Na Aula 4 após "descomentar" as linhas referentes ao log4j um novo erro acontece. Em outro post do fórum um instrutor disse que o projeto está com problemas e que deveríamos listar outra versão no Spring no arquivo pom.xml
<properties>
<spring.version>4.1.0.RELEASE</spring.version>
</properties>Segue erro no console.
ADVERTÊNCIA: The web application [projeto-jpa-2] registered the JDBC driver [com.mysql.cj.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
jun 24, 2020 3:17:46 PM org.apache.catalina.loader.WebappClassLoaderBase clearReferencesThreads
ADVERTÊNCIA: The web application [projeto-jpa-2] appears to have started a thread named [mysql-cj-abandoned-connection-cleanup] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
java.lang.Object.wait(Native Method)
java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:144)
com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:85)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
java.lang.Thread.run(Thread.java:748)
jun 24, 2020 3:17:46 PM org.apache.coyote.AbstractProtocol start
INFORMAÇÕES: Starting ProtocolHandler ["http-nio-8080"]
jun 24, 2020 3:17:46 PM org.apache.catalina.startup.Catalina start
INFORMAÇÕES: Server startup in [19.510] milliseconds
jun 24, 2020 3:17:51 PM org.apache.catalina.loader.WebappClassLoaderBase checkStateForResourceLoading
INFORMAÇÕES: Illegal access: this web application instance has been stopped already. Could not load []. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load []. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1385)
at org.apache.catalina.loader.WebappClassLoaderBase.getResource(WebappClassLoaderBase.java:1038)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.checkThreadContextClassLoader(AbandonedConnectionCleanupThread.java:117)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:84)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Encontrei um erro no arquivo "log4j.xml" na linha abaixo, mas não sei como resolve-lo.
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
