Assume Role : Unable to load credentials from system settings

Created a Java application and deployed in an EC2 instance, associated the EC2 Instance profile role to the Instance

While making calls to the AWS APIs through AWS Java SDK V2 as well as V1 getting the below error

KmsClient client = KmsClient.builder().region(amazonSessionMapper.getRegion()).build();

Unable to load credentials from system settings. Access key must be specified either via environment variable (AWS_ACCESS_KEY_ID) or system property (aws.accessKeyId).

FINEST|1432182/0|Service controller|22-01-20 13:49:37|software.amazon.awssdk.core.exception.SdkClientException: Unable to load credentials from system settings. Access key must be specified either via environment variable (AWS_ACCESS_KEY_ID) or system property (aws.accessKeyId).
FINEST|1432182/0|Service controller|22-01-20 13:49:37|	at software.amazon.awssdk.core.exception.SdkClientException$BuilderImpl.build(SdkClientException.java:98) ~[software.amazon.awssdk-sdk-core-2.16.84.jar:?]
FINEST|1432182/0|Service controller|22-01-20 13:49:37|	at software.amazon.awssdk.auth.credentials.internal.SystemSettingsCredentialsProvider.resolveCredentials(SystemSettingsCredentialsProvider.java:58) ~[software.amazon.awssdk-auth-2.16.84.jar:?]
FINEST|1432182/0|Service controller|22-01-20 13:49:37|	at software.amazon.awssdk.auth.credentials.AwsCredentialsProviderChain.resolveCredentials(AwsCredentialsProviderChain.java:91) ~[software.amazon.awssdk-auth-2.16.84.jar:?]
FINEST|1432182/0|Service controller|22-01-20 13:49:37|	at software.amazon.awssdk.auth.credentials.internal.LazyAwsCredentialsProvider.resolveCredentials(LazyAwsCredentialsProvider.java:45) ~[software.amazon.awssdk-auth-2.16.84.jar:?]
FINEST|1432182/0|Service controller|22-01-20 13:49:37|	at software.amazon.awssdk.auth.credentials.DefaultCredentialsProvider.resolveCredentials(DefaultCredentialsProvider.java:104) ~[software.amazon.awssdk-auth-2.16.84.jar:?]
FINEST|1432182/0|Service controller|22-01-20 13:49:37|	at software.amazon.awssdk.awscore.client.handler.AwsClientHandlerUtils.createExecutionContext(AwsClientHandlerUtils.java:79) ~[software.amazon.awssdk-aws-core-2.16.84.jar:?]
FINEST|1432182/0|Service controller|22-01-20 13:49:37|	at software.amazon.awssdk.awscore.client.handler.AwsSyncClientHandler.createExecutionContext(AwsSyncClientHandler.java:68) ~[software.amazon.awssdk-aws-core-2.16.84.jar:?]
FINEST|1432182/0|Service controller|22-01-20 13:49:37|	at software.amazon.awssdk.core.internal.handler.BaseSyncClientHandler.lambda$execute$1(BaseSyncClientHandler.java:99) ~[software.amazon.awssdk-sdk-core-2.16.84.jar:?]
FINEST|1432182/0|Service controller|22-01-20 13:49:37|	at software.amazon.awssdk.core.internal.handler.BaseSyncClientHandler.measureApiCallSuccess(BaseSyncClientHandler.java:169) [software.amazon.awssdk-sdk-core-2.16.84.jar:?]
FINEST|1432182/0|Service controller|22-01-20 13:49:37|	at software.amazon.awssdk.core.internal.handler.BaseSyncClientHandler.execute(BaseSyncClientHandler.java:95) [software.amazon.awssdk-sdk-core-2.16.84.jar:?]
FINEST|1432182/0|Service controller|22-01-20 13:49:37|	at software.amazon.awssdk.core.client.handler.SdkSyncClientHandler.execute(SdkSyncClientHandler.java:45) [software.amazon.awssdk-sdk-core-2.16.84.jar:?]
FINEST|1432182/0|Service controller|22-01-20 13:49:37|	at software.amazon.awssdk.awscore.client.handler.AwsSyncClientHandler.execute(AwsSyncClientHandler.java:55) [software.amazon.awssdk-aws-core-2.16.84.jar:?]
FINEST|1432182/0|Service controller|22-01-20 13:49:37|	at software.amazon.awssdk.services.kms.DefaultKmsClient.listAliases(DefaultKmsClient.java:4466) [software.amazon.awssdk-kms-2.16.84.jar:?]
FINEST|1432182/0|Service controller|22-01-20 13:49:37|	at software.amazon.awssdk.services.kms.KmsClient.listAliases(KmsClient.java:7885) [software.amazon.awssdk-kms-2.16.84.jar:?]