Peer Not Authenticated While Importing Gradle Project in Eclipse

Peer not authenticated while importing Gradle project in eclipse

NOTE: Please ensure the server is trustworthy before you follow these steps.

If you get any other error like this:

 Could not GET 'https://some_server.com/some/path/some.pom'.
     > peer not authenticated

Then you need to import a certificate :

• open the 'https://some_server.com/some/path/some.pom' in your favorite browser
• export the cert using the Steps to export cert from a web site
• copy the cer into JDK_HOME/jre/lib/security folder
• open a shell and go to JDK_HOME/jre/lib/security folder
• then import the cer into java using the

keytool -import -alias <the short name of the server> -file <cert_file_name_you_exported.cer> -keystore cacerts -storepass changeit

It will prompt you to import the certificate, type yes and press enter.

Then restart your eclipse and try building the project.

Gradle Could not HEAD https://..pom peer not authenticated

Change your repository syntax to one of the following

repositories {
    jcenter {
        url "http://jcenter.bintray.com/"
    }
}

repositories {
    maven  {
        url "http://repo1.maven.org/maven2"
    }
}

Current (2.1) gradle docs claims that

Warning: Be aware that the central Maven 2 repository is HTTP only 
and HTTPS is not supported. If you need a public HTTPS enabled 
central repository, you can use the JCenter public repository 
(see Section 51.6.3, “Maven JCenter repository”).

I think maven central went for https. If I use following syntax.

repositories {
    mavenCentral()
}

I get following error.

D:\tools\gradle-2.1-bin\bin\gradle.bat -q

FAILURE: Build failed with an exception.

• What went wrong: A problem occurred configuring root project 'XXXX'.

  Could not resolve all dependencies for configuration ':classpath'.
  Could not resolve de.undercouch:gradle-download-task:1.0.
  Required by:
  :XXXX:unspecified
  Could not HEAD 'https://repo1.maven.org/maven2/de/undercouch/gradle-download-task/1.0/gradle-download-task-1.0.pom'.
  peer not authenticated

• Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

java 6 - mongodb maven dependency error: peer not authenticated

The connection to https://repo1.maven.org using Java 6 fails because of the Java version you have installed does not support TLS1.2 and repo1.maven.org only supports TLS 1.2 connections.

If you really want to continue using Java 6 you need to install Java SE Development Kit 6, Update 111 or newer.

IMHO you should delete Java 6 (it is outdated and insecure) and install a current Oracle Java version. I assume your version is the one provided by Apple - AFAIK Apple has stopped support for their Java version. Therefore you should no longer use it.

Peer Not Authenticated in maven when trying to run a job in JENKINS

When using SSL to connect to maven repositories you'll need to make sure that the certificates for the repository are trusted by the JVM running maven. Refer to the Guide to Remote repository access through authenticated HTTPS.

Also, as mentioned by rec in an answer to maven release -> peer not authenticated, with newer versions of maven you can disable the certificate validation of the maven http wagon temporarily to confirm if the certificate is indeed the source of the problem:

-Dmaven.wagon.http.ssl.insecure=true -Dmaven.wagon.http.ssl.allowall=true

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