[SUREFIRE-2233] Unable to create file for report (File name too long)

**[Filipe Roque](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=froque)** opened **[SUREFIRE-2233](https://issues.apache.org/jira/browse/SUREFIRE-2233?redirect=false)** and commented

surefire tries to create report files where the filename includes the package.

On Linux with eCryptfs, it easily fails with _File name too long_ ([What is the maximum allowed filename (and folder) size with eCryptfs?](https://unix.stackexchange.com/questions/32795/what-is-the-maximum-allowed-filename-and-folder-size-with-ecryptfs/32834)), without failing the maven build.

 
* Should this error fail the build ?
* What is the solution for this, besides shorter packages and file names, or non encrypted file systems ?
* Maybe create sub directories under target/surefire-reports matching the packages
* shorten the filename like logback (https://logback.qos.ch/manual/layouts.html#conversionWord)

 

**pom.xml**

```java

4.0.0

org.example
long-filenames
1.0-SNAPSHOT

21
21
UTF-8

org.junit.jupiter
junit-jupiter-api
5.10.1
test

org.apache.maven.plugins
maven-surefire-plugin
3.2.5

```

{**}src/test/java/package1/subpackage2/subpackage3/subpackage4/subpackage5/subpackage6/subpackage7/TestWithAVeryVeryVeryVeryVeryVeryVeryVeryVeryVeryVeryVeryLongFileName.java{**}{*}`*`

 

```java
package package1.subpackage2.subpackage3.subpackage4.subpackage5.subpackage6.subpackage7;

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

public class TestWithAVeryVeryVeryVeryVeryVeryVeryVeryVeryVeryVeryVeryLongFileName {

@Test
public void test() {
Assertions.assertTrue(true);
}
}
```

 

 

 

 

```java
❯ /opt/maven/apache-maven-3.9.5/bin/mvn clean test 
[INFO] Scanning for projects...
[INFO] 
[INFO] ---------------------< org.example:long-filenames >---------------------
[INFO] Building long-filenames 1.0-SNAPSHOT
[INFO]   from pom.xml
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- clean:3.2.0:clean (default-clean) @ long-filenames ---
[INFO] Deleting /home/froque/workspace/testes/long-filenames/target
[INFO] 
[INFO] --- resources:3.3.1:resources (default-resources) @ long-filenames ---
[INFO] Copying 0 resource from src/main/resources to target/classes
[INFO] 
[INFO] --- compiler:3.11.0:compile (default-compile) @ long-filenames ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] --- resources:3.3.1:testResources (default-testResources) @ long-filenames ---
[INFO] skip non existing resourceDirectory /home/froque/workspace/testes/long-filenames/src/test/resources
[INFO] 
[INFO] --- compiler:3.11.0:testCompile (default-testCompile) @ long-filenames ---
[INFO] Changes detected - recompiling the module! :source
[INFO] Compiling 1 source file with javac [debug target 21] to target/test-classes
[INFO] 
[INFO] --- surefire:3.2.5:test (default-test) @ long-filenames ---
[INFO] Using auto detected provider org.apache.maven.surefire.junitplatform.JUnitPlatformProvider
[INFO] 
[INFO] -------------------------------------------------------
[INFO]  T E S T S
[INFO] -------------------------------------------------------
[INFO] Running package1.subpackage2.subpackage3.subpackage4.subpackage5.subpackage6.subpackage7.TestWithAVeryVeryVeryVeryVeryVeryVeryVeryVeryVeryVeryVeryLongFileName
[WARNING] ForkStarter IOException: Unable to create file for report: /home/froque/workspace/testes/long-filenames/target/surefire-reports/package1.subpackage2.subpackage3.subpackage4.subpackage5.subpackage6.subpackage7.TestWithAVeryVeryVeryVeryVeryVeryVeryVeryVeryVeryVeryVeryLongFileName.txt (File name too long). See the dump file /home/froque/workspace/testes/long-filenames/target/surefire-reports/2024-01-15T22-47-50_794-jvmRun1.dumpstream
[INFO] 
[INFO] Results:
[INFO] 
[INFO] Tests run: 0, Failures: 0, Errors: 0, Skipped: 0
[INFO] 
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  1.564 s
[INFO] Finished at: 2024-01-15T22:47:51Z
[INFO] ------------------------------------------------------------------------

```

 

 

---

**Affects:** 3.2.5

Start with the pom.xml and reproduce the warning using the long package and test class shown, running mvn clean test. Inspect how Surefire writes files under target/surefire-reports; done should be a defined, tested outcome for an overlong report filename without silently reporting zero tests and a successful build.

Written by the indexing model from the issue text.