tbouron commented on issue #1049: Retry flaky unit tests URL: https://github.com/apache/brooklyn-server/pull/1049#issuecomment-471919561 Hey @geomacy. So we spent some time on this and it turns out that it is a problem specifically on MacOS. It was introduced when the version of `felix.framework.version` was bumped to `5.6.10`. Long story short, this version changed how Felix framework handles extension bundles. It appends bundles to the classpath as they're installed. So when e.g. a test in `org.apache.brooklyn.launcher.WebAppRunnerTest` runs all of the extension bundles are cached and added to the classpath. When the test completes the cache directory is deleted. But when a second test runs, EmbeddedFelixFramework discovers the bundles from the last test which triggers: ``` 2018-11-30 16:43:44,041 WARN o.a.b.r.f.EmbeddedFelixFramework [main]: Unable to install manifest from jar:file:/Users/sam/.brooklyn/osgi/cache/wcx9QUag/bundle175/version0.0/bundle.jar!/META-INF/MANIFEST.MF: java.lang.IllegalStateException: Problem installing extension bundle jar:file:/Users/sam/.brooklyn/osgi/cache/wcx9QUag/bundle175/version0.0/bundle.jar!/META-INF/MANIFEST.MF: java.io.FileNotFoundException: /Users/sam/.brooklyn/osgi/cache/wcx9QUag/bundle175/version0.0/bundle.jar (No such file or directory) java.lang.IllegalStateException: Problem installing extension bundle jar:file:/Users/sam/.brooklyn/osgi/cache/wcx9QUag/bundle175/version0.0/bundle.jar!/META-INF/MANIFEST.MF: java.io.FileNotFoundException: /Users/sam/.brooklyn/osgi/cache/wcx9QUag/bundle175/version0.0/bundle.jar (No such file or directory) at org.apache.brooklyn.rt.felix.EmbeddedFelixFramework.installExtensionBundle(EmbeddedFelixFramework.java:212) [brooklyn-rt-felix-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT] at org.apache.brooklyn.rt.felix.EmbeddedFelixFramework.installBootBundles(EmbeddedFelixFramework.java:143) [brooklyn-rt-felix-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT] at org.apache.brooklyn.rt.felix.EmbeddedFelixFramework.newFrameworkStarted(EmbeddedFelixFramework.java:106) [brooklyn-rt-felix-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT] at org.apache.brooklyn.rt.felix.EmbeddedFramework.getFramework(EmbeddedFramework.java:30) [brooklyn-rt-felix-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT] at org.apache.brooklyn.util.core.osgi.Osgis.getFramework(Osgis.java:301) [brooklyn-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT] at org.apache.brooklyn.core.mgmt.ha.OsgiManager.start(OsgiManager.java:273) [brooklyn-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT] at org.apache.brooklyn.core.mgmt.internal.LocalManagementContext.<init>(LocalManagementContext.java:184) [brooklyn-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT] at org.apache.brooklyn.launcher.common.BasicLauncher.initManagementContext(BasicLauncher.java:539) [brooklyn-launcher-common-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT] at org.apache.brooklyn.launcher.BrooklynLauncher.initManagementContext(BrooklynLauncher.java:241) [classes/:na] at org.apache.brooklyn.launcher.common.BasicLauncher.startPartOne(BasicLauncher.java:394) [brooklyn-launcher-common-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT] at org.apache.brooklyn.launcher.common.BasicLauncher.start(BasicLauncher.java:379) [brooklyn-launcher-common-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT] at org.apache.brooklyn.launcher.WebAppRunnerTest.testStartWithLauncher(WebAppRunnerTest.java:143) [test-classes/:na] ```
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