdirect.sdk.meteredusage.model.MeteredUsageItem;
 import com.appdirect.sdk.utils.ConstantUtils;
-import com.google.inject.internal.Lists;
 
 public class MeteredUsageItemMother {
 	public static MeteredUsageItem.MeteredUsageItemBuilder basic() {
 		return MeteredUsageItem.builder()
 				.accountId(ConstantUtils.ACCOUNT_ID)
-				.usageList(Lists.newArrayList(UsageItemMother.basic().build()));
+				.usageList(Collections.singletonList(UsageItemMother.basic().build()));
 	}
 
 	public static MeteredUsageItem.MeteredUsageItemBuilder withSubscriptionId() {
diff --git a/src/test/java/com/appdirect/sdk/meteredusage/service/MeteredUsageApiClientServiceTest.java b/src/test/java/com/appdirect/sdk/meteredusage/service/MeteredUsageApiClientServiceTest.java
index 5738bc75..141f2a70 100644
--- a/src/test/java/com/appdirect/sdk/meteredusage/service/MeteredUsageApiClientServiceTest.java
+++ b/src/test/java/com/appdirect/sdk/meteredusage/service/MeteredUsageApiClientServiceTest.java
@@ -30,7 +30,6 @@
 import com.appdirect.sdk.meteredusage.model.MeteredUsageResponse;
 import com.appdirect.sdk.meteredusage.mother.MeteredUsageItemMother;
 import com.appdirect.sdk.utils.ConstantUtils;
-import com.google.inject.internal.Lists;
 import okhttp3.MediaType;
 import okhttp3.ResponseBody;
 import okio.Buffer;
@@ -65,7 +64,7 @@ public void testBillUsage_noErrors() {
 		MeteredUsageApi meteredUsageApi = mock(MeteredUsageApi.class);
 		Response<MeteredUsageResponse> response = buildResponse(requestAccepted);
 		Call<MeteredUsageResponse> call = new RetrofitCallStub(response).getCall();
-		List<MeteredUsageItem> items = Lists.newArrayList(meteredUsageItem);
+		List<MeteredUsageItem> items = Collections.singletonList(meteredUsageItem);
 
 		doReturn(call).when(meteredUsageApi).meteredUsageCall(any());
 		doReturn(meteredUsageApi).when(meteredUsageApiClientService).createMeteredUsageApi(ConstantUtils.BASE_URL, ConstantUtils.CONSUMER_KEY, ConstantUtils.CONSUMER_SECRET);
@@ -85,7 +84,7 @@ public void testSourceTypeUsage_noErrors() {
 		MeteredUsageApi meteredUsageApi = mock(MeteredUsageApi.class);
 		Response<MeteredUsageResponse> response = buildResponse(requestAccepted);
 		Call<MeteredUsageResponse> call = new RetrofitCallStub(response).getCall();
-		List<MeteredUsageItem> items = Lists.newArrayList(meteredUsageItem);
+		List<MeteredUsageItem> items = Collections.singletonList(meteredUsageItem);
 
 		doReturn(call).when(meteredUsageApi).meteredUsageCall(any());
 		doReturn(meteredUsageApi).when(meteredUsageApiClientService).createMeteredUsageApi(ConstantUtils.BASE_URL, ConstantUtils.CONSUMER_KEY, ConstantUtils.CONSUMER_SECRET);
@@ -105,7 +104,7 @@ public void testBillUsage_unsuccessfulCall() {
 		MeteredUsageApi meteredUsageApi = mock(MeteredUsageApi.class);
 		Response<MeteredUsageResponse> response = buildResponse(httpStatus, ErrorCode.UNKNOWN_ERROR.toString());
 		Call<MeteredUsageResponse> call = new RetrofitCallStub(response).getCall();
-		List<MeteredUsageItem> items = Lists.newArrayList(meteredUsageItem);
+		List<MeteredUsageItem> items = Collections.singletonList(meteredUsageItem);
 
 		doReturn(call).when(meteredUsageApi).meteredUsageCall(any());
 		doReturn(meteredUsageApi).when(meteredUsageApiClientService).createMeteredUsageApi(ConstantUtils.BASE_URL, ConstantUtils.CONSUMER_KEY, ConstantUtils.CONSUMER_SECRET);
@@ -125,7 +124,7 @@ public void testBillUsageNullSecret_noErrors() {
 		MeteredUsageApi meteredUsageApi = mock(MeteredUsageApi.class);
 		Response<MeteredUsageResponse> response = buildResponse(requestAccepted);
 		Call<MeteredUsageResponse> call = new RetrofitCallStub(response).getCall();
-		List<MeteredUsageItem> items = Lists.newArrayList(meteredUsageItem);
+		List<MeteredUsageItem> items = Collections.singletonList(meteredUsageItem);
 
 		doReturn(call).when(meteredUsageApi).meteredUsageCall(any());
 		doReturn(meteredUsageApi).when(meteredUsageApiClientService).createMeteredUsageApi(ConstantUtils.BASE_URL, ConstantUtils.CONSUMER_KEY, null);
@@ -145,7 +144,7 @@ public void testBillUsageNullSecret_unsuccessfulCall() {
 		MeteredUsageApi meteredUsageApi = mock(MeteredUsageApi.class);
 		Response<MeteredUsageResponse> response = buildResponse(httpStatus, ErrorCode.UNKNOWN_ERROR.toString());
 		Call<MeteredUsageResponse> call = new RetrofitCallStub(response).getCall();
-		List<MeteredUsageItem> items = Lists.newArrayList(meteredUsageItem);
+		List<MeteredUsageItem> items = Collections.singletonList(meteredUsageItem);
 
 		doReturn(call).when(meteredUsageApi).meteredUsageCall(any());
 		doReturn(meteredUsageApi).when(meteredUsageApiClientService).createMeteredUsageApi(ConstantUtils.BASE_URL, ConstantUtils.CONSUMER_KEY, null);