Need simple Java Spring Cache POC


Please read the following Problem : It is simple if you have worked on Spring Cache

Currently I have a Map<Integer, List<String>> . The code runs like once a day. I want to use Java Spring Cache instead of this map. If the data is not found in cache, it should compare with the database. The LRU data should expire in favor of most recently used one.

You should also write the code for updating the cache when some new data is added to the DB and the next day the code runs, it should update the cache.

DB Example :

0 | “ABC”

1 | “ASD”

1 | “DEF”

2 | “AZX”

Cache ->

0 , <ABC>

1, <ASD, DEF>

2, <AZX>

Next day, the row 2 | “AHH” is added.

The cache should be updated with

2, <AZX, AHH>

Apart from LRU, I don't want the data to be expired on time basis.

Fixing Payara error with MySQL


I have an error most of time with my server :

[2019-04-01T11:15:16.642+0200] [Payara 4.1] [WARNING] [] [[login to view URL]] [tid: _ThreadID=34 _ThreadName=http-thread-pool(2)] [timeMillis: 1554110116642] [levelValue: 900] [[

RAR5114 : Error allocating connection : [Connection could not be allocated because: Could not create connection to database server. Attempted reconnect 20 times. Giving up.]]]

This is creating big big trouble with my project… If someone can fixe it, I'll pay him

Thank you for your help

Senior Oracle EBS Developer (Full Time)

•Drive processes and procedures related to Oracle EBS


•Oracle E-Business Suite R12.1

•On the integration of core modules with third-party systems

•Work with businesses users to gather requirements and create solutions for the business

•Work on business process design, discovery, and assessment phase of projects.

•Working with the business to brainstorm ideas, and translate those ideas into technical specifications for development

•Creating & maintaining both high-level and low-level design documents, getting the approved sign-offs.

•Developing new applications, new system integrations and new features within existing platforms

•Uncovering unique ideas that will enhance the business outcome

•Work Experience with Java is also required

Multi Video Call Live Broadcast Streaming Mobile Application

I need a mobile live streaming application same like Bigo/Mico/Uplive/Live with some additional features..

Peoples who have experience in Kind of Bigo & Mico Live Stream applications then Bid otherwise don't Bid and don't waste time..

YouTube kind of Live Streaming Developer please don't Bid… This is not that kind of Project…

Features of the App

oSingle / Multi Live Streaming ( Audio and Video)

oPrivate Live & Public Live same as Bigo Concept

oVirtual Gifts with AI

oFriends / Following / Fans

oDiscover Friends using Countries & Region / Hot Live / Newbies / Interests

oPK Challenge


oInstant Messaging

oCoin Purchasing through Online / Offline


oUser Level

oEntrance Effects

oFace Effects

oBeauty Camera

oNear By Users by Miles and Kilometers

oHot Live user Filter by Categories

oTop Rankers

oMy Top Fans

oMy Guardian

oMy Recent Visitors

oUnique ID – Can change Once

oInterest in Profiles

oVerification Methods Using Google, Facebook, Instagram & Phone Verification

oFriend's Moments

oCreate or Discover Group

oVIP Membership

oIncome – Can change Gifts to Coins

oTask Center – Check in / Watch Live / Chat in Live

oExtra Bonus

oBaggage & Tools

oRanking Details (Top Gift Got & Top Gift Sent) Locally & Globally

oRewards (Broadcasting Rewards / Viewer Rewards / My Rewards)

oScan QR Code to Mingle with Friends

oFeedback Center

oInvite Friends and Get Rewards

oGames and So on Same as BIGO & Mico

I will ask questions regarding these app so if you have knowledge about these application then Bid properly..

1. Do you have any same kind of app (Bigo) development experience?

2. Do you have solid experience in this kind of App Development?

3. What kind of Backend will you prefer for this Kind of App?

Thanks for review my Post..