July 2019 - slf4j-dev - mailman3.qos.ch

Fwd: investigation on the diffusion of innovation along with java releases
by Fernando Petrulio 12 Aug '19

12 Aug '19

Dear Developers, we are members of the ZEST research group (Zurich Empirical Software Engineering Team) based at the University of Zurich and the Delft University of Technology. We are conducting an investigation on the diffusion of innovations and we focus on the adoption of new language features. Our research is focused on how API producers adapt their interfaces to introduce support for Java 8’s lambdas. During the course of our investigation, we manually inspected SLF4J’s source code and documentation to understand whether Java’s lambdas have widespread adoption. We would like to have your feedback on our findings. Our study focuses primarily on Functional Interfaces and Lambda Expressions as these new features were introduced by the Java language and adopted the Java JDK API, as they reduce implementation complexity, improve readability, offer performance benefits and improve security contextualization. Our analysis showed that though SLF4J 2.0 did not explicitly introduce support for functional interfaces (e.g. by using the @FunctionalInterface annotation). We noticed that the API does provide compatibility with Java 8+ features, including lambda expressions (since the API’s build platform is now on JDK 1.8). We would like to better understand as to why no major change was necessitated to facilitate the usage of lambda expressions with the API. In most cases, developers choose to move to new releases to satisfy particular dependency requirements, to take advantage of new Java features (like streams and functional interfaces in the case of Java 8), or just to standardize their implementation to align the API with the Java JDK API. Can you provide us with more information about this? How did you and your team tackle the choice to change the version of Java supported? Which factors did you take into account when doing this? Are there any documented sources (e.g. Jira tickets, or issue tracker issues) about that discussion you can provide us with? Why were no explicit changes made to the interface to support lambda expressions? Are there any future plans in place to make larger changes to the API such that lambda expressions would be supported? We thank you for taking the time to answer our questions. If you would like to be posted about the results of this study, please let us know! Kind Regards, Fernando Petrulio. -- Fernando Petrulio Ph.D. Student - University of Zurich UZH Department of Informatics fpetrulio(a)ifi.uzh.ch

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[qos-ch/slf4j] b05e7f: allow SubstitutableLoggerTest to pass
by Ceki Gulcu 28 Jul '19

28 Jul '19

Branch: refs/heads/master Home: https://github.com/qos-ch/slf4j Commit: b05e7fe90da3583d343d26cea424dcb0a6cd640a https://github.com/qos-ch/slf4j/commit/b05e7fe90da3583d343d26cea424dcb0a6cd… Author: Ceki Gulcu <ceki(a)qos.ch> Date: 2019-07-28 (Sun, 28 Jul 2019) Changed paths: M slf4j-api/src/test/java/org/slf4j/helpers/SubstitutableLoggerTest.java Log Message: ----------- allow SubstitutableLoggerTest to pass

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[qos-ch/slf4j] a5eb9c: bump version
by Ceki Gulcu 28 Jul '19

28 Jul '19

Branch: refs/heads/master Home: https://github.com/qos-ch/slf4j Commit: a5eb9ce00ca119da55b3a05c986f8bfe795608b0 https://github.com/qos-ch/slf4j/commit/a5eb9ce00ca119da55b3a05c986f8bfe7956… Author: Ceki Gulcu <ceki(a)qos.ch> Date: 2019-07-28 (Sun, 28 Jul 2019) Changed paths: M integration/pom.xml M jcl-over-slf4j/pom.xml M jul-to-slf4j/pom.xml M log4j-over-slf4j/pom.xml M osgi-over-slf4j/pom.xml M pom.xml M slf4j-api/pom.xml M slf4j-ext/pom.xml M slf4j-jdk14/pom.xml M slf4j-log4j12/pom.xml M slf4j-nop/pom.xml M slf4j-simple/pom.xml M slf4j-site/pom.xml Log Message: ----------- bump version

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[qos-ch/slf4j] fde8ca: refactor EventBuilder construction
by Ceki Gulcu 28 Jul '19

28 Jul '19

Branch: refs/heads/master Home: https://github.com/qos-ch/slf4j Commit: fde8ca480c86bd01dcca4d492e0fc5db56eb2619 https://github.com/qos-ch/slf4j/commit/fde8ca480c86bd01dcca4d492e0fc5db56eb… Author: Ceki Gulcu <ceki(a)qos.ch> Date: 2019-07-28 (Sun, 28 Jul 2019) Changed paths: M slf4j-api/src/main/java/org/slf4j/Logger.java M slf4j-site/src/site/pages/manual.html Log Message: ----------- refactor EventBuilder construction

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[qos-ch/slf4j] 83b88c: fix JavaDoc typo
by Ceki Gulcu 26 Jul '19

26 Jul '19

Branch: refs/heads/master Home: https://github.com/qos-ch/slf4j Commit: 83b88c502a322742f855bbb6e9d2f856dbd0d02d https://github.com/qos-ch/slf4j/commit/83b88c502a322742f855bbb6e9d2f856dbd0… Author: Artsiom Chapialiou <achapialiou(a)gmail.com> Date: 2019-07-25 (Thu, 25 Jul 2019) Changed paths: M slf4j-api/src/main/java/org/slf4j/ILoggerFactory.java Log Message: ----------- fix JavaDoc typo Commit: 7533fde7657e9577cd30bcf82584fb37207a99d4 https://github.com/qos-ch/slf4j/commit/7533fde7657e9577cd30bcf82584fb37207a… Author: Ceki Gulcu <ceki(a)qos.ch> Date: 2019-07-26 (Fri, 26 Jul 2019) Changed paths: M slf4j-api/src/main/java/org/slf4j/ILoggerFactory.java Log Message: ----------- Merge pull request #210 from ArtsiomCh/patch-1 fix JavaDoc typo Compare: https://github.com/qos-ch/slf4j/compare/a5357c8d49aa...7533fde7657e

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JDK 13 enters Rampdown Phase Two
by Rory O'Donnell 22 Jul '19

22 Jul '19

Hi Ceki, Any issues to report on JDK 13 , would like to hear the status as we are now in rampdown phase 2 ? **OpenJDK builds *- JDK 13 Early Access build 30 **is now available **at : - jdk.java.net/13/* * Per the JDK 13 schedule [1], we are now in Rampdown Phase Two. o For more details , see Mark Reinhold's email to jdk-dev mailing list [2] o The overall feature set is frozen, no further JEPs will be targeted to this release. o Per the JDK Release Process [3] we now turn our focus to P1 and P2 bugs. * I want to draw your attention to some noteable changes in previous builds of JDK 13. These changes are important for those that develop/maintain their own socket implementation (java.net.SocketImpl) or use the setSocketImplFactory or setSocketFactory APIs to change the system-wide socket implementation: o http://jdk.java.net/13/release-notes#JDK-8224477 - delivered in build 23 o http://jdk.java.net/13/release-notes#JDK-8216978 - delivered in build 20 o http://jdk.java.net/13/release-notes#JDK-8220493 - delivered in build 13 **OpenJDK builds *- JDK 14 Early Access build 6 is **now available **at : - jdk.java.net/14/* * These early-access, open-source builds are provided under the o GNU General Public License, version 2, with the Classpath Exception <http://openjdk.java.net/legal/gplv2+ce.html>. * Changes of interest since last email o 8225239: Refactor NetworkInterface lookups o 8226409: Enable argument profiling for sun.misc.Unsafe.put*/get* * JEP targeted to JDK 14: o JEP352: Non-Volatile Mapped * Bug fixes reported by Open Source Projects : o JDK-8227080 - fixed in b5 -reported by Eclipse Jetty The Java Crypto Roadmap <https://www.java.com/en/jre-jdk-cryptoroadmap.html> has been updated : * Released - 16-July-2019 - Release Affected JDK 7u231 - Disabled Kerberos DES encryption by default * Targeted Date - 2020 - Targeted Release - JDK 8 - Transport Layer Security (TLS) 1.3 Rgds,Rory [1] http://openjdk.java.net/projects/jdk/13/#Schedule [2] https://mail.openjdk.java.net/pipermail/jdk-dev/2019-July/003170.html -- Rgds, Rory O'Donnell Quality Engineering Manager Oracle EMEA, Dublin, Ireland

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JDK 13 , JDK 14 & Valhalla Early Access builds are available.
by Rory O'Donnell 08 Jul '19

08 Jul '19

Hi Ceki, **OpenJDK* 13 Early Access build **28 is now available **at : - jdk.java.net/13/* * These early-access, open-source builds are provided under the GNU General Public License, version 2, with the Classpath Exception <http://openjdk.java.net/legal/gplv2+ce.html>. * Changes in this build 28 [1] *Reminder of a change in b24 - A jrt URI can only encode paths to files in /modules tree **(JDK-8224946 <https://bugs.openjdk.java.net/browse/JDK-8224946>)* A |jrt| URL is a hierarchical URI with syntax |jrt:/[$MODULE[/$PATH]]|. When using the |jrt| file system, a |java.net.URI| object can be created with the |java.nio.file.Path::toUri| method to encode a normalized path to a file in the |/modules| tree. A |jrt| URL cannot encode a path to a file in the |/packages| tree. The |jrt| file system provider has changed in this release so that |toUri| fails with |IOError| when it is not possible to encode the file path as a jrt URI. *This change may impact tools have been making use of URLs that are not compliant with the syntax. Tools with paths to files in **|/packages|**can use the **|toRealPath()|**method to obtain the real path (in **|/modules|**) before attempting to convert the file path to a URI.* *OpenJDK 14 **Early Access build 4 **is now available **at : - jdk.java.net/14/* * These early-access, open-source builds are provided under the GNU General Public License, version 2, with the Classpath Exception <http://openjdk.java.net/legal/gplv2+ce.html>. * Changes in this build [2] *Project Valhalla "L-World Inline Types" Early-Access Builds* * Build jdk-14-valhalla+1-8 * These early-access builds are provided under the GNU General Public License, version 2, with the Classpath Exception <http://openjdk.java.net/legal/gplv2+ce.html>. * Please send feedback via e-mail to valhalla-dev(a)openjdk.java.net <mailto:valhalla-dev@openjdk.java.net>. To send e-mail to this address you must first subscribe to the mailing list. *The Skara tooling is now open source *[3] we are happy to announce that the tooling for project Skara is now open source and available at * https://github.com/openjdk/skara <https://github.com/openjdk/skara.> The Skara tooling includes both server-side tools (so called "bots") as well as several command-line tools ** If you have any questions, feedback etc. send them to Skara mailing list [4] Rgds, Rory [1] JDK 13 - Changes in b28 here <http://hg.openjdk.java.net/jdk/jdk/log?rev=reverse%28%22jdk-13%2B27%22%3A%3…> [2] JDK 14 - Changes in b4 here <http://hg.openjdk.java.net/jdk/jdk/log?rev=reverse%28%22jdk-14%2B3%22%3A%3A…> [3] https://mail.openjdk.java.net/pipermail/skara-dev/2019-June/000047.html [4] https://mail.openjdk.java.net/mailman/listinfo/skara-dev -- Rgds, Rory O'Donnell Quality Engineering Manager Oracle EMEA, Dublin, Ireland

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[JIRA] (SLF4J-462) %caller broken with lamdas, etc. other in slfj4 2
by QOS.CH (JIRA) 01 Jul '19

01 Jul '19

[ https://jira.qos.ch/browse/SLF4J-462?page=com.atlassian.jira.plugin.system.… ] Dean Hiller commented on SLF4J-462: ----------------------------------- oops on opening this. opened https://jira.qos.ch/browse/LOGBACK-1473 which is the correct project. > %caller broken with lamdas, etc. other in slfj4 2 > ------------------------------------------------- > > Key: SLF4J-462 > URL: https://jira.qos.ch/browse/SLF4J-462 > Project: SLF4J > Issue Type: Bug > Affects Versions: 2.0.0-alpha0, 2.0.0-alpha1 > Reporter: Dean Hiller > Assignee: SLF4J developers list > > oh, oops, this is a logback bug...need to file it there. ah crap, how to close this issue. I will open on logback. -- This message was sent by Atlassian JIRA (v7.3.1#73012)

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[JIRA] (SLF4J-462) %{caller}
by QOS.CH (JIRA) 01 Jul '19

01 Jul '19

[ https://jira.qos.ch/browse/SLF4J-462?page=com.atlassian.jira.plugin.system.… ] Dean Hiller commented on SLF4J-462: ----------------------------------- sorry, hit enter on accident....filling in right now. > %{caller} > --------- > > Key: SLF4J-462 > URL: https://jira.qos.ch/browse/SLF4J-462 > Project: SLF4J > Issue Type: Bug > Reporter: Dean Hiller > Assignee: SLF4J developers list > -- This message was sent by Atlassian JIRA (v7.3.1#73012)

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[JIRA] (SLF4J-462) %{caller}
by QOS.CH (JIRA) 01 Jul '19

01 Jul '19

Dean Hiller created SLF4J-462: --------------------------------- Summary: %{caller} Key: SLF4J-462 URL: https://jira.qos.ch/browse/SLF4J-462 Project: SLF4J Issue Type: Bug Reporter: Dean Hiller Assignee: SLF4J developers list -- This message was sent by Atlassian JIRA (v7.3.1#73012)

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