diff --git a/amazon-kinesis-client-multilang/pom.xml b/amazon-kinesis-client-multilang/pom.xml
index e213c3fd..51b2f481 100644
--- a/amazon-kinesis-client-multilang/pom.xml
+++ b/amazon-kinesis-client-multilang/pom.xml
@@ -134,6 +134,7 @@
           <configuration>
             <release>8</release>
             <encoding>UTF-8</encoding>
+            <failOnWarning>true</failOnWarning>
           </configuration>
         </plugin>
       </plugins>
diff --git a/amazon-kinesis-client-multilang/src/main/java/software/amazon/kinesis/coordinator/KinesisClientLibConfiguration.java b/amazon-kinesis-client-multilang/src/main/java/software/amazon/kinesis/coordinator/KinesisClientLibConfiguration.java
index 179eb9e4..2bc6a5b8 100644
--- a/amazon-kinesis-client-multilang/src/main/java/software/amazon/kinesis/coordinator/KinesisClientLibConfiguration.java
+++ b/amazon-kinesis-client-multilang/src/main/java/software/amazon/kinesis/coordinator/KinesisClientLibConfiguration.java
@@ -966,13 +966,6 @@ public class KinesisClientLibConfiguration {
         return shutdownGraceMillis;
     }
 
-    /**
-     * @return Interval in milliseconds between retrying the scheduler initialization.
-     */
-    public long getSchedulerInitializationBackoffTimeMillis() {
-        return schedulerInitializationBackoffTimeMillis;
-    }
-
     /*
      * // CHECKSTYLE:IGNORE HiddenFieldCheck FOR NEXT 190 LINES
      * /**
diff --git a/amazon-kinesis-client-multilang/src/main/java/software/amazon/kinesis/multilang/config/AWSCredentialsProviderPropertyValueDecoder.java b/amazon-kinesis-client-multilang/src/main/java/software/amazon/kinesis/multilang/config/AWSCredentialsProviderPropertyValueDecoder.java
index 8110d4f7..6d924cce 100644
--- a/amazon-kinesis-client-multilang/src/main/java/software/amazon/kinesis/multilang/config/AWSCredentialsProviderPropertyValueDecoder.java
+++ b/amazon-kinesis-client-multilang/src/main/java/software/amazon/kinesis/multilang/config/AWSCredentialsProviderPropertyValueDecoder.java
@@ -98,7 +98,7 @@ class AWSCredentialsProviderPropertyValueDecoder implements IPropertyValueDecode
                 provider = constructProvider(providerName, () -> {
                     Class<?>[] argTypes = new Class<?>[nameAndArgs.length - 1];
                     Arrays.fill(argTypes, String.class);
-                    return clazz.getConstructor(argTypes).newInstance(varargs);
+                    return clazz.getConstructor(argTypes).newInstance((Object[]) varargs);
                 });
 
                 if (provider == null) {
diff --git a/amazon-kinesis-client/pom.xml b/amazon-kinesis-client/pom.xml
index e34095c3..d8778c30 100644
--- a/amazon-kinesis-client/pom.xml
+++ b/amazon-kinesis-client/pom.xml
@@ -189,6 +189,7 @@
           <configuration>
             <release>8</release>
             <encoding>UTF-8</encoding>
+            <failOnWarning>true</failOnWarning>
           </configuration>
         </plugin>
       </plugins>
diff --git a/pom.xml b/pom.xml
index 272d29cf..e41a2de1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -34,6 +34,7 @@
 
   <properties>
     <awssdk.version>2.25.11</awssdk.version>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>
 
   <licenses>