Miguel Ortega created MBUILDCACHE-45:
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Summary: Compiled classes are not copied/restored to target,
causing higher phase builds to fail
Key: MBUILDCACHE-45
URL: https://issues.apache.org/jira/browse/MBUILDCACHE-45
Project: Maven Build Cache Extension
Issue Type: Bug
Environment: windows
Reporter: Miguel Ortega
Attachments: maven-cache.zip
+*Step to reproduce*+
1. Execute a first command
{code:java}
mvn test{code}
Result are cached (contrary to documentation that states that "cache will
kick-in automatically on every lifecycle build of phase {{package}} or
higher.") This could also be a feature since tests can be skipped if nothing
changes.
But if I run next
{code:java}
mvn clean verify
#OR
mvn clean install{code}
Then the build fails
{code:java}
[ERROR] Failed to execute goal
org.springframework.boot:spring-boot-maven-plugin:3.0.2:repackage (repackage)
on project demo: Execution repackage of goal
org.springframework.boot:spring-boot-maven-plugin:3.0.2:repackage failed:
Unable to find main class -> [Help 1]
[ERROR]
{code}
The root cause seems to be that after "clean", the maven target directory is
cleaned an even if the cache is detected, classes are not copied to the target
folder anymore
{code:java}
[INFO] Attempting to restore project com.example:demo from build cache
[INFO] Remote cache is incomplete or missing, trying local build for
com.example:demo
[INFO] Local build found by checksum 596f60b3f5056d7d
[INFO] Found cached build, restoring com.example:demo from cache by checksum
596f60b3f5056d7d
[INFO] Project com.example:demo restored partially. Highest cached goal: test,
requested: install
[INFO] Skipping plugin execution (cached): resources:resources
[INFO] Skipping plugin execution (cached): compiler:compile
[INFO] Skipping plugin execution (cached): resources:testResources
[INFO] Skipping plugin execution (cached): compiler:testCompile
[INFO] Skipping plugin execution (cached): surefire:test {code}
Environment
{code:java}
Apache Maven 3.9.0 (9b58d2bad23a66be161c4664ef21ce219c2c8584)
Maven home: <REDACTED>
Java version: 17.0.1, vendor: Eclipse Adoptium, runtime: <REDACTED>
Default locale: fr_FR, platform encoding: Cp1252
OS name: "windows 10", version: "10.0", arch: "amd64", family: "windows"
{code}
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