JUnit standalone program doesn't discover tests

[exx8]

Steps to reproduce

run
java -jar ex1/lib/junit-platform-console-standalone-1.6.0-M1.jar --select-directory="./ex1/test"
with the following hierarchy

.
├── ex1
│   ├── lib
│   │   ├── apiguardian-api-1.1.0.jar
│   │   ├── junit-jupiter-api-5.6.0-M1.jar
│   │   ├── junit-platform-commons-1.6.0-M1.jar
│   │   ├── junit-platform-console-standalone-1.6.0-M1.jar
│   │   └── opentest4j-1.2.0.jar
│   ├── mavnat.iml
│   ├── out
│   │   ├── production
│   │   │   └── mavnat
│   │   │       ├── AVLTree$AVLNode.class
│   │   │       ├── AVLTree.class
│   │   │       ├── AVLTree$DeletionBalancer.class
│   │   │       ├── AVLTree$IAVLNode.class
│   │   │       ├── AVLTree$InsertionBalancer.class
│   │   │       ├── AVLTree$Rotations.class
│   │   │       └── TreePrinter.class
│   │   └── test
│   │       └── mavnat
│   │           ├── ActualAVLTree.class
│   │           ├── ActualAVLTree$IAVLNode.class
│   │           ├── AVLSanitizer.class
│   │           ├── AVLTreeTest.class
│   │           ├── AVLTreeTestExternal.class
│   │           ├── DeletionTest.class
│   │           ├── ExTester$10.class
│   │           ├── ExTester$11.class
│   │           ├── ExTester$12.class
│   │           ├── ExTester$13.class
│   │           ├── ExTester$14.class
│   │           ├── ExTester$1.class
│   │           ├── ExTester$2.class
│   │           ├── ExTester$3.class
│   │           ├── ExTester$4.class
│   │           ├── ExTester$5.class
│   │           ├── ExTester$6.class
│   │           ├── ExTester$7.class
│   │           ├── ExTester$8.class
│   │           ├── ExTester$9.class
│   │           ├── ExTester.class
│   │           ├── InsertionTest.class
│   │           ├── META-INF
│   │           │   └── mavnat.kotlin_module
│   │           ├── RotationsTest.class
│   │           ├── SplitTest.class
│   │           ├── SuccessStatus.class
│   │           ├── TesterUtils.class
│   │           ├── Tests.class
│   │           └── TestUtils.class
│   ├── pro-1.docx
│   ├── src
│   │   ├── AVLTree.java
│   │   └── TreePrinter.java
│   └── test
│       ├── AVLSanitizer.java
│       ├── AVLTreeTestExternal.java
│       ├── AVLTreeTest.java
│       ├── DeletionTest.java
│       ├── InsertionTest.java
│       ├── JoinTest.java
│       ├── RotationsTest.java
│       ├── SplitTest.java
│       └── TestUtils.java
└── ex2

Context

• Used versions (Jupiter/Vintage/Platform): linux junit platform 1.6
• Build Tool/IDE:
  java 11

I expect the launcher to run my tests. instead no test is run.

java -jar ex1/lib/junit-platform-console-standalone-1.6.0-M1.jar -cp ex1 --scan-classpath

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╷
├─ JUnit Jupiter ✔
└─ JUnit Vintage ✔

Test run finished after 29 ms
[         2 containers found      ]
[         0 containers skipped    ]
[         2 containers started    ]
[         0 containers aborted    ]
[         2 containers successful ]
[         0 containers failed     ]
[         0 tests found           ]
[         0 tests skipped         ]
[         0 tests started         ]
[         0 tests aborted         ]
[         0 tests successful      ]
[         0 tests failed          ]

[sormuras]

This kind of question is better suited to be asked over at StackOverflow. Thus, I'm closing this issue.

Maybe this answer already contains enough information to help you: https://stackoverflow.com/questions/52373469/how-to-launch-junit-5-platform-from-the-command-line-without-maven-gradle/52373592#52373592

Feel free to re-open this issue if you still struggle to get the standalone variant running.

[sormuras]

Note: this is related to #90 (#90 (comment)) as Jupiter and Vintage don't support "selecting tests from directories", which includes the --select-directory option of the console launcher.