Single warning message if the same library loaded-AIX

eclipse-openj9#1264

Fix added to restrict display of multiple warnings on loading the same agent on AIX

Closes eclipse-openj9#1264
Signed-off-by: Sreekala Gopakumar <sreekala.gopakumar@ibm.com>

docs/version0.44.md

@@ -27,7 +27,7 @@ The following new features and notable changes since version 0.43.0 are included
 
 - [New binaries and changes to supported environments](#binaries-and-supported-environments)
 - [Change in behavior of the `-Djava.security.manager` system property for OpenJDK version 8](#change-in-behavior-of-the-djavasecuritymanager-system-property-for-openjdk-version-8)
-
+- [Display of multiple warnings on loading the same agent restricted on AIX systems](#display-of-multiple-warnings-on-loading-the-same-agent-restricted-on-aix-systems)
 ## Features and changes
 
 ### Binaries and supported environments
@@ -42,6 +42,14 @@ From OpenJDK version 18 onwards, if you enable the `SecurityManager` at runtime
 
 To resolve this issue, OpenJDK version 17 ignores these options and from 0.41.0 release onwards, OpenJDK version 11 also ignores these options. With this release, OpenJDK version 8 too ignores the `allow` and `disallow` keywords, if specified.
 
+### ![Start of content that applies to Java 21 (LTS) and later](cr/java21plus.png) Display of multiple warnings on loading the same agent restricted on AIX systems
+
+Earlier, for Java 21 and later, on OpenJ9™ supported operating systems other than AIX® warnings were issued once when the agents are loaded dynamically into a running VM after startup without specifying the `-XX:+EnableDynamicAgentLoading` option and the same agents were loaded before.
+
+Now, from 0.44.0 release onwards, AIX systems also can detect whether an agent was previously loaded or not if the agent was loaded through a platform-independent name or an absolute path to the platform-dependent library. Therefore, like other platforms, on AIX systems also, the warnings are issued only once for the same agent when the `-XX:+EnableDynamicAgentLoading` option is not specified.
+
+For more information, see [`-XX:[+|-]EnableDynamicAgentLoading`](xxenabledynamicagentloading.md). ![End of content that applies to Java 21 (LTS) and later](cr/java_close_lts.png)
+
 ## Known problems and full release information
 
 To see known problems and a complete list of changes between Eclipse OpenJ9 v0.43.0 and v0.44.0 releases, see the [Release notes](https://github.com/eclipse-openj9/openj9/blob/master/doc/release-notes/0.44/0.44.md).

docs/xxenabledynamicagentloading.md

@@ -55,11 +55,9 @@ These warnings are issued only once for the same agent when the `-XX:+EnableDyna
 
 If the `-XX:+EnableDynamicAgentLoading` option is set, all agents that are dynamically loaded are considered as approved by the application owner, and therefore, no warnings are issued.
 
-Eclipse OpenJ9™ supported operating systems other than AIX® have APIs to determine whether the same agent was loaded before or not, even if an agent is loaded with a platform-independent name or an absolute path to the platform-dependent library.
+Eclipse OpenJ9™ supported operating systems have APIs to determine whether the same agent was loaded before or not, even if an agent is loaded with a platform-independent name or an absolute path to the platform-dependent library.
 
-AIX systems cannot detect whether an agent was previously loaded or not if the agent was loaded through a platform-independent name or an absolute path to the platform-dependent library. Therefore, on AIX systems, warnings are issued each time an agent is loaded dynamically through the Attach API (`VirtualMachine.loadAgentLibrary(agent)`) even if the same agent was loaded before through the command-line option (`-agentpath:/Absolute/Path/to/agentLibrary`) at startup.
-
-A fix to restrict this display of multiple warnings on loading the same agent will be available in a later version of OpenJ9. ![End of content that applies to Java 21 (LTS) and later](cr/java_close_lts.png)
+From 0.44.0 release onwards, AIX systems also can detect whether an agent was previously loaded or not if the agent was loaded through a platform-independent name or an absolute path to the platform-dependent library. Therefore, like other platforms, on AIX systems also, the warnings are issued only once for the same agent when the `-XX:+EnableDynamicAgentLoading` option is not specified. ![End of content that applies to Java 21 (LTS) and later](cr/java_close_lts.png)
 
 ## See also