yeroc opened a new issue, #492:
URL: https://github.com/apache/maven-build-cache-extension/issues/492
### Affected version
1.2.3
### Bug description
In a multi-module reactor where a downstream module depends on an upstream
module, running `mvn clean compile` twice fails on the second invocation. The
first run populates the cache. The second run gets a cache hit on the upstream,
then the downstream's compile fails:
```
[ERROR] Failed to execute goal on project downstream: Could not resolve
dependencies for project example:downstream:jar:1.0-SNAPSHOT
[ERROR] dependency: example:upstream:jar:1.0-SNAPSHOT (compile)
[ERROR] Could not find artifact example:upstream:jar:1.0-SNAPSHOT
```
The above can also be reproduced in other ways:
* `mvn clean test-compile` twice
* `mvn clean test` twice
What works:
* `mvn clean package` twice
* `mvn clean verify` twice
* `mvn clean` followed by `mvn compile` as separate invocations
So the combination of `clean` plus a goal that stops before `package`, in a
single invocation, seems to be what triggers it.
## Minimal reproducer
```
parent/
pom.xml (packaging=pom, modules: upstream, downstream)
.mvn/
extensions.xml (declares maven-build-cache-extension 1.2.3)
maven-build-cache-config.xml (defaults)
upstream/
pom.xml
src/main/java/example/Upstream.java
downstream/
pom.xml (depends on upstream)
src/main/java/example/Downstream.java
```
Steps:
```
mvn clean compile # BUILD SUCCESS
mvn clean compile # BUILD FAILURE
```
Happy to attach a zip or post a gist with the full project.
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