Cannot open Eclipse Marketplace Cannot install remote marketplace locations: - eclipse

Cannot open Eclipse Marketplace
Cannot install remote marketplace locations: Cannot complete request to https://marketplace.eclipse.org/catalogs/api/p: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
eclipse:
Version: 2022-12 (4.26.0)
Build id: 20221201-1913
JDK 11.0.9
Solution, and from where we can get this certification and where to install.

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Connecting SonarLint into sonaqube server

I have eclipse NEON.3 with SonarLint 3.0.0 and while try to connect sonarLint with SonarQube 6.3.1.21392.
To connect the SonarQube with sonar lint, we try to install the required softwares by using the link http://downloads.sonarsource.com/eclipse/eclipse/ in eclipse(Help -> Install New Softwares)
Cannot complete the install because one or more required items could not be found.
Software being installed: SonarQube Java Configuration Helper 3.5.0.20150804-1512-RELEASE (org.sonar.ide.eclipse.jdt.feature.feature.group 3.5.0.20150804-1512-RELEASE) Missing requirement:
SonarQube Integration for Eclipse JDT 3.5.0.20150804-1512-RELEASE (org.sonar.ide.eclipse.jdt 3.5.0.20150804-1512-RELEASE) requires 'bundle org.eclipse.jdt.ui 0.0.0' but it could not be found
Cannot satisfy dependency: From: SonarQube Java Configuration Helper 3.5.0.20150804-1512-RELEASE (org.sonar.ide.eclipse.jdt.feature.feature.group 3.5.0.20150804-1512-RELEASE) To: org.sonar.ide.eclipse.jdt [3.5.0.20150804-1512-RELEASE]
Kindly advice us how to fix this issue

Eclipse Marketplace error - Unexpected exception: org/apache/http/client/fluent/Executor

I'm on Fedora 24 and installed Eclipse Neon via the software shop. The Eclipse version is 4.6. build id: Z20160714-1910.
When trying to start the Marketplace, I get the following error after the Marketplace window pops up:
Unexpected exception: org/apache/http/client/fluent/Executor
org/apache/http/client/fluent/Executor
org/apache/http/client/fluent/Executor
org/apache/http/client/fluent/Executor
The only other thing installed is PyDev.
Any idea what might cause this?
Try installing the "Fedora Eclipse" group via dnf:
sudo dnf group install 'Fedora Eclipse'
I was getting the same error as you, and using the above fixed it for me. It must be that the rpm for Eclipse by itself (which is what the Software app would install) is missing some Fedora-related dependencies.

TestNG plugin install error

I am trying to install TestNG plugin in eclipse it is not getting installed and iam getting the below error message
Communication with repository at htt://beust.com/eclipse/ failed.
Org.eclipse.equinoxp2.core.ProvisionException

Maven for eclipse plugin not getting installed

When I'm trying to download the plugin from eclipse marketplace, I get the following error:
Cannot complete the install because one or more required items could not be found.
Software being installed: Maven Development Tools 0.2.0.201401071755 (com.ifedorenko.m2e.mavendev.feature.feature.group 0.2.0.201401071755)
Missing requirement: Maven Development Tools 0.2.0.201401071755 (com.ifedorenko.m2e.mavendev 0.2.0.201401071755) requires 'bundle org.eclipse.m2e.launching [1.5.0,2.0.0)' but it could not be found
Cannot satisfy dependency:
From: Maven Development Tools 0.2.0.201401071755 (com.ifedorenko.m2e.mavendev.feature.feature.group 0.2.0.201401071755)
To: com.ifedorenko.m2e.mavendev [0.2.0.201401071755]
How can I fix this issue?
I have the same problem on my environment.
In the error message, you can see that the plugin you want to install need the bundle org.eclipse.m2e.launching in following versions (1.6.0 to 2.0.0).
Actually, only version 1.5 of m2e is released. You can install the milestone of version 1.6 by following these instructions.
Help > Install new software...
Paste the following link into the
field Work with :
http://download.eclipse.org/technology/m2e/milestones/1.6/
Press enter Select all plugins you need - Click Next and follow the wizard
After this installation, retry the installation of "Maven Development
Tools"

Error installing LDAP Browser plugin in eclipse

I have installed eclipse jee juno in my linux 12.10 environment and I tried to install the LDAP Browser plugin using install new Software option. But it gives me the following error. How can I solve this?
An error occurred while installing the items
`session context was:(profile=epp.package.jee,` phase=org.eclipse.equinox.internal.p2.engine.phases.Install, operand=null --> [R]org.apache.commons.io 2.4.0, action=).
Failed to prepare partial IU: [R]org.apache.commons.io 2.4.0.
To install you need to add this in Eclipse:
http://directory.apache.org/studio/update/2.x
After that select:
The Apache Directory Studio Browser