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Switching from the Java High Level Rest Client to the new Java API Client

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I'm often seeing questions on discuss related to the Java API Client usage. For this, in 2019, I started a GitHub repository to provide some code examples that actually work and answer the questions asked by the community.Since then, the High Level Rest Client (HLRC) has been deprecated and the new Java API Client has been released.In order to keep answering questions, I needed … [Read more...] about Switching from the Java High Level Rest Client to the new Java API Client

Elastic’s contribution: Invokedynamic in the OpenTelemetry Java agent

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To overcome the above-mentioned limitations in developing and maintaining auto-instrumentation modules in the OpenTelemetry Java agent, Elastic started contributing its invokedynamic-based instrumentation approach to the OpenTelemetry Java agent in July 2023.  To explain the improvement, you should know that in Java, a common approach to do auto-instrumentation of applications … [Read more...] about Elastic’s contribution: Invokedynamic in the OpenTelemetry Java agent

CISA Issues Warning on Active Exploitation of ZK Java Web Framework Vulnerability

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Feb 28, 2023Ravie LakshmananSoftware Security / Cyber Attack The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a high-severity flaw affecting the ZK Framework to its Known Exploited Vulnerabilities (KEV) catalog based on evidence of active exploitation. Tracked as CVE-2022-36537 (CVSS score: 7.5), the issue impacts ZK Framework versions 9.6.1, … [Read more...] about CISA Issues Warning on Active Exploitation of ZK Java Web Framework Vulnerability

Create your own instrumentation with the Java Agent Plugin

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TroubleshootingThere are some common problems you might run into when creating your plugin:Still experimental?The OpenTelemetry bridge was added in Elastic APM Java Agent version 1.30.0 — so that is the earliest version you can use this plugin mechanism with — and it was initially added as experimental technology. Depending on which version you are using, you may need to have  … [Read more...] about Create your own instrumentation with the Java Agent Plugin

Researcher Releases PoC for Recent Java Cryptographic Vulnerability

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A proof-of-concept (PoC) code demonstrating a newly disclosed digital signature bypass vulnerability in Java has been shared online. The high-severity flaw in question, CVE-2022-21449 (CVSS score: 7.5), impacts the following version of Java SE and Oracle GraalVM Enterprise Edition - Oracle Java SE: 7u331, 8u321, 11.0.14, 17.0.2, 18 Oracle GraalVM Enterprise Edition: 20.3.5, … [Read more...] about Researcher Releases PoC for Recent Java Cryptographic Vulnerability

Get Lifetime Access to This 60-Hour Java Programming Training Bundle @ 97% Discount

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Java is a very versatile programming language. From Android apps to Oracle databases, it can be used to power a wide range of software and systems. As with most technical skills, the best way to learn Java is through building your own projects. But you can definitely speed things up with high-quality training. The Complete 2022 Java Coder Bundle provides plenty of that — nine … [Read more...] about Get Lifetime Access to This 60-Hour Java Programming Training Bundle @ 97% Discount

Security Patch Releases for Critical Zero-Day Bug in Java Spring Framework

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The maintainers of Spring Framework have released an emergency patch to address a newly disclosed remote code execution flaw that, if successfully exploited, could allow an unauthenticated attacker to take control of a targeted system. Tracked as CVE-2022-22965, the high-severity flaw impacts Spring Framework versions 5.3.0 to 5.3.17, 5.2.0 to 5.2.19, and other older, … [Read more...] about Security Patch Releases for Critical Zero-Day Bug in Java Spring Framework

How To Install Java (JRE) 8 on Mac OS X 10.11 El Capitan

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Java is no longer installed with a OS X 10.11 El Capitan clean install, and you’ll find that after updating a Mac a prior version of JRE may no longer function. You may come across when trying to use some particular applications or web content,  “This application requires the legacy Java SE 6 runtime which is unavailable for this version of OS X.” error message, which means if … [Read more...] about How To Install Java (JRE) 8 on Mac OS X 10.11 El Capitan