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Getting Security error while setting up the maven project - java.security.InvalidAlgorithmParameterException

I'm new to maven and setting up maven for the first time. I'm getting following error with Java and hitting mvn install command.
Plugin org.apache.maven.plugins:maven-clean-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for
org.apache.maven.plugins:maven-clean-plugin:jar:2.5: Could not transfer artifact org.apache.maven.plugins:maven-clean-plugin:pom:2.5 from/to central (ht
tps://repo.maven.apache.org/maven2): transfer failed for https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-clean-plugin/2.5/maven-clea
n-plugin-2.5.pom: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non
-empty -

This would be better than a straight answer here ...
make a settings.xml in a hidden folder in your home for Maven

Could not find artifact spring-boot-thin-layout:jar:1.0.27.RELEASE

More info of the error:
Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.4.3:repackage (repackage) on project HelloWorldProject: Execution repackage of goal org.springframework.boot:spring-boot-maven-plugin:2.4.3:repackage failed: Plugin org.springframework.boot:spring-boot-maven-plugin:2.4.3
with org.springframework.boot.experimental

Oh thanks, I see in the mvn repo that version 1.0.26.RELEASE is the highest version existing for spring-boot-thin-layout.

How to resolve central.maven.org: Unknown host central.maven.org in Maven Project?

Please find the below logs :
[ERROR] Failed to execute goal on project hospital: Could not resolve dependencies for project
com.project_name.test.web:hospital:war:0.0.1-SNAPSHOT: Failed to collect dependencies at
com.example.test:example-child:jar:1.1.12-SNAPSHOT: Failed to read artifact descriptor for
com.example.test:example-child:jar:1.1.12-SNAPSHOT: Could not transfer artifact
com.example.test:example-parent:pom:1.1.12-SNAPSHOT from/to maven-central
(http://central.maven.org/maven2/): central.maven.org: Unknown host central.maven.org -> [Help 1]
Thanks in advance!

This failes likely due to an artifact downloaded earlier (in my case .m2/repository/org/geotools/geotools/19.1/geotools-19.1.pom) containing this as a specific repo, maybe even retrieved from a thirdparty repo.
Check your local artifacts for references to the repository, e.g. by this brute force approach:
grep -nr "central.maven.org" ~/.m2/repository/
Replacing/removing the dependency solved the issue.

Could not transfer artifact despite I see this jar inside my local repo

I try to build my applivation and get followinf error message:
[ERROR] Failed to execute goal on project XXX: Could not resolve dependencies for project XXX:1.0.0-SNAPSHOT: Failed to collect dependencies at com.day.cq:cq-i18n:jar:5.4.4: Failed to read artifact descriptor for com.day.cq:cq-i18n:jar:5.4.4: Could not transfer artifact com.day.cq:cq-i18n:pom:5.4.4 from/to repo1 (http://HOST.COM/content/groups/public/): Connection to http://HOST.COM refused: Connection refused: connect
But on filesystem I see that this jar exists inside following folder:
.m2\repository\com\day\cq\cq-i18n\5.4.4
How to fix this problem?
update
Tried to execute with -o option:
Failed to execute goal on project XXXs: Could not resolve dependencies for project XXX:bundle:1.0.0-SNAPSHOT: Cannot access adobe (http://repo.adobe.com/nexus/content/groups/public/) in offline mode and the artifact com.day.cq:cq-i18n:jar:5.4.4 has not been downloaded from it before.

Maven build of Saiku open source project fails second time after no changes

I was doing a build yesterday for the second time of an open source project (Saiku) – I have made no changes to the POM.XML or any of the libraries/jars. The build succeeded a few days ago but now fails. The following pastebin shows the output. The errors are of two types – failure to delete /clean project, and cannot find artifact. Does anyone have any troubleshooting tips?
http://pastebin.com/g2bpAtMS
error type 1
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-clean-plugin:2.4.1:clean (default-clean) on project saiku-core: Failed to clean project: Failed to delete /usr/local/.m2/repository/saiku/saiku-core/target/javadoc-bundle-options/javadoc-options-javadoc-resources.xml
error Type 2
- [ERROR] The build could not read 1 project -> [Help 1]
- [ERROR] The project org.saiku:saiku-webapp:2.2-SNAPSHOT (/usr/local/.m2/repository/saiku/saiku-webapp/pom.xml) has 1 error
- [ERROR] Non-resolvable parent POM: Could not find artifact org.saiku:saiku-core:pom:2.2-SNAPSHOT and 'parent.relativePath' points at wrong local POM # line 3, column 10 -> [Help 2]

Are you building within your local repo? That would be bad.
I get similar errors because, I think, my virus checker locks a file underneath the target/ directory and clean cannot delete the directory. I delete the directory manually and resume the build.

Failed to delete /usr/local/.m2/repository/saiku/saiku-core/target/javadoc-bundle-options/javadoc-options-javadoc-resources.xml
You have locked this file. Close every program which could have opened it.
Failed to delete /usr/local/.m2/repository/saiku/saiku-ui/target/classes/routers/QueryRouter.js
Idem for this file.
/usr/local/.m2/repository/saiku/saiku-server/target/saiku-server-foodmart-2.2-SNAPSHOT.tar.gz
Idem for this file.
Could not find artifact org.saiku:saiku-core:pom:2.2-SNAPSHOT and 'parent.relativePath' points at wrong local POM
It seems you have changed something : Maven does not find the parent pom referenced by relativePath attribute.
Check these errors, you always many errors.

I've fixed that by setting relativePath in pom.xml of saiku-webapp:
<parent>
<artifactId>saiku-core</artifactId>
<groupId>org.saiku</groupId>
<version>2.6-SNAPSHOT</version>
<relativePath>../saiku-core/pom.xml</relativePath>
</parent>