java.sql.SQLException: Access denied for user 'root '@'localhost' (using password: YES) at com.mysql.jdbc.SQLError.createSQLException(SQLErro r.java:1075) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.ja va:3566) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.ja va:3498) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.ja va:919) at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java: 4004) at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:12 84) at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(Co nnectionImpl.java:2312) at com.mysql.jdbc.ConnectionImpl.createNewIO(Connecti onImpl.java:2122) at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImp l.java:774) at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connect ion.java:49) at sun.reflect.NativeConstructorAccessorImpl.newInsta nce0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInsta nce(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newI nstance(Unknown Source)

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    I get an error trying to connect to database:java.sql.SQLException: Access denied for

    javaprogrammingforums.com | 3 months ago
    java.sql.SQLException: Access denied for user 'root '@'localhost' (using password: YES) at com.mysql.jdbc.SQLError.createSQLException(SQLErro r.java:1075) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.ja va:3566) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.ja va:3498) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.ja va:919) at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java: 4004) at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:12 84) at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(Co nnectionImpl.java:2312) at com.mysql.jdbc.ConnectionImpl.createNewIO(Connecti onImpl.java:2122) at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImp l.java:774) at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connect ion.java:49) at sun.reflect.NativeConstructorAccessorImpl.newInsta nce0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInsta nce(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newI nstance(Unknown Source)
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    nabble.com | 11 months ago
    java.sql.SQLException: org.h2.Driver at >> > >> > org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:254) at >> > >> > org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182) at >> > >> > org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701) at >> > >> > org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635) at >> > org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:486) at >> > >> > org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:144) at >> > >> > org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:116) at >> > >> > org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:103) at >> > >> > org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:127) at >> > >> > org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy.afterPropertiesSet(LazyConnectionDataSourceProxy.java:162) at >> > >> > org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy.<init>(LazyConnectionDataSourceProxy.java:106) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native >> > Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown >> > Source) at >> > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown >> > Source)
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    java.sql.SQLException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
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    Stack Overflow | 4 years ago | Nicholas Pickering
    java.sql.SQLException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
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    Stack Overflow | 3 years ago | Philip007
    java.sql.SQLException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

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    Root Cause Analysis

    1. java.sql.SQLException

      Access denied for user 'root '@'localhost' (using password: YES) at com.mysql.jdbc.SQLError.createSQLException(SQLErro r.java:1075) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.ja va:3566) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.ja va:3498) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.ja va:919) at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java: 4004) at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:12 84) at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(Co nnectionImpl.java:2312) at com.mysql.jdbc.ConnectionImpl.createNewIO(Connecti onImpl.java:2122) at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImp l.java:774) at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connect ion.java:49) at sun.reflect.NativeConstructorAccessorImpl.newInsta nce0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInsta nce(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newI nstance(Unknown Source)

      at java.lang.reflect.Constructor.newInstance()
    2. Java RT
      Constructor.newInstance
      1. java.lang.reflect.Constructor.newInstance(Unknown Source)
      1 frame