Update tycho to 4.0.7

[akurtakov]

No description provided.

[github-actions]

Test Results

  107 files  ±  0  107 suites  ±0   1m 51s ⏱️ - 7m 25s
  665 tests ±  0  151 ✅  - 503  10 💤 ±0  0 ❌  - 1    504 🔥 +  504 
1 169 runs  +504  151 ✅  - 503  10 💤 ±0  0 ❌  - 1  1 008 🔥 +1 008 

For more details on these errors, see this check.

Results for commit b784e23. ± Comparison against base commit e76a84d.

♻️ This comment has been updated with latest results.

[HannesWell]

All these test-failures happen also in the attempt to update to Tycho 4.0.6: #1688

I haven't investigated it yet, maybe @laeubi can tell?

[laeubi]

From the buildfailure it is a problem due to classfile changes (ECJ update?)

[HannesWell]

From the buildfailure it is a problem due to classfile changes (ECJ update?)

The update to Tycho 4.0.6 already failed in #1688 and IIRC the comparator errors were not the problem and the fixed ECJ version was removed in an attempt to resolve that failure, but it seems like it didn't fix it.
But lets fix the comparator errors first.

[HannesWell]

From the buildfailure it is a problem due to classfile changes (ECJ update?)

The comparator errors are resolved and now we (again) have the 500 test-failures.

[laeubi]

As they all fail the same way maybe some change in P2 causing this, I would try to add a direct dependency in the test plugin to make sure its not caused by some indirect dependency missing now.

[HannesWell]

As they all fail the same way maybe some change in P2 causing this, I would try to add a direct dependency in the test plugin to make sure its not caused by some indirect dependency missing now.

The plugin org.eclipse.m2e.tests already requires the bundle org.eclipse.m2e.maven.runtime.

[laeubi]

As they all fail the same way maybe some change in P2 causing this, I would try to add a direct dependency in the test plugin to make sure its not caused by some indirect dependency missing now.

The plugin org.eclipse.m2e.tests already requires the bundle org.eclipse.m2e.maven.runtime.

The error says that the bundle org.eclipse.m2e.tests.common can not find the class...

[HannesWell]

As they all fail the same way maybe some change in P2 causing this, I would try to add a direct dependency in the test plugin to make sure its not caused by some indirect dependency missing now.

The plugin org.eclipse.m2e.tests already requires the bundle org.eclipse.m2e.maven.runtime.

The error says that the bundle org.eclipse.m2e.tests.common can not find the class...

Right (I just read the first line and checked the test class). But even org.eclipse.m2e.tests.common already requires org.eclipse.m2e.maven.runtime.

[laeubi]

Interestingly I get these errors locally as well with Tycho 4.0.4

[laeubi]

As I can "reproduce" it here with Tycho 4.0.4 I suspect it must be some kind of classpath ordering problem, e.g that for consistency we order the dependencies differently (either Tycho or P2)...