--- title: How Does a Java Program Get Its Own Process ID | daily.dev description: Covers multiple ways to retrieve the current Java process ID across different Java versions. The pre-Java 9 approach parses the RuntimeMXBean name string... canonical: https://daily.dev/posts/how-does-a-java-program-get-its-own-process-id-mepezqwmx twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: How Does a Java Program Get Its Own Process ID | daily.dev og:description: Covers multiple ways to retrieve the current Java process ID across different Java versions. The pre-Java 9 approach parses the RuntimeMXBean name string... og:url: https://daily.dev/posts/how-does-a-java-program-get-its-own-process-id-mepezqwmx og:image: https://api.daily.dev/og/posts/MEPEzQwMX.png og:image:alt: How Does a Java Program Get Its Own Process ID og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # How Does a Java Program Get Its Own Process ID **[Baeldung](https://daily.dev/sources/baeldung)** · 4 min read · 3 upvotes · 0 comments ## Summary Covers multiple ways to retrieve the current Java process ID across different Java versions. The pre-Java 9 approach parses the RuntimeMXBean name string (format PID@hostname), which is unreliable since the format is not guaranteed. Java 9 introduced the ProcessHandle API (ProcessHandle.current().pid()) as a standardized, type-safe solution. Java 10 added getPid() directly to RuntimeMXBean for a cleaner JMX-based alternative. A version-aware utility class is also demonstrated that tries modern methods first and falls back to older ones for cross-version library compatibility. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How do I get the current process ID in Java 9 or later? Use ProcessHandle.current().pid(), which returns the native process ID as a type-safe long. This method was introduced in Java 9 as part of JEP 102 (the Java Process API), is available in java.base with no extra dependencies, and works cross-platform without vendor-specific hacks or string parsing. _daily.dev surfaces practical Java API guides like this for developers modernizing process-handling code._ ### How can I get a Java process ID before Java 9 without ProcessHandle? Parse the string from ManagementFactory.getRuntimeMXBean().getName(), which is typically formatted as PID@hostname, and extract the numeric portion before the @ symbol. This is unreliable because the Java documentation states the returned name can be any arbitrary string, so the format may differ across JVM implementations or future versions. _Developers maintaining legacy Java codebases can track these compatibility quirks on daily.dev._ ### What is the difference between ProcessHandle.pid() and RuntimeMXBean.getPid() in Java? Both return the process ID as a long without string parsing, but RuntimeMXBean.getPid() was added in Java 10 as a default method on the existing RuntimeMXBean interface, while ProcessHandle.current().pid() was introduced a version earlier in Java 9 as a standalone, standardized API in java.base. _daily.dev helps developers comparing Java standard library APIs stay across such version differences._ ## Similar posts on daily.dev - [Generate Valid and Unique Identifiers](https://daily.dev/posts/generate-valid-and-unique-identifiers-pebrzd1tw) · Baeldung · 3 upvotes · 0 comments - [EP211: How the JVM Works](https://daily.dev/posts/ep211-how-the-jvm-works-e0xrzznoc) · ByteByteGo · 8 upvotes · 1 comments - [Why Java Needs Three Different Components: JDK, JRE & JVM](https://daily.dev/posts/why-java-needs-three-different-components-jdk-jre-jvm-mrsamursn) · Medium · 0 upvotes · 0 comments - [foojay – a place for friends of OpenJDK](https://daily.dev/posts/foojay-a-place-for-friends-of-openjdk-fgo2ektwa) · Foojay.io · 0 upvotes · 0 comments --- Tags: [#java](https://daily.dev/tags/java), [#jvm](https://daily.dev/tags/jvm) [View this post on daily.dev](https://daily.dev/posts/how-does-a-java-program-get-its-own-process-id-mepezqwmx) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"How Does a Java Program Get Its Own Process ID","url":"https://daily.dev/posts/how-does-a-java-program-get-its-own-process-id-mepezqwmx","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/how-does-a-java-program-get-its-own-process-id-mepezqwmx"},"datePublished":"2026-07-14T12:40:25.954Z","dateModified":"2026-09-13T21:29:33.994Z","description":"Covers multiple ways to retrieve the current Java process ID across different Java versions. 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