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28.4.2 Connector/J Installation »
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28.4.1.1. Java Versions Supported

MySQL Connector/J supports Java-2 JVMs, including:

  • JDK 1.2.x (only for Connector/J 3.1.x or earlier)

  • JDK 1.3.x

  • JDK 1.4.x

  • JDK 1.5.x

  • JDK 1.6.x

If you are building Connector/J from source using the source distribution (see Section 28.4.2.4, “Installing from the Development Source Tree”) then you must use JDK 1.4.x or newer to compiler the Connector package. For Connector/J 5.1 you must use JDK-1.6.x.

MySQL Connector/J does not support JDK-1.1.x or JDK-1.0.x.

Because of the implementation of java.sql.Savepoint, Connector/J 3.1.0 and newer will not run on JDKs older than 1.4 unless the class verifier is turned off (by setting the -Xverify:none option to the Java runtime). This is because the class verifier will try to load the class definition for java.sql.Savepoint even though it is not accessed by the driver unless you actually use savepoint functionality.

Caching functionality provided by Connector/J 3.1.0 or newer is also not available on JVMs older than 1.4.x, as it relies on java.util.LinkedHashMap which was first available in JDK-1.4.0.