Journal's Facebook pageJINDY: a Java library to support invokedynamic
- University of Oviedo, Computer Science Department
Calvo Sotelo s/n, 33007, Oviedo, Spain
{condepatricia, ortin}@uniovi.es
Abstract
Java 7 has included the new invokedynamic opcode in the Java virtual machine. This new instruction allows the user to define method linkage at runtime. Once the link is established, the virtual machine performs its common optimizations, providing better runtime performance than reflection. However, this feature has not been offered at the abstraction level of the Java programming language. Since the functionality of the new opcode is not provided as a library, the existing languages in the Java platform can only use it at the assembly level. For this reason, we have developed the JINDY library that offers invokedynamic to any programming language in the Java platform. JINDY supports three modes of use, establishing a trade-off between runtime performance and flexibility. A runtime performance and memory consumption evaluation is presented. We analyze the efficiency of JINDY compared to reflection, the MethodHandle class in Java 7 and the Dynalink library. The memory and performance costs compared to the invokedynamic opcode are also measured.
Key words
invokedynamic, Java Virtual Machine, dynamically generated classes, reflection, runtime performance
Digital Object Identifier (DOI)
https://doi.org/10.2298/CSIS130129018C
Publication information
Volume 11, Issue 1 (January 2014)
Year of Publication: 2014
ISSN: 2406-1018 (Online)
Publisher: ComSIS Consortium
Full text
Available in PDF
Portable Document Format
How to cite
Conde, P., Ortin, F.: JINDY: a Java library to support invokedynamic. Computer Science and Information Systems, Vol. 11, No. 1, 47-68. (2014), https://doi.org/10.2298/CSIS130129018C
