milleruntime opened a new issue #1978:
URL: https://github.com/apache/accumulo/issues/1978
**Describe the bug**
DefaultContextClassLoaderFactory fails to load when configured for the
"general.context.class.loader.factory" property.
**Versions (OS, Maven, Java, and others, as appropriate):**
- Affected version(s) of this project: 2.1
**To Reproduce**
Steps to reproduce the behavior (or a link to an example repository that
reproduces the problem):
1. Configure the property:
general.context.class.loader.factory=org.apache.accumulo.core.classloader.DefaultContextClassLoaderFactory
2. Start up accumulo
3. Tablet server will start up then die with the following error
<pre>
2021-03-26T17:48:14,259 [classloader.ClassLoaderUtil] INFO : Creating
org.apache.accumulo.core.spi.common.ContextClassLoaderFactory:
org.apache.accumulo.core.classloader.DefaultContextClassLoaderFactory
2021-03-26T17:48:14,259 [start.Main] ERROR: Thread 'tserver' died.
java.lang.IllegalStateException: Unable to load and initialize class:
org.apache.accumulo.core.classloader.DefaultContextClassLoaderFactory
at
org.apache.accumulo.core.classloader.ClassLoaderUtil.initContextFactory(ClassLoaderUtil.java:55)
~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
at
org.apache.accumulo.server.AbstractServer.<init>(AbstractServer.java:53)
~[accumulo-server-base-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
at
org.apache.accumulo.tserver.TabletServer.<init>(TabletServer.java:239)
~[accumulo-tserver-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
at
org.apache.accumulo.tserver.TabletServer.main(TabletServer.java:233)
~[accumulo-tserver-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
at
org.apache.accumulo.tserver.TServerExecutable.execute(TServerExecutable.java:45)
~[accumulo-tserver-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
at
org.apache.accumulo.start.Main.lambda$execKeyword$0(Main.java:126)
~[accumulo-start-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
at java.lang.Thread.run(Thread.java:834) [?:?]
Caused by: java.lang.NoSuchMethodException:
org.apache.accumulo.core.classloader.DefaultContextClassLoaderFactory.<init>()
at java.lang.Class.getConstructor0(Class.java:3349) ~[?:?]
at java.lang.Class.getDeclaredConstructor(Class.java:2553) ~[?:?]
at
org.apache.accumulo.core.classloader.ClassLoaderUtil.initContextFactory(ClassLoaderUtil.java:53)
~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
</pre>
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