Big Data with Jasvant

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Thursday, 14 August 2025

Java 21 with Spring Security 6.5.2, Oauth2 and AWS Cognito Pool

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Recently we were trying to migrate our spring boot application to Java 21 and latest spring boot version to for enhancing security of our ap...
Friday, 8 November 2024

NewRelic error with spring boot

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 Recently we added two datasources to our application and our application worked fine without newRelic. But as soon as we added newRelic to ...
Thursday, 24 October 2024

Adding CORS headers to python flask server

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 Recently we were trying to add CORS headers to a python flask web server to allow our react website to be allowed to make call to APIs host...
Monday, 15 April 2024

Allowing Client to Client connect on VPN

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Recently we were trying to debug an application with two developers one backend developer and one frontend developer. We were working in wor...
Tuesday, 12 March 2024

java.time.ZonedDateTime not supported in ObjectMapper

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Recently I was trying to serialize a Java object into json using ObjectMapper but encountered the following exception com.fasterxml.jackson...
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