请让我知道与jdk 1.7兼容的任何MySQL版本

Question

I Installed JDK 1.7 and tried to connect to different MySQL database and Connector/J versions. But every time, I'm getting the following error when loading the driver:

Exception in thread "main" java.lang.ExceptionInInitializerError
 at java.lang.Class.forName0(Native Method)
 at java.lang.Class.forName(Class.java:186)
 at jdbc.JDBC.main(JDBC.java:24)
Caused by: java.lang.RuntimeException: Uncompilable source code - com.mysql.jdbc.NonRegisteringDriver is not abstract and does not override abstract method getParentLogger() in java.sql.Driver
 at com.mysql.jdbc.NonRegisteringDriver.<clinit>(NonRegisteringDriver.java:69)
 ... 3 more

Which MySQL driver version is compatible with JDK 1.7?

Answer 1

The exception message says this:

"Caused by: java.lang.RuntimeException: Uncompilable source code - com.mysql.jdbc.NonRegisteringDriver is not abstract and does not override abstract method getParentLogger() in java.sql.Driver"

I think that the problem is that you (or someone else) have/has attempted to build the JDBC driver from source code and not noticed that there were compilation errors, and assembled the resulting broken ".class" files into a JAR file.

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The standard Connector/J driver JAR files from the MySQL website should work with Java 7. Certainly, I've never experienced any problems like this with them.

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I'm more inclined to believe the evidence that I can see in the Exception message than your assurance that everything is "perfect":

• Are you sure that you are using a Connector/J JAR file that you downloaded from the MySQL Website?

• Did you check that MD5 checksum to make sure that you got the real thing?

• If you built from source, did you read the stuff in the docs/readme.txt about the JRE versions required to build correctly?

• Do you have some other (broken) copy of the drivers on your application's classpath?

Answer 2

"Caused by: java.lang.RuntimeException: Uncompilable source code -
com.mysql.jdbc.NonRegisteringDriver is not abstract and does not override
abstract method getParentLogger() in java.sql.Driver"

The method getParentLogger() was introduced to the Driver interface in Java 1.7.

Find a MySQL driver that supports Java 1.7 or switch back to Java 1.6.

Edit: Additional info:

I tested JDK 1.7.10 and a driver Jar named: mysql-connector-java-5.1.6-bin.jar

Using the following code:

public static void main(String[] args) throws ClassNotFoundException,
        InstantiationException, IllegalAccessException, SQLException {
    System.out.println("Java version: "
            + System.getProperty("java.version"));
    Driver driver = (Driver) Class.forName("com.mysql.jdbc.Driver")
            .newInstance();
    System.out.println("JDBC driver: " + driver.getMajorVersion() + "."
            + driver.getMinorVersion());
    Connection connection = DriverManager.getConnection(
            "jdbc:mysql://localhost:3306/DBNAME", "user", "pass");
    System.out.println("Connection: " + connection.getClass().getName());
}

It gives the following output:

Java version: 1.7.0_10
JDBC driver: 5.1
Connection: com.mysql.jdbc.JDBC4Connection

Possibly you have also a problem with the JDK/JRE Installation. When installing the JDK, it wants to update SQL drivers.
You might give it a try to uninstall and re-install the JDK.