warning messages when container is deployed in Kie server - wildfly

Question

I am using kie server with widfly 24. I am able to successfully bring up the kie server. But when I deploy a container to it. I get lot of warning messages on one of the maven dependency. How to get rid of these warning messages.
19:55:37,437 WARN [org.kie.server.services.drools.DroolsKieServerExtension] (default task-1) Unable to create instance of type org.apache.commons.lang3.concurrent.locks.LockingVisitors$LockVisitor due to org.apache.commons.lang3.concurrent.locks.LockingVisitors$LockVisitor
19:55:37,443 WARN [org.kie.server.services.drools.DroolsKieServerExtension] (default task-1) Unable to create instance of type org.apache.commons.lang3.Streams$FailableStream due to org.apache.commons.lang3.Streams$FailableStream
19:55:37,444 WARN [org.kie.server.services.drools.DroolsKieServerExtension] (default task-1) Unable to create instance of type org.apache.commons.lang3.Streams$ArrayCollector due to org.apache.commons.lang3.Streams$ArrayCollector
19:55:37,448 WARN [org.kie.server.services.drools.DroolsKieServerExtension] (default task-1) Unable to create instance of type org.apache.commons.lang3.ClassLoaderUtils due to org.apache.commons.lang3.ClassLoaderUtils
19:55:37,449 WARN [org.kie.server.services.drools.DroolsKieServerExtension] (default task-1) Unable to create instance of type org.apache.commons.lang3.Charsets due to org.apache.commons.lang3.Charsets
19:55:37,450 WARN [org.kie.server.services.drools.DroolsKieServerExtension] (default task-1) Unable to create instance of type org.apache.commons.lang3.Functions$FailableSupplier due to org.apache.commons.lang3.Functions$FailableSupplier
19:55:37,452 WARN [org.kie.server.services.drools.DroolsKieServerExtension] (default task-1) Unable to create instance of type org.apache.commons.lang3.Streams due to org.apache.commons.lang3.Streams
19:55:37,771 INFO [org.reflections.Reflections] (default task-1) Reflections took 230 ms to scan 13 urls, producing 621 keys and 2755 values
19:55:37,774 WARN [org.reflections.Reflections] (default task-1) could not get type for name org.apache.velocity.context.Context from any class loader: org.reflections.ReflectionsException: could not get type for name org.apache.velocity.context.Context
at deployment.kie-server.war//org.reflections.ReflectionUtils.forName(ReflectionUtils.java:390)
at deployment.kie-server.war//org.reflections.Reflections.expandSuperTypes(Reflections.java:381)
at deployment.kie-server.war//org.reflections.Reflections.<init>(Reflections.java:126)
at deployment.kie-server.war//org.jbpm.kie.services.impl.KModuleDeploymentService.processClassloader(KModuleDeploymentService.java:479)
at deployment.kie-server.war//org.jbpm.kie.services.impl.KModuleDeploymentService.deploy(KModuleDeploymentService.java:204)
at deployment.kie-server.war//org.kie.server.services.jbpm.JbpmKieServerExtension.createContainer(JbpmKieServerExtension.java:455)
at deployment.kie-server.war//org.kie.server.services.impl.KieServerImpl.createContainer(KieServerImpl.java:331)
at deployment.kie-server.war//org.kie.server.remote.rest.common.resource.KieServerRestImpl.createContainer(KieServerRestImpl.java:155)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:138)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.core.ResourceMethodInvoker.internalInvokeOnTarget(ResourceMethodInvoker.java:546)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTargetAfterFilter(ResourceMethodInvoker.java:435)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.core.ResourceMethodInvoker.lambda$invokeOnTarget$0(ResourceMethodInvoker.java:396)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.core.interception.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:358)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:398)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:365)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:338)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:440)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.core.SynchronousDispatcher.lambda$invoke$4(SynchronousDispatcher.java:229)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.core.SynchronousDispatcher.lambda$preprocess$0(SynchronousDispatcher.java:135)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.core.interception.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:358)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.core.SynchronousDispatcher.preprocess(SynchronousDispatcher.java:138)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:215)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:245)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:61)
at org.jboss.resteasy.resteasy-jaxrs#3.15.1.Final//org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)
at javax.servlet.api#2.0.0.Final//javax.servlet.http.HttpServlet.service(HttpServlet.java:590)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
at io.opentracing.contrib.opentracing-jaxrs2//io.opentracing.contrib.jaxrs2.server.SpanFinishingFilter.doFilter(SpanFinishingFilter.java:52)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at org.wildfly.extension.undertow#24.0.1.Final//org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at io.undertow.core#2.2.8.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:117)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at io.undertow.core#2.2.8.Final//io.undertow.server.handlers.DisableCacheHandler.handleRequest(DisableCacheHandler.java:33)
at io.undertow.core#2.2.8.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.core#2.2.8.Final//io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:53)
at io.undertow.core#2.2.8.Final//io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:59)
at io.undertow.core#2.2.8.Final//io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.core#2.2.8.Final//io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at io.undertow.core#2.2.8.Final//io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.core#2.2.8.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow#24.0.1.Final//org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.core#2.2.8.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow#24.0.1.Final//org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:68)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.SendErrorPageHandler.handleRequest(SendErrorPageHandler.java:52)
at io.undertow.core#2.2.8.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:269)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:78)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:133)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:130)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at org.wildfly.extension.undertow#24.0.1.Final//org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105)
at org.wildfly.extension.undertow#24.0.1.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1535)
at org.wildfly.extension.undertow#24.0.1.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1535)
at org.wildfly.extension.undertow#24.0.1.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1535)
at org.wildfly.extension.undertow#24.0.1.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1535)
at io.undertow.servlet#2.2.8.Final//io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:249)
Even though warning messages are present I am able to use the kie-container successfully. My project kmodule.xml is as follows
<kmodule xmlns="http://www.drools.org/xsd/kmodule" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
kie-deployment-descriptor.xml is as follows:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<deployment-descriptor xsi:schemaLocation="http://www.jboss.org/jbpm deployment-descriptor.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<persistence-unit>org.jbpm.domain</persistence-unit>
<audit-persistence-unit>org.jbpm.domain</audit-persistence-unit>
<audit-mode>JPA</audit-mode>
<persistence-mode>JPA</persistence-mode>
<runtime-strategy>SINGLETON</runtime-strategy>
<marshalling-strategies/>
<event-listeners/>
<task-event-listeners/>
<globals/>
<work-item-handlers>
<work-item-handler>
<resolver>mvel</resolver>
<identifier>new com.radisys.workitem.rest.RESTTemplateWIH()</identifier>
<parameters/>
<name>AddUserTask</name>
</work-item-handler>
<work-item-handler>
<resolver>mvel</resolver>
<identifier>new com.radisys.workitem.rest.RESTTemplateWIH()</identifier>
<parameters/>
<name>GETUsersTask</name>
</work-item-handler>
<work-item-handler>
<resolver>mvel</resolver>
<identifier>new com.radisys.workitem.jsonparser.JsonParserWIH()</identifier>
<parameters/>
<name>JsonParserWIH</name>
</work-item-handler>
</work-item-handlers>
<environment-entries/>
<configurations/>
<required-roles/>
<remoteable-classes/>
<limit-serialization-classes>true</limit-serialization-classes>
</deployment-descriptor>
and pom.xml file is as below:
<?xml version="1.0" encoding="UTF-8"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<groupId>com.demo</groupId>
<artifactId>RESTTemplate</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>kjar</packaging>
<name>RESTTemplate</name>
<description>REST Template Implementation</description>
<properties>
<maven.compiler.source>13</maven.compiler.source>
<maven.compiler.target>13</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.kie</groupId>
<artifactId>kie-api</artifactId>
<version>7.48.0.Final</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.kie</groupId>
<artifactId>kie-internal</artifactId>
<version>7.48.0.Final</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.optaplanner</groupId>
<artifactId>optaplanner-core</artifactId>
<version>7.48.0.Final</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.optaplanner</groupId>
<artifactId>optaplanner-persistence-jaxb</artifactId>
<version>7.48.0.Final</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.thoughtworks.xstream</groupId>
<artifactId>xstream</artifactId>
<version>1.4.14</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.radisys</groupId>
<artifactId>RESTTemplate</artifactId>
<version>1.0-SNAPSHOT</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.example</groupId>
<artifactId>JsonParserModule</artifactId>
<version>1.0-SNAPSHOT</version>
<scope>compile</scope>
</dependency>
</dependencies>
<!-- <distributionManagement>
<repository>
<id>my-internal-site</id>
<url>file:///root/.m2/repository</url>
</repository>
</distributionManagement> -->
<build>
<plugins>
<plugin>
<groupId>org.kie</groupId>
<artifactId>kie-maven-plugin</artifactId>
<version>7.48.0.Final</version>
<extensions>true</extensions>
</plugin>
</plugins>
</build>
</project>
pom.xml file for the RESTemplateWIH is as below this is used as dependency in above pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.radisys</groupId>
<artifactId>RESTTemplate</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>kjar</packaging>
<name>RESTTemplatePjt</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>com.thoughtworks.xstream</groupId>
<artifactId>xstream</artifactId>
<version>1.4.10</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.kie</groupId>
<artifactId>kie-internal</artifactId>
<version>7.9.0.Final</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.optaplanner</groupId>
<artifactId>optaplanner-core</artifactId>
<version>7.9.0.Final</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.optaplanner</groupId>
<artifactId>optaplanner-persistence-jaxb</artifactId>
<version>7.9.0.Final</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.kie</groupId>
<artifactId>kie-api</artifactId>
<version>7.9.0.Final</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.12.3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.12.3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.json/json -->
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20201115</version>
</dependency>
<!-- https://mvnrepository.com/artifact/xerces/xercesImpl -->
<dependency>
<groupId>xerces</groupId>
<artifactId>xercesImpl</artifactId>
<version>2.6.2-jaxb-1.0.6</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.13</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.30</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter-engine -->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.7.1</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mockito/mockito-junit-jupiter -->
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-junit-jupiter</artifactId>
<version>3.9.0</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mockito/mockito-core -->
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>3.9.0</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.velocity/velocity-engine-core -->
<dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity-engine-core</artifactId>
<version>2.3</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.kie</groupId>
<artifactId>kie-maven-plugin</artifactId>
<version>7.9.0.Final</version>
<extensions>true</extensions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>13</source>
<target>13</target>
</configuration>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<!--This plugin's configuration is used to store Eclipse m2e settings only. It has no influence on the Maven build itself.-->
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.kie</groupId>
<artifactId>
kie-maven-plugin
</artifactId>
<versionRange>
[7.9.0.Final,)
</versionRange>
<goals>
<goal>injectreactive</goal>
<goal>build</goal>
<goal>generateModel</goal>
<goal>validateDMN</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore></ignore>
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>3.0.0-M5</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
Any help to get rid of these warning will be helpful.