Summary: Problem: Android build fails due to use of JCenter

[stephan57160]

Since last Saturday, Android build fails with: FAILURE: Build failed with an exception.

• Where: Build file '/builds/CrisalidBox/zproject-android-testing/zyre/bindings/jni/zyre-jni/build.gradle' line: 25
• What went wrong: A problem occurred evaluating project ':zyre-jni'.

  Could not resolve all files for configuration ':zyre-jni:runtimeClasspath'. Could not resolve org.zeromq.czmq:czmq-jni:latest.integration. Required by: project :zyre-jni Failed to list versions for org.zeromq.czmq:czmq-jni. Unable to load Maven meta-data from https://jcenter.bintray.com/org/zeromq/czmq/czmq-jni/maven-metadata.xml. Could not GET 'https://jcenter.bintray.com/org/zeromq/czmq/czmq-jni/maven-metadata.xml'. Read timed out

https://jcenter.bintray.com/ does not respond at all any more:

prompt> wget https://jcenter.bintray.com/
--2022-10-31 06:54:04--  https://jcenter.bintray.com/
Resolving jcenter.bintray.com (jcenter.bintray.com)... 34.95.74.180
Connecting to jcenter.bintray.com (jcenter.bintray.com)|34.95.74.180|:443... connected.
HTTP request sent, awaiting response... 504 Gateway Time-out
Retrying.
prompt>

or

prompt> get https://jcenter.bintray.com/index.html
--2022-10-31 06:57:15--  https://jcenter.bintray.com/index.html
Resolving jcenter.bintray.com (jcenter.bintray.com)... 34.95.74.180
Connecting to jcenter.bintray.com (jcenter.bintray.com)|34.95.74.180|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2022-10-31 06:57:16 ERROR 404: Not Found.
prompt>

From stackoverflow:

https://stackoverflow.com/questions/66400264/jcenter-is-at-end-of-life-android-lint-warning-what-is-the-replacement

BINTRAY is stopped by JFROG, and is no more responding.

Solution: Remove jcenter from artifact search repositories.

As explained by stackoverflow, jcenter() should be replaced by mavenCentral(). This mavenCentral() is already available in ZPROJECT generated code.

Questions:

• What to do with JFROG plugins ?
• Are they still useful ?
• What to do with the extising 'publish' mechanism ?
• Is it still working ?
• README update ?