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Michael Osipov commented on MRESOLVER-335: ------------------------------------------ [~sjaranowski], this needs to be broadened because as depicted in MNG-7758 these two are flawed for me: {code:java} private static Throwable getCause(List<? extends ArtifactResult> results) { for (ArtifactResult result : results) { if (!result.isResolved()) { Throwable notFound = null, offline = null; for (Throwable t : result.getExceptions()) { if (t instanceof ArtifactNotFoundException) { if (notFound == null || notFound instanceof ArtifactFilteredOutException) { notFound = t; } if (offline == null && t.getCause() instanceof RepositoryOfflineException) { offline = t; } } else { return t; } } if (offline != null) { return offline; } if (notFound != null) { return notFound; } } } return null; } {code} and {code:java} public boolean isMissing() { for (Exception e : getExceptions()) { if (!(e instanceof ArtifactNotFoundException)) { return false; } } return !isResolved(); } {noformat} {code} > Better resolver errors for Artifact Not Found > --------------------------------------------- > > Key: MRESOLVER-335 > URL: https://issues.apache.org/jira/browse/MRESOLVER-335 > Project: Maven Resolver > Issue Type: Improvement > Components: Resolver > Reporter: Slawomir Jaranowski > Priority: Major > Fix For: 1.10.0 > > > When we have many remote repositories only first > {{ArtifactNotFoundException}} is returned, all checks for other repositories > are hidden. > When we have errors for many artifacts in one request - list of problematic > artifacts is present in message and only first exception for one artifact. > Next case is with remote repository filtering, checks for remote repository > according to filtering also produce {{ArtifactNotFoundException}}, this is > done at the beginning so exception is first on list. > In logs and exception we have: > {code} > Downloading from my-mirror: > https://artifactory.../artifactory/remote-repos/org/apache/commons/commons-lang3/4.4.4/commons-lang3-4.4.4.pom > [WARNING] The POM for org.apache.commons:commons-lang3:jar:4.4.4 is missing, > no dependency information available > Downloading from my-mirror: > https://artifactory.../artifactory/remote-repos/org/apache/commons/commons-lang3/4.4.4/commons-lang3-4.4.4.jar > [ERROR] Failed to execute goal on project maven-3.9: Could not resolve > dependencies for project org.test:maven-3.9:jar:1.0.0-SNAPSHOT: Prefix org > NOT allowed from mayrepo (https://artifactory.../artifactory/myrepo/, > default, releases+snapshots) > {code} > As we see artefact was not found in {{my-mirror}}, but in error report we > have information about not allowed prefixes - it can be confusing -- This message was sent by Atlassian Jira (v8.20.10#820010)