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https://issues.apache.org/jira/browse/CAMEL-16943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Freeman Yue Fang resolved CAMEL-16943.
--------------------------------------
Resolution: Fixed
> MainPropertyPlaceholderWithEnvTest failed with JDK17
> ----------------------------------------------------
>
> Key: CAMEL-16943
> URL: https://issues.apache.org/jira/browse/CAMEL-16943
> Project: Camel
> Issue Type: Sub-task
> Components: camel-main
> Reporter: Freeman Yue Fang
> Assignee: Freeman Yue Fang
> Priority: Major
> Fix For: Future
>
>
> get exception like
> {code}
> Suppressed: java.lang.reflect.InaccessibleObjectException: Unable to make
> field private final java.util.Map java.util.Collections$UnmodifiableMap.m
> accessible: module java.base does not "opens java.util" to unnamed module
> @bf20622
> at
> java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354)
> at
> java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
> at
> java.base/java.lang.reflect.Field.checkCanSetAccessible(Field.java:178)
> at
> java.base/java.lang.reflect.Field.setAccessible(Field.java:172)
> at
> org.apache.camel.main.MainPropertyPlaceholderWithEnvTest.getFieldValue(MainPropertyPlaceholderWithEnvTest.java:276)
> at
> org.apache.camel.main.MainPropertyPlaceholderWithEnvTest.getEditableMapOfVariables(MainPropertyPlaceholderWithEnvTest.java:226)
> at
> org.apache.camel.main.MainPropertyPlaceholderWithEnvTest.doEnvVariable(MainPropertyPlaceholderWithEnvTest.java:206)
> at
> org.apache.camel.main.MainPropertyPlaceholderWithEnvTest.tearDown(MainPropertyPlaceholderWithEnvTest.java:182)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:568)
> {code}
> This is because System.getEnv() returns a
> java.util.Collections$UnmodifiableMap which isn't supposed to be changed
> during runtime code. To workaround this, normally we need to use reflection
> way to make a private field in java.util.Collections$UnmodifiableMap
> accessible.
> But this is kind of against the encapsulation(Strongly Encapsulate JDK
> Internals ) rule of java Modules since JDK9. Before JDK17, it is it
> possible to access internal APIs via the --illegal-access command line option
> which is enabled by default. However, since JDK17 this --illegal-access is
> removed and we need to either explicitly use --add-opens modules to enable
> deep reflection for JDK internal code, or we need to get rid of the way to
> use JDK Internals
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