See 
<https://builds.apache.org/job/Log4j%202%203.x/414/display/redirect?page=changes>

Changes:

[rgoers] LOG4J2-2621 - Initial commit

[rgoers] LOG4J2-2621 - Initial commit

[rgoers] Comment out code in the Activator so it compiles

[rgoers] LOG4J2-2621 - OSGi tests pass

[rgoers] LOG4J2-2621 - Provide compatibility for Log4j 2 2.x plugins

[rgoers] Remove duplicate changes.xml entriss. Document LOG4J2-2621

[rgoers] LOG4J2-2621 - update docs

------------------------------------------
[...truncated 9.29 MB...]
[INFO] --- revapi-maven-plugin:0.10.5:check (default) @ 
log4j-layout-jackson-yaml ---
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 33 iota=63
[INFO] 
[INFO] --- maven-install-plugin:2.5.2:install (default-install) @ 
log4j-layout-jackson-yaml ---
[INFO] Installing 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-layout-jackson-yaml/target/log4j-layout-jackson-yaml-3.0.0-SNAPSHOT.jar>
 to 
/home/jenkins/jenkins-slave/maven-repositories/1/org/apache/logging/log4j/log4j-layout-jackson-yaml/3.0.0-SNAPSHOT/log4j-layout-jackson-yaml-3.0.0-SNAPSHOT.jar
[INFO] Installing 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-layout-jackson-yaml/pom.xml>
 to 
/home/jenkins/jenkins-slave/maven-repositories/1/org/apache/logging/log4j/log4j-layout-jackson-yaml/3.0.0-SNAPSHOT/log4j-layout-jackson-yaml-3.0.0-SNAPSHOT.pom
[INFO] Installing 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-layout-jackson-yaml/target/log4j-layout-jackson-yaml-3.0.0-SNAPSHOT-sources.jar>
 to 
/home/jenkins/jenkins-slave/maven-repositories/1/org/apache/logging/log4j/log4j-layout-jackson-yaml/3.0.0-SNAPSHOT/log4j-layout-jackson-yaml-3.0.0-SNAPSHOT-sources.jar
[INFO] Installing 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-layout-jackson-yaml/target/log4j-layout-jackson-yaml-3.0.0-SNAPSHOT-test-sources.jar>
 to 
/home/jenkins/jenkins-slave/maven-repositories/1/org/apache/logging/log4j/log4j-layout-jackson-yaml/3.0.0-SNAPSHOT/log4j-layout-jackson-yaml-3.0.0-SNAPSHOT-test-sources.jar
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 33 iota=63
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 33 iota=63
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 16 iota=63
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building Apache Log4j Core Integration Tests 3.0.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:3.1.0:clean (default-clean) @ log4j-core-its ---
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 16 iota=63
[INFO] 
[INFO] --- maven-remote-resources-plugin:1.5:process (process-resource-bundles) 
@ log4j-core-its ---
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 16 iota=63
[INFO] 
[INFO] --- maven-remote-resources-plugin:1.5:process (default) @ log4j-core-its 
---
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 16 iota=63
[INFO] 
[INFO] --- maven-resources-plugin:3.0.2:resources (default-resources) @ 
log4j-core-its ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO] Copying 3 resources
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 16 iota=63
[INFO] 
[INFO] --- maven-compiler-plugin:3.7.0:compile (default-compile) @ 
log4j-core-its ---
[INFO] No sources to compile
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 16 iota=63
[INFO] 
[INFO] --- maven-bundle-plugin:3.5.0:manifest (default) @ log4j-core-its ---
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 16 iota=63
[INFO] 
[INFO] --- maven-resources-plugin:3.0.2:testResources (default-testResources) @ 
log4j-core-its ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO] Copying 3 resources
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 16 iota=63
[INFO] 
[INFO] --- maven-compiler-plugin:3.7.0:testCompile (default-testCompile) @ 
log4j-core-its ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 18 source files to 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/target/test-classes>
[WARNING] No processor claimed any of these annotations: 
org.junit.AfterClass,org.junit.BeforeClass,org.junit.runner.RunWith,org.junit.runners.Parameterized.Parameters,org.junit.Test,org.junit.experimental.categories.Category,org.junit.Rule,org.junit.Ignore,org.junit.After,org.junit.ClassRule,org.junit.Before
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/core/ThreadedTest.java>:[96,12]
 [ClassCanBeStatic] Inner class is non-static but does not reference enclosing 
class
    (see https://errorprone.info/bugpattern/ClassCanBeStatic)
  Did you mean 'public static class StateSettingRunnable implements Runnable {'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/core/ThreadedTest.java>:[105,29]
 [ThreadPriorityCheck] Relying on the thread scheduler is discouraged; see 
Effective Java Item 72 (2nd edition) / 84 (3rd edition).
    (see https://errorprone.info/bugpattern/ThreadPriorityCheck)
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/core/appender/XmlCompleteFileAppenderTest.java>:[82,63]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'try (final BufferedReader reader = 
Files.newBufferedReader(logFile.toPath(), UTF_8)) {' or 'try (final 
BufferedReader reader = Files.newBufferedReader(logFile.toPath(), 
Charset.defaultCharset())) {'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/core/appender/XmlCompactFileAppenderTest.java>:[57,63]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'try (final BufferedReader reader = 
Files.newBufferedReader(file.toPath(), UTF_8)) {' or 'try (final BufferedReader 
reader = Files.newBufferedReader(file.toPath(), Charset.defaultCharset())) {'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/core/appender/SocketAppenderTest.java>:[195,13]
 [CatchAndPrintStackTrace] Logging or rethrowing exceptions should usually be 
preferred to catching and calling printStackTrace
    (see https://errorprone.info/bugpattern/CatchAndPrintStackTrace)
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/core/appender/SocketAppenderTest.java>:[321,21]
 [NonAtomicVolatileUpdate] This update of a volatile variable is non-atomic
    (see https://errorprone.info/bugpattern/NonAtomicVolatileUpdate)
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/core/appender/SocketAppenderTest.java>:[389,33]
 [NonAtomicVolatileUpdate] This update of a volatile variable is non-atomic
    (see https://errorprone.info/bugpattern/NonAtomicVolatileUpdate)
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/PerformanceRun.java>:[72,26]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'final Writer w = 
Files.newBufferedWriter(Paths.get("target/testwriter.log"), UTF_8, CREATE, 
APPEND);' or 'final Writer w = 
Files.newBufferedWriter(Paths.get("target/testwriter.log"), 
Charset.defaultCharset(), CREATE, APPEND);'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/PerformanceRun.java>:[127,27]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'buf.put(s.getBytes(UTF_8));' or 
'buf.put(s.getBytes(Charset.defaultCharset()));'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/PerformanceRun.java>:[133,26]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'return s.getBytes(UTF_8);' or 'return 
s.getBytes(Charset.defaultCharset());'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/PerformanceComparison.java>:[122,26]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'final Writer w = 
Files.newBufferedWriter(Paths.get("target/testwriter.log"), UTF_8, CREATE, 
APPEND);' or 'final Writer w = 
Files.newBufferedWriter(Paths.get("target/testwriter.log"), 
Charset.defaultCharset(), CREATE, APPEND);'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/PerformanceComparison.java>:[196,27]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'buf.put(s.getBytes(UTF_8));' or 
'buf.put(s.getBytes(Charset.defaultCharset()));'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/PerformanceComparison.java>:[202,26]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'return s.getBytes(UTF_8);' or 'return 
s.getBytes(Charset.defaultCharset());'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/core/appender/XmlRandomAccessFileAppenderTest.java>:[63,63]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'try (final BufferedReader reader = 
Files.newBufferedReader(file.toPath(), UTF_8)) {' or 'try (final BufferedReader 
reader = Files.newBufferedReader(file.toPath(), Charset.defaultCharset())) {'?
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 16 iota=63
[INFO] 
[INFO] --- maven-compiler-plugin:3.7.0:testCompile (test-compile) @ 
log4j-core-its ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 18 source files to 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/target/test-classes>
[WARNING] No processor claimed any of these annotations: 
org.junit.AfterClass,org.junit.BeforeClass,org.junit.runner.RunWith,org.junit.runners.Parameterized.Parameters,org.junit.Test,org.junit.experimental.categories.Category,org.junit.Rule,org.junit.Ignore,org.junit.After,org.junit.ClassRule,org.junit.Before
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/core/ThreadedTest.java>:[96,12]
 [ClassCanBeStatic] Inner class is non-static but does not reference enclosing 
class
    (see https://errorprone.info/bugpattern/ClassCanBeStatic)
  Did you mean 'public static class StateSettingRunnable implements Runnable {'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/core/ThreadedTest.java>:[105,29]
 [ThreadPriorityCheck] Relying on the thread scheduler is discouraged; see 
Effective Java Item 72 (2nd edition) / 84 (3rd edition).
    (see https://errorprone.info/bugpattern/ThreadPriorityCheck)
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/core/appender/XmlCompleteFileAppenderTest.java>:[82,63]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'try (final BufferedReader reader = 
Files.newBufferedReader(logFile.toPath(), UTF_8)) {' or 'try (final 
BufferedReader reader = Files.newBufferedReader(logFile.toPath(), 
Charset.defaultCharset())) {'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/core/appender/XmlCompactFileAppenderTest.java>:[57,63]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'try (final BufferedReader reader = 
Files.newBufferedReader(file.toPath(), UTF_8)) {' or 'try (final BufferedReader 
reader = Files.newBufferedReader(file.toPath(), Charset.defaultCharset())) {'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/core/appender/SocketAppenderTest.java>:[195,13]
 [CatchAndPrintStackTrace] Logging or rethrowing exceptions should usually be 
preferred to catching and calling printStackTrace
    (see https://errorprone.info/bugpattern/CatchAndPrintStackTrace)
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/core/appender/SocketAppenderTest.java>:[321,21]
 [NonAtomicVolatileUpdate] This update of a volatile variable is non-atomic
    (see https://errorprone.info/bugpattern/NonAtomicVolatileUpdate)
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/core/appender/SocketAppenderTest.java>:[389,33]
 [NonAtomicVolatileUpdate] This update of a volatile variable is non-atomic
    (see https://errorprone.info/bugpattern/NonAtomicVolatileUpdate)
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/PerformanceRun.java>:[72,26]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'final Writer w = 
Files.newBufferedWriter(Paths.get("target/testwriter.log"), UTF_8, CREATE, 
APPEND);' or 'final Writer w = 
Files.newBufferedWriter(Paths.get("target/testwriter.log"), 
Charset.defaultCharset(), CREATE, APPEND);'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/PerformanceRun.java>:[127,27]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'buf.put(s.getBytes(UTF_8));' or 
'buf.put(s.getBytes(Charset.defaultCharset()));'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/PerformanceRun.java>:[133,26]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'return s.getBytes(UTF_8);' or 'return 
s.getBytes(Charset.defaultCharset());'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/PerformanceComparison.java>:[122,26]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'final Writer w = 
Files.newBufferedWriter(Paths.get("target/testwriter.log"), UTF_8, CREATE, 
APPEND);' or 'final Writer w = 
Files.newBufferedWriter(Paths.get("target/testwriter.log"), 
Charset.defaultCharset(), CREATE, APPEND);'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/PerformanceComparison.java>:[196,27]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'buf.put(s.getBytes(UTF_8));' or 
'buf.put(s.getBytes(Charset.defaultCharset()));'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/PerformanceComparison.java>:[202,26]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'return s.getBytes(UTF_8);' or 'return 
s.getBytes(Charset.defaultCharset());'?
[WARNING] 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/src/test/java/org/apache/logging/log4j/core/appender/XmlRandomAccessFileAppenderTest.java>:[63,63]
 [DefaultCharset] Implicit use of the platform default charset, which can 
result in differing behaviour between JVM executions or incorrect behavior if 
the encoding of the data source doesn't match expectations.
    (see https://errorprone.info/bugpattern/DefaultCharset)
  Did you mean 'try (final BufferedReader reader = 
Files.newBufferedReader(file.toPath(), UTF_8)) {' or 'try (final BufferedReader 
reader = Files.newBufferedReader(file.toPath(), Charset.defaultCharset())) {'?
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 16 iota=63
[INFO] 
[INFO] --- maven-surefire-plugin:2.21.0:test (default-test) @ log4j-core-its ---
[INFO] Tests are skipped.
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 16 iota=63
[INFO] 
[INFO] --- maven-site-plugin:3.4:attach-descriptor (attach-descriptor) @ 
log4j-core-its ---
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 16 iota=63
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
Invalid object ID 16 iota=63
[INFO] 
[INFO] --- maven-jar-plugin:3.1.0:test-jar (test-jar) @ log4j-core-its ---
[INFO] Building jar: 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/target/log4j-core-its-3.0.0-SNAPSHOT-tests.jar>
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 16 iota=63
[INFO] 
[INFO] >>> maven-source-plugin:3.0.1:test-jar (test-jar) > generate-sources @ 
log4j-core-its >>>
[WARNING] Failed to getClass for 
org.apache.maven.plugins.source.TestSourceJarMojo
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 16 iota=63
[INFO] 
[INFO] <<< maven-source-plugin:3.0.1:test-jar (test-jar) < generate-sources @ 
log4j-core-its <<<
[INFO] 
[INFO] --- maven-source-plugin:3.0.1:test-jar (test-jar) @ log4j-core-its ---
[INFO] Building jar: 
<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core-its/target/log4j-core-its-3.0.0-SNAPSHOT-test-sources.jar>
[WARNING] Failed to notify spy hudson.maven.Maven3Builder$JenkinsEventSpy: 
java.util.concurrent.ExecutionException: Invalid object ID 16 iota=63
[INFO] 
[INFO] --- maven-failsafe-plugin:2.21.0:integration-test (default) @ 
log4j-core-its ---
[INFO] 
[INFO] -------------------------------------------------------
[INFO]  T E S T S
[INFO] -------------------------------------------------------
01:02:04,919 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Found 
resource [logback-perf.xml] at 
[jar:<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core/target/log4j-core-3.0.0-SNAPSHOT-tests.jar!/logback-perf.xml]>
01:02:04,934 |-INFO in 
ch.qos.logback.core.joran.spi.ConfigurationWatchList@49e5f737 - URL 
[jar:<https://builds.apache.org/job/Log4j%202%203.x/ws/log4j-core/target/log4j-core-3.0.0-SNAPSHOT-tests.jar!/logback-perf.xml]>
 is not of type file
01:02:04,963 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction 
- debug attribute not set
01:02:04,964 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - About 
to instantiate appender of type [ch.qos.logback.core.FileAppender]
01:02:04,972 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming 
appender as [TestLogfile]
01:02:04,981 |-INFO in ch.qos.logback.core.joran.action.NestedComplexPropertyIA 
- Assuming default type [ch.qos.logback.classic.encoder.PatternLayoutEncoder] 
for [encoder] property
01:02:04,982 |-WARN in 
ch.qos.logback.classic.encoder.PatternLayoutEncoder@5c671d7f - As of version 
1.2.0 "immediateFlush" property should be set within the enclosing Appender.
01:02:04,982 |-WARN in 
ch.qos.logback.classic.encoder.PatternLayoutEncoder@5c671d7f - Please move 
"immediateFlush" property into the enclosing appender.
01:02:05,010 |-WARN in 
ch.qos.logback.classic.encoder.PatternLayoutEncoder@5c671d7f - Setting the 
"immediateFlush" property of the enclosing appender to false
01:02:05,010 |-INFO in ch.qos.logback.core.FileAppender[TestLogfile] - File 
property is set to [target/testlogback.log]
01:02:05,011 |-INFO in ch.qos.logback.classic.joran.action.RootLoggerAction - 
Setting level of ROOT logger to DEBUG
01:02:05,011 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - 
Attaching appender named [TestLogfile] to Logger[ROOT]
01:02:05,012 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction 
- End of configuration.
01:02:05,013 |-INFO in ch.qos.logback.classic.joran.JoranConfigurator@757277dc 
- Registering current configuration as safe fallback point

[INFO] Running org.apache.logging.log4j.PerformanceComparison
Log4j    : 1705
Logback  : 1197
Log4j 2.0: 977
###############################################
Log4j    : 1272
Logback  : 1007
Log4j 2.0: 937
###############################################
Log4j    : 1130
Logback  : 1017
Log4j 2.0: 855
###############################################
Log4j    : 1088
Logback  : 966
Log4j 2.0: 859
###############################################
[WARNING] Tests run: 2, Failures: 0, Errors: 0, Skipped: 1, Time elapsed: 7.011 
s - in org.apache.logging.log4j.PerformanceComparison
[INFO] Running org.apache.logging.log4j.core.ThreadedTest
Counter = 100
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.269 s 
- in org.apache.logging.log4j.core.ThreadedTest
ERROR StatusLogger No Log4j 2 configuration file found. Using default 
configuration (logging only errors to the console), or user programmatically 
provided configurations. Set system property 'log4j2.debug' to show Log4j 2 
internal initialization logging. See 
https://logging.apache.org/log4j/2.x/manual/configuration.html for instructions 
on how to configure Log4j 2
[INFO] Running org.apache.logging.log4j.core.ThreadedPerfTest
Timer DebugDisabled stopped. Elapsed time: 0.075398771 seconds Average per 
iteration: 0.000000000 seconds
Timer DebugLogger stopped. Elapsed time: 0.046101134 seconds Average per 
iteration: 0.000000000 seconds
[INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.131 s 
- in org.apache.logging.log4j.core.ThreadedPerfTest
ERROR StatusLogger No Log4j 2 configuration file found. Using default 
configuration (logging only errors to the console), or user programmatically 
provided configurations. Set system property 'log4j2.debug' to show Log4j 2 
internal initialization logging. See 
https://logging.apache.org/log4j/2.x/manual/configuration.html for instructions 
on how to configure Log4j 2
Configuration was Default@5a955565
Timer Setup stopped. Elapsed time: 0.109663717 seconds Average per iteration: 
0.000000010 seconds
[INFO] Running org.apache.logging.log4j.core.SimplePerfTest
Timer DebugDisabled stopped. Elapsed time: 0.054885156 seconds Average per 
iteration: 0.000000005 seconds
Timer DebugLogger stopped. Elapsed time: 0.057487047 seconds Average per 
iteration: 0.000000005 seconds
Timer DebugDisabled stopped. Elapsed time: 0.041337884 seconds Average per 
iteration: 0.000000004 seconds
[INFO] Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.239 s 
- in org.apache.logging.log4j.core.SimplePerfTest
[INFO] Running org.apache.logging.log4j.FilterPerformanceComparison
Testing multithreading
Testing 1 threads, NON-EMPTY context
###############################################
Logback: 49
Log4j 2.0: 30
###############################################
Testing 2 threads, NON-EMPTY context
###############################################
Logback: 44
Log4j 2.0: 21
###############################################
Testing 5 threads, NON-EMPTY context
###############################################
Logback: 52
Log4j 2.0: 25
###############################################
Testing 10 threads, NON-EMPTY context
###############################################
Logback: 94
Log4j 2.0: 43
###############################################
Testing 20 threads, NON-EMPTY context
###############################################
Logback: 128
Log4j 2.0: 86
###############################################
Testing 50 threads, NON-EMPTY context
###############################################
Logback: 283
Log4j 2.0: 185
###############################################
Testing multithreading
Testing 1 threads, EMPTY context
###############################################
Logback: 27
Log4j 2.0: 20
###############################################
Testing 2 threads, EMPTY context
Build was aborted
channel stopped

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