Dependency troubles

Vaadin 6 / 7 / 8
1

[INFO]
Scanning for projects…
[INFO]
Downloading from : https://repo.maven.apache.org/maven2/com/vaadin/vaadin-bom/8.0.5/vaadin-bom-8.0.5.pom
[ERROR]
[ERROR]
Some problems were encountered while processing the POMs:
[ERROR]
Non-resolvable import POM: Could not transfer artifact com.vaadin:vaadin-bom:pom:8.0.5 from/to central (https://repo.maven.apache.org/maven2): java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty @ line 36, column 16
[ERROR]
‘dependencies.dependency.version’ for com.vaadin:vaadin-server:jar is missing. @ line 53, column 15
[ERROR]
‘dependencies.dependency.version’ for com.vaadin:vaadin-push:jar is missing. @ line 57, column 15
[ERROR]
‘dependencies.dependency.version’ for com.vaadin:vaadin-client-compiled:jar is missing. @ line 61, column 15
[ERROR]
‘dependencies.dependency.version’ for com.vaadin:vaadin-themes:jar is missing. @ line 65, column 15
@
[ERROR]
The build could not read 1 project → [Help 1]

[ERROR]

[ERROR]
The project my.vaadin.app:app:1.0-SNAPSHOT (/home/oem/eclipse-workspace/tutorial-master/pom.xml) has 5 errors
[ERROR]
Non-resolvable import POM: Could not transfer artifact com.vaadin:vaadin-bom:pom:8.0.5 from/to central (https://repo.maven.apache.org/maven2): java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty @ line 36, column 16 → [Help 2]

[ERROR]
‘dependencies.dependency.version’ for com.vaadin:vaadin-server:jar is missing. @ line 53, column 15
[ERROR]
‘dependencies.dependency.version’ for com.vaadin:vaadin-push:jar is missing. @ line 57, column 15
[ERROR]
‘dependencies.dependency.version’ for com.vaadin:vaadin-client-compiled:jar is missing. @ line 61, column 15
[ERROR]
‘dependencies.dependency.version’ for com.vaadin:vaadin-themes:jar is missing. @ line 65, column 15
[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

2

Have you checked if you can see the artifacts in maven repo with your browser? The most common reason for errors like above is that firewall or local proxy is preventing you to access the maven central.