I was created and try to build project using mvn clean install but It is not working. not this project I try to build my all project to build but not working in my ubuntu laptop

[INFO] Scanning for projects... Downloading from central: https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-starter-parent/2.6.11/spring-boot-starter-parent-2.6.11.pom [ERROR] [ERROR] Some problems were encountered while processing the POMs: [FATAL] Non-resolvable parent POM for com.example:demo:0.0.1-SNAPSHOT: Could not transfer artifact org.springframework.boot:spring-boot-starter-parent:pom:2.6.11 from/to central (https://repo.maven.apache.org/maven2): transfer failed for https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-starter-parent/2.6.11/spring-boot-starter-parent-2.6.11.pom and 'parent.relativePath' points at no local POM @ line 5, column 10 @ [ERROR] The build could not read 1 project -> [Help 1] [ERROR]
[ERROR] The project com.example:demo:0.0.1-SNAPSHOT (/home/sajith/Downloads/demo/pom.xml) has 1 error [ERROR] Non-resolvable parent POM for com.example:demo:0.0.1-SNAPSHOT: Could not transfer artifact org.springframework.boot:spring-boot-starter-parent:pom:2.6.11 from/to central (https://repo.maven.apache.org/maven2): transfer failed for https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-starter-parent/2.6.11/spring-boot-starter-parent-2.6.11.pom and 'parent.relativePath' points at no local POM @ line 5, column 10: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty -> [Help 2] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException [ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/UnresolvableModelException

my pom.xml:

 

    4.0.0
    
        org.springframework.boot
        spring-boot-starter-parent
        2.6.11
         
    
    com.example
    demo
    0.0.1-SNAPSHOT
    demo
    Demo project for Spring Boot
    
        1.8
    
    
        
            org.springframework.boot
            spring-boot-starter
        

        
            org.springframework.boot
            spring-boot-starter-test
            test
        
    

    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
            
        
    

my java and mvn version:

openjdk version "1.8.0_42" Apache Maven 3.8.6