DefaultProfile inconsistent behavior

[jiaheng]

• Product and API: KMS, SecretManagerClient
• Platform: Java
• Mininum Code:

            DefaultProfile profile = DefaultProfile.getProfile(region);
            profile.setCloseTrace(true);
            SecretManagerClient secretManagerClient =
                    BaseSecretManagerClientBuilder.standard()
                            .withCredentialsProvider(
                                    createCredentialsProvider(assumeRoleArn, region))
                            .withRegion(region)
                            .build();
            return SecretCacheClientBuilder.newCacheClientBuilder(secretManagerClient).build();

I noticed a potential inconsistency in the DefaultProfile class, particularly in lines 70-72:

aliyun-openapi-java-sdk/aliyun-java-sdk-core/src/main/java/com/aliyuncs/profile/DefaultProfile.java

Lines 70 to 72 in 01ed0d0

	public synchronized static DefaultProfile getProfile(String regionId) {
	return new DefaultProfile(regionId);
	}

Most of the getProfile methods assign a new DefaultProfile instance to the profile variable, but one method does not follow this pattern. This discrepancy could impact clients relying on this profile, potentially leading to issues like inconsistent trace disabling behavior. Could you clarify if this is the intended behavior or if it might be a bug?