Connected Limited Device Configuration (CLDC) is a specification of a framework for Java ME applications describing the basic set of libraries and virtual-machine features that must be present in an implementation.

Typical requirements

Connected Limited Device Configuration (CLDC) is designed for devices that have limited processing power, memory, and graphical capability. Devices typically have the following features:

16-bit or 32-bit CPU with a clock speed of 16 MHz or higher

At least 160 KB ROM allocated for the CLDC libraries and virtual machine

At least 8 KB total RAM available to the Java platform

Low power consumption, often operating on battery power

Connectivity to some kind of network, often with a wireless, intermittent connection and limited bandwidth

Connected Limited Device Configuration (CLDC) 1.0 and 1.1

The Serializable interface is not supported.

Parts of the reflection capabilities of the Java standard edition:

The java.lang.reflect package and any of its classes not supported.

Methods on java.lang.Class which obtain Constructors or Methods or Fields.

No finalization. CLDC does not include the Object.finalize() method.

Limited error handling. Non-runtime errors are handled by terminating the application or resetting the device.

No user-defined class loaders

No thread groups or daemon threads.