Yes. The unit tests for core only exercise Java 8 as the build happens with 
Java 8.

Ralph



> On Jan 17, 2022, at 12:48 PM, Gary Gregory <garydgreg...@gmail.com> wrote:
> 
> How does this stack trace happen when my full local builds and github
> builds are green? Are we missing a test for this feature?
> 
> Gary
> 
> 
> On Mon, Jan 17, 2022, 13:51 Carter Kozak <cko...@ckozak.net> wrote:
> 
>> Please revert, this breaks stacklocatorutil on java 9+ with the following:
>> 
>> Caused by: java.lang.NoSuchMethodError: 'java.util.Deque
>> org.apache.logging.log4j.util.StackLocator.getCurrentStackTrace()'
>> at
>> org.apache.logging.log4j.util.StackLocatorUtil.getCurrentStackTrace(StackLocatorUtil.java:116)
>> at
>> org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:111)
>> at
>> org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:96)
>> at
>> org.apache.logging.log4j.core.impl.MutableLogEvent.getThrownProxy(MutableLogEvent.java:347)
>> at
>> org.apache.logging.log4j.core.impl.Log4jLogEvent$LogEventProxy.<init>(Log4jLogEvent.java:970)
>> at
>> org.apache.logging.log4j.core.impl.Log4jLogEvent.serialize(Log4jLogEvent.java:745)
>> at
>> org.apache.logging.log4j.core.impl.MutableLogEvent.createMemento(MutableLogEvent.java:472)
>> at
>> org.apache.logging.log4j.test.appender.ListAppender.append(ListAppender.java:122)
>> at
>> org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:161)
>> ... 50 more
>> 
>> -ck
>> 
>> On Sat, Jan 8, 2022, at 11:08, ggreg...@apache.org wrote:
>> 
>> This is an automated email from the ASF dual-hosted git repository.
>> 
>> ggregory pushed a change to branch release-2.x
>> in repository https://gitbox.apache.org/repos/asf/logging-log4j2.git.
>> 
>> 
>>    from ff33bbc  Add StackLocatorUtil.getCallerClassLoader(int) for the
>> 1.2 bridge.
>>     new 97f3153  Replace internal use of synchronized java.util.Stack
>> with unsynchronized java.util.Deque. These objects are not shared between
>> threads.
>>     new 97f9201  Replace internal use of synchronized java.util.Stack
>> with unsynchronized java.util.Deque. These objects are not shared between
>> threads.
>> 
>> The 2 revisions listed above as "new" are entirely new to this
>> repository and will be described in separate emails.  The revisions
>> listed as "add" were already present in the repository and have only
>> been added to this reference.
>> 
>> 
>> Summary of changes:
>> log4j-api/revapi.json                                        |  1 +
>> .../log4j/util/PrivateSecurityManagerStackTraceUtil.java     |  8 ++++----
>> .../java/org/apache/logging/log4j/util/StackLocator.java     |  7 ++++---
>> .../java/org/apache/logging/log4j/util/StackLocatorUtil.java |  4 ++--
>> .../org/apache/logging/log4j/util/StackLocatorUtilTest.java  | 12
>> ++++++++----
>> .../org/apache/logging/log4j/core/impl/ThrowableProxy.java   |  6 +++---
>> .../apache/logging/log4j/core/impl/ThrowableProxyHelper.java | 12
>> ++++++------
>> .../apache/logging/log4j/core/impl/ThrowableProxyTest.java   |  7 ++++---
>> 8 files changed, 32 insertions(+), 25 deletions(-)
>> 
>> 
>> 

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