Fix Java 17 compatibility issue with reflection access to Field.modifiers

[zendesk-abhijeet]

Fix Java 17 compatibility issue causing agent launch failures

Problem

The EnvInject plugin fails to launch agents on Java 17+ environments due to module system restrictions. The error occurs when the plugin attempts to access internal JDK reflection APIs that are no longer accessible without explicit module opens.

Error seen:

java.lang.reflect.InaccessibleObjectException: Unable to make private native java.lang.reflect.Field[] java.lang.Class.getDeclaredFields0(boolean) accessible: module java.base does not "opens java.lang" to unnamed module

Root Cause

• Java 17's module system restricts access to Field.class.getDeclaredField("modifiers")
• The plugin was using reflection to modify the final modifier on EnvVars.masterEnvVars field
• This approach worked in Java 8-16 but fails in Java 17+ without JVM arguments like --add-opens

Solution

Implemented a graceful fallback mechanism that:

• Tries the original approach first - maintains backward compatibility with Java 8-16
• Catches reflection exceptions - handles NoSuchFieldException and IllegalAccessException gracefully
• Falls back to safe update - uses EnvVars.masterEnvVars.putAll() instead of field replacement
• Maintains thread safety - uses synchronized block for the fallback approach

Code Changes

• Modified EnvInjectMasterEnvVarsSetter.getModifiers() to handle missing modifiers field
• Added try-catch in call() method to gracefully handle reflection failures
• Implemented synchronized fallback using clear() + putAll()

Testing done

Executed all unit tests

[INFO] -------------------------------------------------------
[INFO]  T E S T S
[INFO] -------------------------------------------------------
Running tests for org.jenkins-ci.plugins:envinject:2.999999-SNAPSHOT
Dec 22, 2025 4:38:06 PM org.junit.platform.launcher.core.DiscoveryIssueNotifier logIssues
INFO: TestEngine with ID 'junit-vintage' encountered a non-critical issue during test discovery:

(1) [INFO] The JUnit Vintage engine is deprecated and should only be used temporarily while migrating tests to JUnit Jupiter or another testing framework with native JUnit Platform support.
Dec 22, 2025 4:38:06 PM org.junit.platform.launcher.core.DiscoveryIssueNotifier logIssues
INFO: TestEngine with ID 'junit-vintage' encountered a non-critical issue during test discovery:

(1) [INFO] The JUnit Vintage engine is deprecated and should only be used temporarily while migrating tests to JUnit Jupiter or another testing framework with native JUnit Platform support.
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Running org.jenkins_ci.plugins.envinject.InjectedTest
[INFO] Tests run: 46, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 4.299 s -- in org.jenkins_ci.plugins.envinject.InjectedTest
[INFO] Running org.jenkinsci.plugins.envinject.BuildCauseRetrieverTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 7, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 6.798 s -- in org.jenkinsci.plugins.envinject.BuildCauseRetrieverTest
[INFO] Running org.jenkinsci.plugins.envinject.EnvInjectActionTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[WARNING] Tests run: 5, Failures: 0, Errors: 0, Skipped: 2, Time elapsed: 6.529 s -- in org.jenkinsci.plugins.envinject.EnvInjectActionTest
[INFO] Running org.jenkinsci.plugins.envinject.EnvInjectBuildWrapperTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 12, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 19.33 s -- in org.jenkinsci.plugins.envinject.EnvInjectBuildWrapperTest
[INFO] Running org.jenkinsci.plugins.envinject.EnvInjectBuilderTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 4.045 s -- in org.jenkinsci.plugins.envinject.EnvInjectBuilderTest
[INFO] Running org.jenkinsci.plugins.envinject.EnvInjectEnvVarsContributorTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 2.592 s -- in org.jenkinsci.plugins.envinject.EnvInjectEnvVarsContributorTest
[INFO] Running org.jenkinsci.plugins.envinject.EnvInjectEnvVarsEmptyTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 3.139 s -- in org.jenkinsci.plugins.envinject.EnvInjectEnvVarsEmptyTest
[INFO] Running org.jenkinsci.plugins.envinject.EnvInjectEvaluatedGroovyScriptTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 17.73 s -- in org.jenkinsci.plugins.envinject.EnvInjectEvaluatedGroovyScriptTest
[INFO] Running org.jenkinsci.plugins.envinject.EnvInjectJobPropertyInfoTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 2.985 s -- in org.jenkinsci.plugins.envinject.EnvInjectJobPropertyInfoTest
[INFO] Running org.jenkinsci.plugins.envinject.EnvInjectJobPropertyTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[WARNING] Tests run: 7, Failures: 0, Errors: 0, Skipped: 2, Time elapsed: 13.88 s -- in org.jenkinsci.plugins.envinject.EnvInjectJobPropertyTest
[INFO] Running org.jenkinsci.plugins.envinject.EnvInjectPasswordMatrixProjectTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 3.771 s -- in org.jenkinsci.plugins.envinject.EnvInjectPasswordMatrixProjectTest
[INFO] Running org.jenkinsci.plugins.envinject.EnvInjectPasswordTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 4.920 s -- in org.jenkinsci.plugins.envinject.EnvInjectPasswordTest
[INFO] Running org.jenkinsci.plugins.envinject.EnvInjectPluginActionTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 4.694 s -- in org.jenkinsci.plugins.envinject.EnvInjectPluginActionTest
[INFO] Running org.jenkinsci.plugins.envinject.EnvInjectPluginConfigurationTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 2.878 s -- in org.jenkinsci.plugins.envinject.EnvInjectPluginConfigurationTest
[INFO] Running org.jenkinsci.plugins.envinject.EnvInjectVarListTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 3.140 s -- in org.jenkinsci.plugins.envinject.EnvInjectVarListTest
[INFO] Running org.jenkinsci.plugins.envinject.GlobalPropertiesTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 3.907 s -- in org.jenkinsci.plugins.envinject.GlobalPropertiesTest
[INFO] Running org.jenkinsci.plugins.envinject.migration.EnvInjectMigrationBuildWrapperTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 3.638 s -- in org.jenkinsci.plugins.envinject.migration.EnvInjectMigrationBuildWrapperTest
[INFO] Running org.jenkinsci.plugins.envinject.service.BuildCauseRetrieverTest
WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.394 s -- in org.jenkinsci.plugins.envinject.service.BuildCauseRetrieverTest
[INFO] Running org.jenkinsci.plugins.envinject.service.EnvInjectMasterEnvVarsSetterTest
[INFO] Tests run: 11, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.014 s -- in org.jenkinsci.plugins.envinject.service.EnvInjectMasterEnvVarsSetterTest
[INFO] Running org.jenkinsci.plugins.envinject.service.EnvInjectVariableGetterSystemTest
WARNING: A restricted method in java.lang.System has been called
WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/Users/abhijeet.ghosh/.m2/repository/net/java/dev/jna/jna/5.15.0/jna-5.15.0.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 2.785 s -- in org.jenkinsci.plugins.envinject.service.EnvInjectVariableGetterSystemTest
[INFO] Running org.jenkinsci.plugins.envinject.service.EnvInjectVariableGetterTest
WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider (file:/Users/abhijeet.ghosh/.m2/repository/com/thoughtworks/xstream/xstream/1.4.20/xstream-1.4.20.jar)
WARNING: Please consider reporting this to the maintainers of class com.thoughtworks.xstream.converters.reflection.SunUnsafeReflectionProvider
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
[INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.410 s -- in org.jenkinsci.plugins.envinject.service.EnvInjectVariableGetterTest
[INFO] Running org.jenkinsci.plugins.envinject.service.PropertiesGetterTest
[INFO] Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.022 s -- in org.jenkinsci.plugins.envinject.service.PropertiesGetterTest
[INFO] Running org.jenkinsci.plugins.envinject.service.PropertiesLoaderTest
[INFO] Tests run: 17, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.077 s -- in org.jenkinsci.plugins.envinject.service.PropertiesLoaderTest
[INFO] 
[INFO] Results:
[INFO] 
[WARNING] Tests run: 141, Failures: 0, Errors: 0, Skipped: 4
[INFO] 
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  02:18 min
[INFO] Finished at: 2025-12-22T16:40:19+05:30
[INFO] ------------------------------------------------------------------------

Have installed into a Jenkins instance and used the plugin. Tested agent launch logs with and without the fix:
Without Fix

With Fix

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant issues in GitHub or Jira
• Link to relevant pull requests, esp. upstream and downstream changes
• Ensure you have provided tests that demonstrate the feature works or the issue is fixed

[NotMyFault]

Thanks!