Blazej created LOG4J2-2129:
------------------------------
Summary: Log4j2 throws NoClassDefFoundError in Java 9
Key: LOG4J2-2129
URL: https://issues.apache.org/jira/browse/LOG4J2-2129
Project: Log4j 2
Issue Type: Bug
Components: API
Affects Versions: 2.10.0, 2.10.1
Environment: Java 9
Reporter: Blazej
When I execute a sample project (https://github.com/bbucko/log4j2-jpms-sample)
in Java 9 a following exception is thrown:
{code}
Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize
class org.apache.logging.log4j.util.PropertiesUtil
at
org.apache.logging.log4j/org.apache.logging.log4j.status.StatusLogger.<clinit>(StatusLogger.java:71)
at
org.apache.logging.log4j/org.apache.logging.log4j.LogManager.<clinit>(LogManager.java:60)
{code}
Exception is a little bit misleading because it seems that true root cause can
be found here:
{code}
java.util.ServiceConfigurationError:
org.apache.logging.log4j.util.PropertySource: module org.apache.logging.log4j
does not declare `uses`
at java.base/java.util.ServiceLoader.fail(ServiceLoader.java:588)
at java.base/java.util.ServiceLoader.checkCaller(ServiceLoader.java:574)
at java.base/java.util.ServiceLoader.<init>(ServiceLoader.java:503)
at java.base/java.util.ServiceLoader.load(ServiceLoader.java:1684)
at
org.apache.logging.log4j/org.apache.logging.log4j.util.PropertiesUtil$Environment.<init>(PropertiesUtil.java:319)
at
org.apache.logging.log4j/org.apache.logging.log4j.util.PropertiesUtil$Environment.<init>(PropertiesUtil.java:310)
at
org.apache.logging.log4j/org.apache.logging.log4j.util.PropertiesUtil.<init>(PropertiesUtil.java:69)
at
org.apache.logging.log4j/org.apache.logging.log4j.util.PropertiesUtil.<clinit>(PropertiesUtil.java:49)
at
org.apache.logging.log4j/org.apache.logging.log4j.util.Constants.<clinit>(Constants.java:30)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:375)
at
org.apache.logging.log4j/org.apache.logging.log4j.spi.AbstractLogger.createClassForProperty(AbstractLogger.java:198)
at
org.apache.logging.log4j/org.apache.logging.log4j.spi.AbstractLogger.<clinit>(AbstractLogger.java:88)
at
org.apache.logging.log4j/org.apache.logging.log4j.LogManager.<clinit>(LogManager.java:60)
{code}
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