Dependency resolution fails with Tycho >= 2.3.0

[AhmetBilgin]

Hi,

Scenario
recently I tried to update our targetdefinition to Eclipse 4.21 (2021-09) and therefore added the new url (http://download.eclipse.org/releases/2021-09 via p2 Proxy in nexus) and updated the included feature versions. The targetdefinition worked in the Eclipse-PDE IDE build.
But I had problems with the headless build. I don't know if the problems are tycho related or nexus related. So I'm just going to share my findings:

Reproducibility
I can reproduce this with the tycho rcp demo project when using a nexus p2 proxy for the eclipse-2021-9 release and tycho version >= 2.3.0.

What does not work:

• Tycho >=2.3.0 and URL: (Our internal Nexus P2 Proxy) http://nexus-server/nexus/content/repositories/Eclipse-2021-09-R

What works:
I also tried Tycho version 2.2.0 as I have read in the release notes that version 2.3.0 has a stricter dependency resolution.

• Tycho 2.2.0 and URL: (our internal Nexus P2 Proxy) http://nexus-server/nexus/content/repositories/Eclipse-2021-09-R
  • Nexus 2.12
• Tycho >= 2.2.0 and URL: https://download.eclipse.org/releases/2021-09
• Tycho >= 2.2.0 and mirroring with b3aggregator and serving via nexus

Exception I'm getting when using tycho >= 2.3.0 and the nexus proxy of Eclipse-2021-09:

Click to expand stacktrace!

$ mvn clean verify
[INFO] Scanning for projects...
[INFO] Computing target platform for MavenProject: example.group:eclipse-repository:1.0.0-SNAPSHOT @ /data/home/xyz/projects/tycho/demo/itp04-rcp/eclipse-repository/pom.xml
[INFO] Resolving dependencies of MavenProject: example.group:eclipse-repository:1.0.0-SNAPSHOT @ /data/home/xyz/projects/tycho/demo/itp04-rcp/eclipse-repository/pom.xml
[INFO] Resolving class path of MavenProject: example.group:eclipse-repository:1.0.0-SNAPSHOT @ /data/home/xyz/projects/tycho/demo/itp04-rcp/eclipse-repository/pom.xml
[INFO] Computing target platform for MavenProject: example.group:example-bundle:0.1.0-SNAPSHOT @ /data/home/xyz/projects/tycho/demo/itp04-rcp/example-bundle/pom.xml
[INFO] Resolving dependencies of MavenProject: example.group:example-bundle:0.1.0-SNAPSHOT @ /data/home/xyz/projects/tycho/demo/itp04-rcp/example-bundle/pom.xml
[INFO] Resolving class path of MavenProject: example.group:example-bundle:0.1.0-SNAPSHOT @ /data/home/xyz/projects/tycho/demo/itp04-rcp/example-bundle/pom.xml
[ERROR] Internal error: java.lang.RuntimeException: org.osgi.framework.BundleException: Bundle example-bundle cannot be resolved:example-bundle [68]
[ERROR] Unresolved requirement: Require-Bundle: org.eclipse.ui; bundle-version="3.6.0"
[ERROR] -> Bundle-SymbolicName: org.eclipse.ui; bundle-version="3.119.100.v20210830-0942"; singleton:="true"
[ERROR] org.eclipse.ui [5]
[ERROR] Unresolved requirement: Require-Bundle: org.eclipse.ui.workbench; bundle-version="[3.120.0,4.0.0)"; visibility:="reexport"
[ERROR] -> Bundle-SymbolicName: org.eclipse.ui.workbench; bundle-version="3.123.0.v20210817-0704"; singleton:="true"
[ERROR] org.eclipse.ui.workbench [64]
[ERROR] Unresolved requirement: Import-Package: org.eclipse.e4.ui.internal.workbench.addons
[ERROR] -> Export-Package: org.eclipse.e4.ui.internal.workbench.addons; bundle-symbolic-name="org.eclipse.e4.ui.workbench"; bundle-version="1.13.0.v20210521-0741"; version="0.0.0"; x-internal:="true"
[ERROR] org.eclipse.e4.ui.workbench [50]
[ERROR] Unresolved requirement: Require-Bundle: org.eclipse.e4.ui.model.workbench; bundle-version="1.2.0"
[ERROR] -> Bundle-SymbolicName: org.eclipse.e4.ui.model.workbench; bundle-version="2.2.0.v20210727-1533"; singleton:="true"
[ERROR] org.eclipse.e4.ui.model.workbench [48]
[ERROR] Unresolved requirement: Require-Bundle: org.eclipse.e4.core.services; bundle-version="0.9.0"
[ERROR] -> Bundle-SymbolicName: org.eclipse.e4.core.services; bundle-version="2.3.0.v20210723-1034"; singleton:="true"
[ERROR] org.eclipse.e4.core.services [32]
[ERROR] Unresolved requirement: Require-Capability: osgi.extender; filter:="(&(osgi.extender=osgi.component)(version>=1.2)(!(version>=2.0)))"
[ERROR] Unresolved requirement: Require-Bundle: org.eclipse.e4.ui.services; bundle-version="0.9.0"
[ERROR] -> Bundle-SymbolicName: org.eclipse.e4.ui.services; bundle-version="1.5.0.v20210115-1333"; singleton:="true"
[ERROR] org.eclipse.e4.ui.services [41]
[ERROR] Unresolved requirement: Require-Bundle: org.eclipse.e4.core.services; bundle-version="0.9.0"
[ERROR] -> Bundle-SymbolicName: org.eclipse.e4.core.services; bundle-version="2.3.0.v20210723-1034"; singleton:="true"
[ERROR] Unresolved requirement: Require-Bundle: org.eclipse.e4.core.services; bundle-version="0.9.0"
[ERROR] -> Bundle-SymbolicName: org.eclipse.e4.core.services; bundle-version="2.3.0.v20210723-1034"; singleton:="true"
[ERROR] Unresolved requirement: Import-Package: org.eclipse.e4.core.commands
[ERROR] -> Export-Package: org.eclipse.e4.core.commands; bundle-symbolic-name="org.eclipse.e4.core.commands"; bundle-version="1.0.0.v20210507-1901"; version="0.0.0"
[ERROR] org.eclipse.e4.core.commands [28]
[ERROR] Unresolved requirement: Import-Package: org.eclipse.e4.core.services.log
[ERROR] -> Export-Package: org.eclipse.e4.core.services.log; bundle-symbolic-name="org.eclipse.e4.core.services"; bundle-version="2.3.0.v20210723-1034"; version="0.0.0"; x-friends:="org.eclipse.e4.ui.bindings, org.eclipse.e4.ui.services, org.eclipse.e4.ui.workbench, org.eclipse.e4.ui.workbench.renderers.swt, org.eclipse.e4.ui.workbench.swt, org.eclipse.ui.workbench, org.eclipse.e4.core.commands"
[ERROR] Unresolved requirement: Import-Package: org.eclipse.e4.ui.internal.workbench
[ERROR] -> Export-Package: org.eclipse.e4.ui.internal.workbench; bundle-symbolic-name="org.eclipse.e4.ui.workbench"; bundle-version="1.13.0.v20210521-0741"; version="0.0.0"; x-friends:="org.eclipse.e4.ui.workbench.fragment, org.eclipse.e4.ui.workbench.renderers.swt, org.eclipse.e4.ui.workbench.swt, org.eclipse.ui.workbench, org.eclipse.ui.ide.application, org.eclipse.ui.ide, org.eclipse.e4.emf.xpath.test"
[ERROR] Unresolved requirement: Import-Package: org.eclipse.e4.core.commands.internal
[ERROR] -> Export-Package: org.eclipse.e4.core.commands.internal; bundle-symbolic-name="org.eclipse.e4.core.commands"; bundle-version="1.0.0.v20210507-1901"; version="0.0.0"; x-friends:="org.eclipse.e4.ui.bindings,org.eclipse.ui.workbench"
[ERROR] -> [Help 1]
org.apache.maven.InternalErrorException: Internal error: java.lang.RuntimeException: org.osgi.framework.BundleException: Bundle example-bundle cannot be resolved:example-bundle [68]
Unresolved requirement: Require-Bundle: org.eclipse.ui; bundle-version="3.6.0"
-> Bundle-SymbolicName: org.eclipse.ui; bundle-version="3.119.100.v20210830-0942"; singleton:="true"
org.eclipse.ui [5]
Unresolved requirement: Require-Bundle: org.eclipse.ui.workbench; bundle-version="[3.120.0,4.0.0)"; visibility:="reexport"
-> Bundle-SymbolicName: org.eclipse.ui.workbench; bundle-version="3.123.0.v20210817-0704"; singleton:="true"
org.eclipse.ui.workbench [64]
Unresolved requirement: Import-Package: org.eclipse.e4.ui.internal.workbench.addons
-> Export-Package: org.eclipse.e4.ui.internal.workbench.addons; bundle-symbolic-name="org.eclipse.e4.ui.workbench"; bundle-version="1.13.0.v20210521-0741"; version="0.0.0"; x-internal:="true"
org.eclipse.e4.ui.workbench [50]
Unresolved requirement: Require-Bundle: org.eclipse.e4.ui.model.workbench; bundle-version="1.2.0"
-> Bundle-SymbolicName: org.eclipse.e4.ui.model.workbench; bundle-version="2.2.0.v20210727-1533"; singleton:="true"
org.eclipse.e4.ui.model.workbench [48]
Unresolved requirement: Require-Bundle: org.eclipse.e4.core.services; bundle-version="0.9.0"
-> Bundle-SymbolicName: org.eclipse.e4.core.services; bundle-version="2.3.0.v20210723-1034"; singleton:="true"
org.eclipse.e4.core.services [32]
Unresolved requirement: Require-Capability: osgi.extender; filter:="(&(osgi.extender=osgi.component)(version>=1.2)(!(version>=2.0)))"
Unresolved requirement: Require-Bundle: org.eclipse.e4.ui.services; bundle-version="0.9.0"
-> Bundle-SymbolicName: org.eclipse.e4.ui.services; bundle-version="1.5.0.v20210115-1333"; singleton:="true"
org.eclipse.e4.ui.services [41]
Unresolved requirement: Require-Bundle: org.eclipse.e4.core.services; bundle-version="0.9.0"
-> Bundle-SymbolicName: org.eclipse.e4.core.services; bundle-version="2.3.0.v20210723-1034"; singleton:="true"
Unresolved requirement: Require-Bundle: org.eclipse.e4.core.services; bundle-version="0.9.0"
-> Bundle-SymbolicName: org.eclipse.e4.core.services; bundle-version="2.3.0.v20210723-1034"; singleton:="true"
Unresolved requirement: Import-Package: org.eclipse.e4.core.commands
-> Export-Package: org.eclipse.e4.core.commands; bundle-symbolic-name="org.eclipse.e4.core.commands"; bundle-version="1.0.0.v20210507-1901"; version="0.0.0"
org.eclipse.e4.core.commands [28]
Unresolved requirement: Import-Package: org.eclipse.e4.core.services.log
-> Export-Package: org.eclipse.e4.core.services.log; bundle-symbolic-name="org.eclipse.e4.core.services"; bundle-version="2.3.0.v20210723-1034"; version="0.0.0"; x-friends:="org.eclipse.e4.ui.bindings, org.eclipse.e4.ui.services, org.eclipse.e4.ui.workbench, org.eclipse.e4.ui.workbench.renderers.swt, org.eclipse.e4.ui.workbench.swt, org.eclipse.ui.workbench, org.eclipse.e4.core.commands"
Unresolved requirement: Import-Package: org.eclipse.e4.ui.internal.workbench
-> Export-Package: org.eclipse.e4.ui.internal.workbench; bundle-symbolic-name="org.eclipse.e4.ui.workbench"; bundle-version="1.13.0.v20210521-0741"; version="0.0.0"; x-friends:="org.eclipse.e4.ui.workbench.fragment, org.eclipse.e4.ui.workbench.renderers.swt, org.eclipse.e4.ui.workbench.swt, org.eclipse.ui.workbench, org.eclipse.ui.ide.application, org.eclipse.ui.ide, org.eclipse.e4.emf.xpath.test"
Unresolved requirement: Import-Package: org.eclipse.e4.core.commands.internal
-> Export-Package: org.eclipse.e4.core.commands.internal; bundle-symbolic-name="org.eclipse.e4.core.commands"; bundle-version="1.0.0.v20210507-1901"; version="0.0.0"; x-friends:="org.eclipse.e4.ui.bindings,org.eclipse.ui.workbench"

at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:120)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:566)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)

Caused by: java.lang.RuntimeException: org.osgi.framework.BundleException: Bundle example-bundle cannot be resolved:example-bundle [68]
Unresolved requirement: Require-Bundle: org.eclipse.ui; bundle-version="3.6.0"
-> Bundle-SymbolicName: org.eclipse.ui; bundle-version="3.119.100.v20210830-0942"; singleton:="true"
org.eclipse.ui [5]
Unresolved requirement: Require-Bundle: org.eclipse.ui.workbench; bundle-version="[3.120.0,4.0.0)"; visibility:="reexport"
-> Bundle-SymbolicName: org.eclipse.ui.workbench; bundle-version="3.123.0.v20210817-0704"; singleton:="true"
org.eclipse.ui.workbench [64]
Unresolved requirement: Import-Package: org.eclipse.e4.ui.internal.workbench.addons
-> Export-Package: org.eclipse.e4.ui.internal.workbench.addons; bundle-symbolic-name="org.eclipse.e4.ui.workbench"; bundle-version="1.13.0.v20210521-0741"; version="0.0.0"; x-internal:="true"
org.eclipse.e4.ui.workbench [50]
Unresolved requirement: Require-Bundle: org.eclipse.e4.ui.model.workbench; bundle-version="1.2.0"
-> Bundle-SymbolicName: org.eclipse.e4.ui.model.workbench; bundle-version="2.2.0.v20210727-1533"; singleton:="true"
org.eclipse.e4.ui.model.workbench [48]
Unresolved requirement: Require-Bundle: org.eclipse.e4.core.services; bundle-version="0.9.0"
-> Bundle-SymbolicName: org.eclipse.e4.core.services; bundle-version="2.3.0.v20210723-1034"; singleton:="true"
org.eclipse.e4.core.services [32]
Unresolved requirement: Require-Capability: osgi.extender; filter:="(&(osgi.extender=osgi.component)(version>=1.2)(!(version>=2.0)))"
Unresolved requirement: Require-Bundle: org.eclipse.e4.ui.services; bundle-version="0.9.0"
-> Bundle-SymbolicName: org.eclipse.e4.ui.services; bundle-version="1.5.0.v20210115-1333"; singleton:="true"
org.eclipse.e4.ui.services [41]
Unresolved requirement: Require-Bundle: org.eclipse.e4.core.services; bundle-version="0.9.0"
-> Bundle-SymbolicName: org.eclipse.e4.core.services; bundle-version="2.3.0.v20210723-1034"; singleton:="true"
Unresolved requirement: Require-Bundle: org.eclipse.e4.core.services; bundle-version="0.9.0"
-> Bundle-SymbolicName: org.eclipse.e4.core.services; bundle-version="2.3.0.v20210723-1034"; singleton:="true"
Unresolved requirement: Import-Package: org.eclipse.e4.core.commands
-> Export-Package: org.eclipse.e4.core.commands; bundle-symbolic-name="org.eclipse.e4.core.commands"; bundle-version="1.0.0.v20210507-1901"; version="0.0.0"
org.eclipse.e4.core.commands [28]
Unresolved requirement: Import-Package: org.eclipse.e4.core.services.log
-> Export-Package: org.eclipse.e4.core.services.log; bundle-symbolic-name="org.eclipse.e4.core.services"; bundle-version="2.3.0.v20210723-1034"; version="0.0.0"; x-friends:="org.eclipse.e4.ui.bindings, org.eclipse.e4.ui.services, org.eclipse.e4.ui.workbench, org.eclipse.e4.ui.workbench.renderers.swt, org.eclipse.e4.ui.workbench.swt, org.eclipse.ui.workbench, org.eclipse.e4.core.commands"
Unresolved requirement: Import-Package: org.eclipse.e4.ui.internal.workbench
-> Export-Package: org.eclipse.e4.ui.internal.workbench; bundle-symbolic-name="org.eclipse.e4.ui.workbench"; bundle-version="1.13.0.v20210521-0741"; version="0.0.0"; x-friends:="org.eclipse.e4.ui.workbench.fragment, org.eclipse.e4.ui.workbench.renderers.swt, org.eclipse.e4.ui.workbench.swt, org.eclipse.ui.workbench, org.eclipse.ui.ide.application, org.eclipse.ui.ide, org.eclipse.e4.emf.xpath.test"
Unresolved requirement: Import-Package: org.eclipse.e4.core.commands.internal
-> Export-Package: org.eclipse.e4.core.commands.internal; bundle-symbolic-name="org.eclipse.e4.core.commands"; bundle-version="1.0.0.v20210507-1901"; version="0.0.0"; x-friends:="org.eclipse.e4.ui.bindings,org.eclipse.ui.workbench"

at org.eclipse.tycho.core.osgitools.OsgiBundleProject.getResolverState (OsgiBundleProject.java:329)
at org.eclipse.tycho.core.osgitools.OsgiBundleProject.resolveClassPath (OsgiBundleProject.java:196)
at org.eclipse.tycho.core.resolver.DefaultTychoResolver.resolveProject (DefaultTychoResolver.java:173)
at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.lambda$resolveProjects$0 (TychoMavenLifecycleParticipant.java:147)
at java.util.stream.ForEachOps$ForEachOp$OfRef.accept (ForEachOps.java:183)
at java.util.stream.WhileOps$1$1.accept (WhileOps.java:99)
at java.util.ArrayList$ArrayListSpliterator.tryAdvance (ArrayList.java:1632)
at java.util.stream.ReferencePipeline.forEachWithCancel (ReferencePipeline.java:127)
at java.util.stream.AbstractPipeline.copyIntoWithCancel (AbstractPipeline.java:502)
at java.util.stream.AbstractPipeline.copyInto (AbstractPipeline.java:488)
at java.util.stream.AbstractPipeline.wrapAndCopyInto (AbstractPipeline.java:474)
at java.util.stream.ForEachOps$ForEachOp.evaluateSequential (ForEachOps.java:150)
at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential (ForEachOps.java:173)
at java.util.stream.AbstractPipeline.evaluate (AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.forEach (ReferencePipeline.java:497)
at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.resolveProjects (TychoMavenLifecycleParticipant.java:178)
at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead (TychoMavenLifecycleParticipant.java:105)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:264)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:566)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)

Caused by: org.osgi.framework.BundleException: Bundle example-bundle cannot be resolved:example-bundle [68]
Unresolved requirement: Require-Bundle: org.eclipse.ui; bundle-version="3.6.0"
-> Bundle-SymbolicName: org.eclipse.ui; bundle-version="3.119.100.v20210830-0942"; singleton:="true"
org.eclipse.ui [5]
Unresolved requirement: Require-Bundle: org.eclipse.ui.workbench; bundle-version="[3.120.0,4.0.0)"; visibility:="reexport"
-> Bundle-SymbolicName: org.eclipse.ui.workbench; bundle-version="3.123.0.v20210817-0704"; singleton:="true"
org.eclipse.ui.workbench [64]
Unresolved requirement: Import-Package: org.eclipse.e4.ui.internal.workbench.addons
-> Export-Package: org.eclipse.e4.ui.internal.workbench.addons; bundle-symbolic-name="org.eclipse.e4.ui.workbench"; bundle-version="1.13.0.v20210521-0741"; version="0.0.0"; x-internal:="true"
org.eclipse.e4.ui.workbench [50]
Unresolved requirement: Require-Bundle: org.eclipse.e4.ui.model.workbench; bundle-version="1.2.0"
-> Bundle-SymbolicName: org.eclipse.e4.ui.model.workbench; bundle-version="2.2.0.v20210727-1533"; singleton:="true"
org.eclipse.e4.ui.model.workbench [48]
Unresolved requirement: Require-Bundle: org.eclipse.e4.core.services; bundle-version="0.9.0"
-> Bundle-SymbolicName: org.eclipse.e4.core.services; bundle-version="2.3.0.v20210723-1034"; singleton:="true"
org.eclipse.e4.core.services [32]
Unresolved requirement: Require-Capability: osgi.extender; filter:="(&(osgi.extender=osgi.component)(version>=1.2)(!(version>=2.0)))"
Unresolved requirement: Require-Bundle: org.eclipse.e4.ui.services; bundle-version="0.9.0"
-> Bundle-SymbolicName: org.eclipse.e4.ui.services; bundle-version="1.5.0.v20210115-1333"; singleton:="true"
org.eclipse.e4.ui.services [41]
Unresolved requirement: Require-Bundle: org.eclipse.e4.core.services; bundle-version="0.9.0"
-> Bundle-SymbolicName: org.eclipse.e4.core.services; bundle-version="2.3.0.v20210723-1034"; singleton:="true"
Unresolved requirement: Require-Bundle: org.eclipse.e4.core.services; bundle-version="0.9.0"
-> Bundle-SymbolicName: org.eclipse.e4.core.services; bundle-version="2.3.0.v20210723-1034"; singleton:="true"
Unresolved requirement: Import-Package: org.eclipse.e4.core.commands
-> Export-Package: org.eclipse.e4.core.commands; bundle-symbolic-name="org.eclipse.e4.core.commands"; bundle-version="1.0.0.v20210507-1901"; version="0.0.0"
org.eclipse.e4.core.commands [28]
Unresolved requirement: Import-Package: org.eclipse.e4.core.services.log
-> Export-Package: org.eclipse.e4.core.services.log; bundle-symbolic-name="org.eclipse.e4.core.services"; bundle-version="2.3.0.v20210723-1034"; version="0.0.0"; x-friends:="org.eclipse.e4.ui.bindings, org.eclipse.e4.ui.services, org.eclipse.e4.ui.workbench, org.eclipse.e4.ui.workbench.renderers.swt, org.eclipse.e4.ui.workbench.swt, org.eclipse.ui.workbench, org.eclipse.e4.core.commands"
Unresolved requirement: Import-Package: org.eclipse.e4.ui.internal.workbench
-> Export-Package: org.eclipse.e4.ui.internal.workbench; bundle-symbolic-name="org.eclipse.e4.ui.workbench"; bundle-version="1.13.0.v20210521-0741"; version="0.0.0"; x-friends:="org.eclipse.e4.ui.workbench.fragment, org.eclipse.e4.ui.workbench.renderers.swt, org.eclipse.e4.ui.workbench.swt, org.eclipse.ui.workbench, org.eclipse.ui.ide.application, org.eclipse.ui.ide, org.eclipse.e4.emf.xpath.test"
Unresolved requirement: Import-Package: org.eclipse.e4.core.commands.internal
-> Export-Package: org.eclipse.e4.core.commands.internal; bundle-symbolic-name="org.eclipse.e4.core.commands"; bundle-version="1.0.0.v20210507-1901"; version="0.0.0"; x-friends:="org.eclipse.e4.ui.bindings,org.eclipse.ui.workbench"

at org.eclipse.tycho.core.osgitools.EquinoxResolver.assertResolved (EquinoxResolver.java:510)
at org.eclipse.tycho.core.osgitools.EquinoxResolver.newResolvedState (EquinoxResolver.java:169)
at org.eclipse.tycho.core.osgitools.OsgiBundleProject.getResolverState (OsgiBundleProject.java:326)
at org.eclipse.tycho.core.osgitools.OsgiBundleProject.resolveClassPath (OsgiBundleProject.java:196)
at org.eclipse.tycho.core.resolver.DefaultTychoResolver.resolveProject (DefaultTychoResolver.java:173)
at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.lambda$resolveProjects$0 (TychoMavenLifecycleParticipant.java:147)
at java.util.stream.ForEachOps$ForEachOp$OfRef.accept (ForEachOps.java:183)
at java.util.stream.WhileOps$1$1.accept (WhileOps.java:99)
at java.util.ArrayList$ArrayListSpliterator.tryAdvance (ArrayList.java:1632)
at java.util.stream.ReferencePipeline.forEachWithCancel (ReferencePipeline.java:127)
at java.util.stream.AbstractPipeline.copyIntoWithCancel (AbstractPipeline.java:502)
at java.util.stream.AbstractPipeline.copyInto (AbstractPipeline.java:488)
at java.util.stream.AbstractPipeline.wrapAndCopyInto (AbstractPipeline.java:474)
at java.util.stream.ForEachOps$ForEachOp.evaluateSequential (ForEachOps.java:150)
at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential (ForEachOps.java:173)
at java.util.stream.AbstractPipeline.evaluate (AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.forEach (ReferencePipeline.java:497)
at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.resolveProjects (TychoMavenLifecycleParticipant.java:178)
at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead (TychoMavenLifecycleParticipant.java:105)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:264)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:566)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)

[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/InternalErrorException

Any ideas?
Is this a nexus or tycho related issue?

Regards,
Ahmet

[Bananeweizen]

Can you try Tycho 2.3.0 and the original Eclipse P2 URL? If that one works, then it's surely the Nexus mirror. That being said, I had never issues with using Nexus as internal mirror. However, I can't test that anymore, since we switched to Artifactory meanwhile.