The egit [1] and egit-github [2] gerrit-trigger build jobs used to verify
changes uploaded for code review experience some strange errors
since a couple of days.
[1] reproducably hits a NPE (using tycho 0.12)
[ERROR] Failed to execute goal org.eclipse.tycho:tycho-p2-
plugin:0.12.0:update-site-p2-
metadata (default-update-site-p2-
metadata) on project org.eclipse.egit-updatesite: Cannot generate P2 metadata: java.lang.NullPointerException -> [Help 1]
org.apache.maven.lifecycle.
LifecycleExecutionException: Failed to execute goal org.eclipse.tycho:tycho-p2-
plugin:0.12.0:update-site-p2-
metadata (default-update-site-p2-
metadata) on project org.eclipse.egit-updatesite: Cannot generate P2 metadata
at org.apache.maven.lifecycle.
internal.MojoExecutor.execute(
MojoExecutor.java:217)
at org.apache.maven.lifecycle.
internal.MojoExecutor.execute(
MojoExecutor.java:153)
at org.apache.maven.lifecycle.
internal.MojoExecutor.execute(
MojoExecutor.java:145)
at org.apache.maven.lifecycle.
internal.
LifecycleModuleBuilder.
buildProject(
LifecycleModuleBuilder.java:
84)
at org.apache.maven.lifecycle.
internal.
LifecycleModuleBuilder.
buildProject(
LifecycleModuleBuilder.java:
59)
at org.apache.maven.lifecycle.
internal.LifecycleStarter.
singleThreadedBuild(
LifecycleStarter.java:183)
at org.apache.maven.lifecycle.
internal.LifecycleStarter.
execute(LifecycleStarter.java:
161)
at org.apache.maven.DefaultMaven.
doExecute(DefaultMaven.java:
319)
at org.apache.maven.DefaultMaven.
execute(DefaultMaven.java:156)
at org.apache.maven.cli.MavenCli.
execute(MavenCli.java:537)
at org.apache.maven.cli.MavenCli.
doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.
main(MavenCli.java:141)
at sun.reflect.
NativeMethodAccessorImpl.
invoke0(Native Method)
at sun.reflect.
NativeMethodAccessorImpl.
invoke(
NativeMethodAccessorImpl.java:
39)
at sun.reflect.
DelegatingMethodAccessorImpl.
invoke(
DelegatingMethodAccessorImpl.
java:25)
at java.lang.reflect.Method.
invoke(Method.java:597)
at org.codehaus.plexus.
classworlds.launcher.Launcher.
launchEnhanced(Launcher.java:
290)
at org.codehaus.plexus.
classworlds.launcher.Launcher.
launch(Launcher.java:230)
at org.codehaus.plexus.
classworlds.launcher.Launcher.
mainWithExitCode(Launcher.
java:409)
at org.codehaus.plexus.
classworlds.launcher.Launcher.
main(Launcher.java:352)
Caused by: org.apache.maven.plugin.
MojoExecutionException: Cannot generate P2 metadata
at org.eclipse.tycho.plugins.p2.
AbstractP2MetadataMojo.
execute(
AbstractP2MetadataMojo.java:
95)
at org.apache.maven.plugin.
DefaultBuildPluginManager.
executeMojo(
DefaultBuildPluginManager.
java:101)
at org.apache.maven.lifecycle.
internal.MojoExecutor.execute(
MojoExecutor.java:209)
... 19 more
Caused by: java.lang.RuntimeException: java.lang.NullPointerException
at org.eclipse.tycho.p2.facade.
internal.
P2ApplicationLauncher.execute(
P2ApplicationLauncher.java:
127)
at org.eclipse.tycho.plugins.p2.
AbstractP2MetadataMojo.
generateMetadata(
AbstractP2MetadataMojo.java:
112)
at org.eclipse.tycho.plugins.p2.
AbstractP2MetadataMojo.
execute(
AbstractP2MetadataMojo.java:
88)
... 21 more
Caused by: java.lang.NullPointerException
at org.eclipse.tycho.core.
osgitools.DefaultBundleReader.
toProperties(
DefaultBundleReader.java:162)
at org.eclipse.tycho.core.
osgitools.DefaultBundleReader.
parseHeader(
DefaultBundleReader.java:173)
at org.eclipse.tycho.core.
osgitools.OsgiBundleProject.
readArtifactKey(
OsgiBundleProject.java:130)
at org.eclipse.tycho.p2.facade.
internal.
P2ApplicationLauncher.
addBundle(
P2ApplicationLauncher.java:
132)
at org.eclipse.tycho.p2.facade.
internal.
P2ApplicationLauncher.execute(
P2ApplicationLauncher.java:99)
... 23 more
[2] (using tycho 0.13) seems to fail to download some of the tycho
plugins and then fails with a ClassNotFoundException
Wiping the workspace to remove the job private maven repo doesn't seem
to help in both cases.
I tried this many times, also Jan Sievers looked into these failing jobs
and we are running out
of ideas what could be the cause of these.build errors. Today I also saw
the second issue when
running the egit-github build locally. Again wiping the local maven
repository didn't resolve the
issue. What helped was to remove the tycho plugins from the local maven
repository and then
rerunning the build, wiping the complete Maven repository didn't help.
[1]
https://hudson.eclipse.org/sandbox/job/egit.gerrit/
[2]
https://hudson.eclipse.org/sandbox/job/egit-github.gerrit/ --
Matthias