Found a flaky test in amazon-pay-api-sdk-java/

[Sujishark]

Found a new flaky test in amazon-pay-api-sdk-java/

com.amazon.pay.api.UtilTest.testEnhanceResponseWithShippingAddressList

Error Logs:

com.amazon.pay.api.UtilTest.testEnhanceResponseWithShippingAddressList -- Time elapsed: 0.002 s <<< FAILURE!
org.junit.ComparisonFailure: expected:<...pingAddressList":[{"[city":null,"addressId":"amzn1.address.ABC","phoneNumber":"8910111213","postalCode":"123-4567","stateOrRegion":"MNO","county":null,"addressLine3":null,"name":"DEF","district":null,"countryCode":"JP","addressLine2":"JKL","addressLine1":"GHI"]}]}> but was:<...pingAddressList":[{"[postalCode":"123-4567","county":null,"addressId":"amzn1.address.ABC","phoneNumber":"8910111213","countryCode":"JP","addressLine3":null,"addressLine1":"GHI","addressLine2":"JKL","name":"DEF","stateOrRegion":"MNO","city":null,"district":null]}]}>
	at org.junit.Assert.assertEquals(Assert.java:117)
	at org.junit.Assert.assertEquals(Assert.java:146)
	at com.amazon.pay.api.UtilTest.testEnhanceResponseWithShippingAddressList(UtilTest.java:257)

I've fixed this flaky test and raised a tentative PR as well.
Sujishark/amazon-pay-api-sdk-java#1

Once merged into IDoFT, I'll raise a real PR for the fix.

[darko-marinov]

I'm still not sure about the difference between similar and equals, but feel free to open a real PR when confident and change the status to Opened.

[Sujishark]

Opened real PR: amzn/amazon-pay-api-sdk-java#21