Integrating Java 8 Streams with The Real-Time Specification for Java

H. Mei; I. Gray; A. J. Wellings

doi:10.1145/2822304.2822314

Integrating Java 8 Streams with The Real-Time Specification for Java

H. Mei, I. Gray, A. J. Wellings

Computer Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The paper investigates the use of the Java 8 stream processing facilities from within the context of the Real-Time Specification for Java. Java 8 stream processing uses the Java 7 Fork/Join framework. We demonstrate that it is not possible, with the current framework, to supply a pool of real-time worker threads with which to perform stream evaluation. We show what changes would need to be made to the framework for it to be used in a real-time context. Our evaluation shows that without such changes, use of the current Java 8 stream processing faculties by real-time threads can result in significant priority inversions. We also consider what hooks the RTSJ would need to provide that would allow real-time Fork/Join pools to be generated with- out changes to the source code.

Original language	English
Title of host publication	JTRES '15
Subtitle of host publication	Proceedings of the 13th International Workshop on Java Technologies for Real-time and Embedded Systems
Publisher	ACM
ISBN (Print)	978-1-4503-3644-4
DOIs	https://doi.org/10.1145/2822304.2822314
Publication status	Published - 2015

Access to Document

10.1145/2822304.2822314

Cite this

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title = "Integrating Java 8 Streams with The Real-Time Specification for Java",

abstract = "The paper investigates the use of the Java 8 stream processing facilities from within the context of the Real-Time Specification for Java. Java 8 stream processing uses the Java 7 Fork/Join framework. We demonstrate that it is not possible, with the current framework, to supply a pool of real-time worker threads with which to perform stream evaluation. We show what changes would need to be made to the framework for it to be used in a real-time context. Our evaluation shows that without such changes, use of the current Java 8 stream processing faculties by real-time threads can result in significant priority inversions. We also consider what hooks the RTSJ would need to provide that would allow real-time Fork/Join pools to be generated with- out changes to the source code.",

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N2 - The paper investigates the use of the Java 8 stream processing facilities from within the context of the Real-Time Specification for Java. Java 8 stream processing uses the Java 7 Fork/Join framework. We demonstrate that it is not possible, with the current framework, to supply a pool of real-time worker threads with which to perform stream evaluation. We show what changes would need to be made to the framework for it to be used in a real-time context. Our evaluation shows that without such changes, use of the current Java 8 stream processing faculties by real-time threads can result in significant priority inversions. We also consider what hooks the RTSJ would need to provide that would allow real-time Fork/Join pools to be generated with- out changes to the source code.

AB - The paper investigates the use of the Java 8 stream processing facilities from within the context of the Real-Time Specification for Java. Java 8 stream processing uses the Java 7 Fork/Join framework. We demonstrate that it is not possible, with the current framework, to supply a pool of real-time worker threads with which to perform stream evaluation. We show what changes would need to be made to the framework for it to be used in a real-time context. Our evaluation shows that without such changes, use of the current Java 8 stream processing faculties by real-time threads can result in significant priority inversions. We also consider what hooks the RTSJ would need to provide that would allow real-time Fork/Join pools to be generated with- out changes to the source code.

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ER -