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how to downgrade spring boot project?

I have a spring boot project build on 2.1.0.RELEASE.
I want to run this project on Weblogic server which is running on a java1.7 version.
I tried to change the java version in my pom.xml to
<java.version>1.7</java.version>
but it didn't work.
when I create an executable jar from my project it still showing build_jdk as 1.8 so I decided to switch to springboot's older version 1.4.0 expecting it to run on Java 7. However, when I build my project again I don't see any change in the manifest file of the generated jar. It is still showing springboot version as 2.1.0.RELEASE.
can anyone suggest regarding one of the 2 things?
Build project with springboot 2.1.0 and Java version 7
Downgrade springboot to 1.4.0 and build with Java 7
here is my pom.xml
<?xml version="1.0"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd"
xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>parent-XYZ-package</groupId>
<artifactId>parent-XYZ-project</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>myProject</artifactId>
<name>myProject</name>
<url>http://maven.apache.org</url>
<properties>
<java.version>1.7</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
<configuration>
<classifier>exec</classifier>
</configuration>
</execution>
</executions>
<configuration>
<archive>
<mainClass>MyMainClass</mainClass>
</archive>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</dependency>
**<dependency>
<groupId>DependentUserProjec</groupId>
<artifactId>DependentUserProject</artifactId>
<version>${project.version}</version>
</dependency>**
<dependency>
<groupId>weblogic</groupId>
<artifactId>wlfullclient</artifactId>
<version>12.1.2.0.0</version>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.1.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.0.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
</project>
one more thing to note that I already have a parent pom in my pom.xml
Hence I am specifying my springboot parent dependency through <DependencyManagement> tag.
Update
Which ever springboot version I specify in pom.xml its always building my project with Springboot 2.1.1.RELEASE
Below is the snapshot from my manifest file generated
Manifest-Version: 1.0
Archiver-Version: Plexus Archiver
Built-By: SID
Start-Class: myMainClass **This line is I have edited just to post on this site**
Spring-Boot-Classes: BOOT-INF/classes/
Spring-Boot-Lib: BOOT-INF/lib/
Spring-Boot-Version: 2.1.1.RELEASE
Created-By: Apache Maven 3.5.3
Build-Jdk: 1.8.0_181
Main-Class: org.springframework.boot.loader.JarLauncher

step 1: change the java version in pom file.
<properties>
<java.version>1.8</java.version>
</properties>
step 2: Go to maven and update the project.
Go to maven and update the project
More Details on this video

Spring-mvc setup issue

I am trying to do the basic Maven-Spring MVC setup in STS, but somehow I am not able to remove the red underline mark. I have attached a screenshot and also POM.xml file as reference. I don't think I have missed anything because I have included spring-wewbmvc, spring-context and log4j as dependency and that should work.
First I created dynamic web project into STS and then converted into Maven Project.
Please find below screenshot of my directory and AppInitializer class.I just want to get compile and produce out output HelloWorld in the console. That's it!
POM.XML
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.gami.mvc</groupId>
<artifactId>spring-mvc-foundation</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.0.0</version>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>5.0.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.0.7.RELEASE</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- https://mvnrepository.com/artifact/io.takari.m2e.workspace/org.eclipse.m2e.workspace.cli -->
<dependency>
<groupId>io.takari.m2e.workspace</groupId>
<artifactId>org.eclipse.m2e.workspace.cli</artifactId>
<version>0.4.0</version>
</dependency>
</dependencies>
</project>

Oh okay, sorry I got it..
added 2 more dependency into POM.xml
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
and it worked.. surprisingly, I don't knw why .. I thought in spring-context and spring-webmvc would be good enough and it should cover servlet dependency too

Why can't I import ApplicationContext in Spring-5.0.0.RELEASE

I was trying to follow this tutorial on PluralSight to learn Spring. The tutorial is based on spring 4.3.2 while I wanted to learn it on 5.0.0. I imported the spring dependency using mvn:
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.0.0.RELEASE</version>
</dependency>
</dependencies>
All the dependencies were imported fine. I created my applicationContext.xml and configured the beans. Now I am having issue importing ApplicationContext.
ApplicationContext appContext = new ClassPathXmlApplicationContext("applicationContext.xml");
The above line of code says couldn't resolve ApplicationContext and ClassPathXmlApplicationContext.
I tried to find out if these classes have been changed in favour of any other class but I didn't found any such info on Spring website.
Am I missing on something or Is there any change in the way of using Spring after 5.0.0
My pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.saurabh</groupId>
<artifactId>spring</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>Spring</name>
<description>My first attempt at learning spring from Pluralsight</description>
<!-- the stuff above this was generated automatically while I wrote all that is below -->
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.0.0.RELEASE</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>

Please get all your dependencies from here:
Spring Maven Dependency
Looks like you are using correct dependency:
<!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.0.0.RELEASE</version>
</dependency>
Try to do mvn clean install

STS spring bean configuration file doesn't have spring xsd namespace

I've created a maven project in STS based on a video training tutorial and I've gone through all the steps exactly .
According to the tutorial , after adding a spring bean configuration file , I expect in the namespace tab , be able to choose some namespace like mvc and context , But I don't know why there is not . Just Bean , C , P and Util namespaces.
I've done some googling and others mentioned maybe it's because you don't have spring jars in your project , But as you can see It's a maven project and it's downloaded correctly .

You need import spring library. Each library that compose Spring add a new xsd schema.
If you want have all the possible schemas add the next to your POM file:
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-framework-bom</artifactId>
<version>${org.springframework-version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
The before xml code not import all Spring libraries into your project. You need add one by one the spring libraries that you need. After that you will see all the schemas you can use with Spring.
This is a POM example for you:
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.webapp</groupId>
<artifactId>SL14-04</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<java.version>1.8</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<org.springframework-version>4.3.10.RELEASE</org.springframework-version>
<org.aspectj-version>1.8.10</org.aspectj-version>
<org.slf4j-version>1.7.25</org.slf4j-version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-framework-bom</artifactId>
<version>${org.springframework-version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<exclusions>
<!-- Exclude Commons Logging in favor of SLF4j -->
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<encoding>${project.build.sourceEncoding}</encoding>
<compilerArgument>-Xlint:all</compilerArgument>
<showWarnings>true</showWarnings>
<showDeprecation>true</showDeprecation>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.1.0</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
</plugins>
</build>
</project>

Try closing the project and opening it again in STS. Right click on the project and select Maven -> update project. This solved the issue for me.

In pom.xml you need to add spring-bean, spring context, spring context support dependencies as compatible to your spring version.

Changing Dynamic Web Module version in Eclipse Maven Project

I'm trying to set up Dynamic Web Module 3.0 in order to support Java 6 development. I'm getting this error in my Problems tab of eclipse whenever I do Maven > Update Project.
Dynamic Web Module 3.1 requires Java 1.7 or newer.
It appears as though nothing is going wrong, but I must be missing something because I consistently receive this error.
Below is the contents of my .settings/org.eclipse.wst.common.project.facet.core.xml
<?xml version="1.0" encoding="UTF-8"?>
<faceted-project>
<fixed facet="jst.java"/>
<fixed facet="jst.web"/>
<installed facet="jst.java" version="1.6"/>
<installed facet="jst.web" version="3.0"/>
</faceted-project>
In eclipse, my Java Compiler is set to 1.6 properly. In the Project Facets tab, Dynamic Web Module is specified as version 3.0 correctly, and Java also appears as 1.6 under Project Facets.
In my pom.xml file, I have also set the Java version accordingly:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
As a side note, I should also mention that I am doing a pure-Java build with a WebApplicationInitializer and have no web.xml file.
Any help is greatly appreciated as I attempt to squash this seemingly irrelevant error message.
EDIT: added pom.xml contents
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>net.XXXXX</groupId>
<artifactId>XXXXX</artifactId>
<version>1.0-SNAPSHOT</version>
<name>XXXXX</name>
<packaging>war</packaging>
<url>http://maven.apache.org</url>
<build>
<finalName>XXXXX</finalName>
<plugins>
<!-- Source level should be 1.6 (not Maven default) for Java EE 6 projects -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<!-- When using xml-less approach, need to disable Maven's warning about
missing web.xml -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<!-- JUnit testing -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!-- Spring Core -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.0.2.RELEASE</version>
</dependency>
<!-- Spring MVC -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.0.2.RELEASE</version>
</dependency>
<!-- Spring Context without commons-logging -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.0.2.RELEASE</version>
<exclusions>
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- Spring Security core -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-core</artifactId>
<version>3.2.1.RELEASE</version>
</dependency>
<!-- Spring Security config -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
<version>3.2.1.RELEASE</version>
</dependency>
<!-- Spring Security web -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
<version>3.2.1.RELEASE</version>
</dependency>
<!-- jcl-over-slf4j -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>1.7.6</version>
</dependency>
<!-- slf4j-api -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.6</version>
</dependency>
<!-- slf4j-log4j12 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.6</version>
</dependency>
<!-- log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- Need servlet API for compiling the classes. Not needed in runtime -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!-- Required for xml-less configuration of Spring via #Configuration annotations -->
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib-nodep</artifactId>
<version>3.1</version>
</dependency>
<!-- Required for getting Spring working with Hibernate -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>4.0.2.RELEASE</version>
</dependency>
<!-- Hibernate -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.3.4.Final</version>
</dependency>
<!-- For using JPA instead of "pure Hibernate" -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.3.4.Final</version>
</dependency>
<!-- DB connection pooling for production applications -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>20030825.184428</version>
</dependency>
<!-- Concrete JDBC driver for MySQL DB -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.29</version>
</dependency>
<!-- Add Taglib support -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
</dependencies>
</project>

In an our project, we add to change the web.xml root element's declaration, changing from:
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
to:
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5" >
Probably Eclipse were expecting it as satisfying a different Servlet version spec. In our case too, we had neither compile nor runtime problems.
EDIT: In your case, where you were not using a web.xml file, there was the following pom's dependency which probably was confusing Eclipse's maven plugin:
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
Change it to "3.0.1". (It turns out that WebApplicationInitializer requires "Servlet 3.0+ environments" and not 3.1+)

you can add this to the pom.xml:
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
Works in Spring STS 3.6.3 :)
edit:
source: http://crunchify.com/how-to-solve-dynamic-web-module-3-1-requires-java-1-7-or-newer-in-eclipse/

Try changing your JRE/JDK version to 1.7. The web project module doesn't support 1.6.