Maven stuck downloading maven-default-http-blocker-CodePudding

I'm building a provided Google Dataflow template here. So I'm running the command:

mvn compile exec:java \
-Dexec.mainClass=com.google.cloud.teleport.templates.<template-class> \
-Dexec.cleanupDaemonThreads=false \
-Dexec.args=" \
--project=<project-id> \
--stagingLocation=gs://<bucket-name>/staging \
--tempLocation=gs://<bucket-name>/temp \
--templateLocation=gs://<bucket-name>/templates/<template-name>.json \
--runner=DataflowRunner"

However, it seems the compile is stuck downloading maven-default-http-blocker. The log I have after adding -X is:

[DEBUG] Could not find metadata io.grpc:grpc-api/maven-metadata.xml in local (/Users/bli00/.m2/repository)
[DEBUG] Skipped remote request for io.grpc:grpc-api/maven-metadata.xml, locally cached metadata up-to-date
[DEBUG] Could not find metadata io.grpc:grpc-netty-shaded/maven-metadata.xml in local (/Users/bli00/.m2/repository)
[DEBUG] Skipped remote request for io.grpc:grpc-netty-shaded/maven-metadata.xml, locally cached metadata up-to-date
[DEBUG] Using mirror maven-default-http-blocker (http://0.0.0.0/) for confluent (http://packages.confluent.io/maven/).
[DEBUG] Using mirror maven-default-http-blocker (http://0.0.0.0/) for ow2-snapshot (http://repository.ow2.org/nexus/content/repositories/snapshots).
[DEBUG] Using mirror maven-default-http-blocker (http://0.0.0.0/) for repository.jboss.org (http://repository.jboss.org/nexus/content/groups/public/).
[DEBUG] Using mirror maven-default-http-blocker (http://0.0.0.0/) for m2.dev.java.net (http://download.java.net/maven/2).
[DEBUG] Using mirror maven-default-http-blocker (http://0.0.0.0/) for m2.java.net (http://download.java.net/maven/2).
[DEBUG] Using mirror maven-default-http-blocker (http://0.0.0.0/) for glassfish-repository (http://maven.glassfish.org/content/groups/glassfish).
[DEBUG] Using mirror maven-default-http-blocker (http://0.0.0.0/) for maven2-repository.dev.java.net (http://download.java.net/maven/2/).
[DEBUG] Using mirror maven-default-http-blocker (http://0.0.0.0/) for java.net (http://download.java.net/maven/2).
[DEBUG] Using mirror maven-default-http-blocker (http://0.0.0.0/) for m1.java.net (http://download.java.net/maven/1).
[DEBUG] Using mirror maven-default-http-blocker (http://0.0.0.0/) for sonatype-nexus-snapshots (http://oss.sonatype.org/content/repositories/snapshots).
[DEBUG] Could not find metadata net.minidev:json-smart/maven-metadata.xml in local (/Users/bli00/.m2/repository)
[DEBUG] Skipped remote request for net.minidev:json-smart/maven-metadata.xml, locally cached metadata up-to-date
[DEBUG] net.minidev:json-smart/maven-metadata.xml was not found in https://repository.apache.org/content/repositories/snapshots during a previous attempt. This failure was cached in the local repository and resolution is not be reattempted until the update interval of apache.snapshots.https has elapsed or updates are forced
[DEBUG] Using transporter WagonTransporter with priority -1.0 for http://0.0.0.0/
[DEBUG] Using connector BasicRepositoryConnector with priority 0.0 for http://0.0.0.0/
Downloading from maven-default-http-blocker: http://0.0.0.0/net/minidev/json-smart/maven-metadata.xml

Not sure how maven works but I've tried mvn clean and rerunning. And I'm assuming 0.0.0.0 is my local cache? Any idea how to proceed?

CodePudding user response：

Starting from Maven 3.8.1, http repositories are blocked.

You need to either configure them as mirrors in your settings.xml or replace them by https repositories (if those exist).