Michael Vorburger created FINERACT-890:
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Summary: Custom slf4j integrated logger for the (optional!) MySQL
JDBC driver support in Fineract
Key: FINERACT-890
URL: https://issues.apache.org/jira/browse/FINERACT-890
Project: Apache Fineract
Issue Type: Improvement
Reporter: Michael Vorburger
While working on FINERACT-762, I've stumbled upon:
{code}Caused by: com.zaxxer.hikari.pool.HikariPool$PoolInitializationException:
Failed to initialize pool: Unable to load class for logger
'com.mysql.jdbc.log.StandardLogger'
at
com.zaxxer.hikari.pool.HikariPool.throwPoolInitializationException(HikariPool.java:589)
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:575)
at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115)
at com.zaxxer.hikari.HikariDataSource.<init>(HikariDataSource.java:81)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at
org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:203)
... 161 more
Caused by: java.sql.SQLException: Unable to load class for logger
'com.mysql.jdbc.log.StandardLogger'
at
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129)
at
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
at
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89)
at
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63)
at
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:73)
at
com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:85)
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:452)
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
at
com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:197)
at
com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138)
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:354)
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:202)
at
com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:473)
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:554)
... 168 more
Caused by: com.mysql.cj.exceptions.WrongArgumentException: Unable to load class
for logger 'com.mysql.jdbc.log.StandardLogger'
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at
com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
at
com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
at com.mysql.cj.log.LogFactory.getLogger(LogFactory.java:77)
at com.mysql.cj.CoreSession.<init>(CoreSession.java:95)
at com.mysql.cj.NativeSession.<init>(NativeSession.java:131)
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:402)
... 175 more
Caused by: java.lang.ClassNotFoundException:
com.mysql.cj.log.com.mysql.jdbc.log.StandardLogger
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at com.mysql.cj.log.LogFactory.getLogger(LogFactory.java:70)
... 178 more{code}
This seems to be due to us setting the Hikari DataSource logger property to
com.mysql.jdbc.log.StandardLogger, in both
org.apache.fineract.infrastructure.core.service.TomcatJdbcDataSourcePerTenantService
and META-INF/spring/hikariDataSource.xml.
That classname seems to be wrong (outdated?), at least for the latest
mysql-connector-java version 8.0.19.
According to
https://dev.mysql.com/doc/connector-j/8.0/en/connector-j-reference-configuration-properties.html,
that's the default anyway, so I'll just comment it out, for now.
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