Still "No digest algorithm is available to verify download of " during assemble-repository

[dhendriks]

Follow-up of #1482.

The issue was reduced, but not completely solved. We still get several such warnings in Tycho 4.0.1:

[2023-08-11T08:49:37.917Z] [INFO] --- tycho-p2-repository:4.0.1:assemble-repository (default-assemble-repository) @ org.eclipse.escet.product ---
[2023-08-11T08:49:37.917Z] [WARNING] Parameter 'qualifier' (user property 'buildQualifier') is read-only, must not be used in configuration
[2023-08-11T08:50:10.010Z] [WARNING] [349e7efd-6b6e-442a-abc7-000cf4144b2c][extension>org.eclipse.tycho:tycho-maven-plugin:4.0.1] No digest algorithm is available to verify download of osgi.bundle,org.apache.commons.commons-text.source,1.10.0.
[2023-08-11T08:50:10.010Z] [WARNING] [349e7efd-6b6e-442a-abc7-000cf4144b2c][extension>org.eclipse.tycho:tycho-maven-plugin:4.0.1] No digest algorithm is available to verify download of binary,org.eclipse.escet.product.headless.feature_root.gtk.linux.x86_64,1.0.0.v20230811-083501-dev.
[2023-08-11T08:50:10.010Z] [WARNING] [349e7efd-6b6e-442a-abc7-000cf4144b2c][extension>org.eclipse.tycho:tycho-maven-plugin:4.0.1] No digest algorithm is available to verify download of osgi.bundle,com.github.com-github-javabdd.com.github.javabdd.source,6.0.0.
[2023-08-11T08:50:10.010Z] [WARNING] [349e7efd-6b6e-442a-abc7-000cf4144b2c][extension>org.eclipse.tycho:tycho-maven-plugin:4.0.1] No digest algorithm is available to verify download of binary,org.eclipse.escet.product.feature_root,1.0.0.v20230811-083501-dev.
[2023-08-11T08:50:10.010Z] [WARNING] [349e7efd-6b6e-442a-abc7-000cf4144b2c][extension>org.eclipse.tycho:tycho-maven-plugin:4.0.1] No digest algorithm is available to verify download of binary,org.eclipse.escet.product.executable.gtk.linux.x86_64,1.0.0.v20230811-083501-dev.
[2023-08-11T08:50:10.010Z] [WARNING] [349e7efd-6b6e-442a-abc7-000cf4144b2c][extension>org.eclipse.tycho:tycho-maven-plugin:4.0.1] No digest algorithm is available to verify download of binary,org.eclipse.escet.product.headless.feature_root.win32.win32.x86_64,1.0.0.v20230811-083501-dev.
[2023-08-11T08:50:10.010Z] [WARNING] [349e7efd-6b6e-442a-abc7-000cf4144b2c][extension>org.eclipse.tycho:tycho-maven-plugin:4.0.1] No digest algorithm is available to verify download of binary,org.eclipse.escet.product.executable.win32.win32.x86_64,1.0.0.v20230811-083501-dev.
[2023-08-11T08:50:10.010Z] [WARNING] [349e7efd-6b6e-442a-abc7-000cf4144b2c][extension>org.eclipse.tycho:tycho-maven-plugin:4.0.1] No digest algorithm is available to verify download of binary,org.eclipse.escet.product.executable.cocoa.macosx.x86_64,1.0.0.v20230811-083501-dev.
[2023-08-11T08:50:10.010Z] [WARNING] [349e7efd-6b6e-442a-abc7-000cf4144b2c][extension>org.eclipse.tycho:tycho-maven-plugin:4.0.1] No digest algorithm is available to verify download of binary,org.eclipse.escet.product.executable.cocoa.macosx.aarch64,1.0.0.v20230811-083501-dev.

Note that these concern:

• Root features.
• Direct-from-Maven dependencies.
• Executables for the product.

I'll try to create a reproducer, as suggested.

[dhendriks]

I've created a reproducer at #2711.

[laeubi]

I was now able to fix it for the root files what was a bit tricky but products seem to generate there metadata differently...