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https://issues.apache.org/jira/browse/FREEMARKER-133?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17042223#comment-17042223
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Lauri Keel commented on FREEMARKER-133:
---------------------------------------
It does work fine on one machine, but not another one. Identical Java runtime
(11.0.6+10-post-Debian-1deb10u1), identical jars.
The code that fails is:
{code:java}
if (!Modifier.isPublic(getClassAccessFlags(memberClass))) {
isSameClassPackage = isSameClassPackage(currentClass, memberClass);
gotIsSameClassPackage = true;
if (!isSameClassPackage) {
return false;
}
}
{code}
where memberClass is AbstractListMultimap – but that is package-private, so
isPublic() returns false.
I tried debugging both instances and the difference is that the Method passed
to SimpleMethodModel in one case is the method of ArrayListMultimap (works) and
in another one it is from AbstractListMultimap (fails).
> BeansWrapper IllegalAccessException when class defining accessed method is
> package-private, but subclass is public
> ------------------------------------------------------------------------------------------------------------------
>
> Key: FREEMARKER-133
> URL: https://issues.apache.org/jira/browse/FREEMARKER-133
> Project: Apache Freemarker
> Issue Type: Bug
> Reporter: Lauri Keel
> Priority: Major
>
> Consider the following code:
> {code:java}
> <#list orders.get(type) as order></#list>{code}
> where orders is com.google.common.collect.ArrayListMultimap. An
> IllegalAccessException is thrown, because
> com.google.common.collect.AbstractListMultimap where the get method is
> defined is package-private.
> {code:java}
> ----
> FTL stack trace ("~" means nesting-related):
> - Failed at: #list orders.get(type) as order [in template
> "admin-orders.ftl" at line 4, column 9]
> ----
> at
> freemarker.ext.beans._MethodUtil.newInvocationTemplateModelException(_MethodUtil.java:289)
> at
> freemarker.ext.beans._MethodUtil.newInvocationTemplateModelException(_MethodUtil.java:252)
> at
> freemarker.ext.beans.SimpleMethodModel.exec(SimpleMethodModel.java:77)
> at freemarker.core.MethodCall._eval(MethodCall.java:65)
> at freemarker.core.Expression.eval(Expression.java:83)
> at
> freemarker.core.IteratorBlock.acceptWithResult(IteratorBlock.java:98)
> at freemarker.core.IteratorBlock.accept(IteratorBlock.java:93)
> at freemarker.core.Environment.visit(Environment.java:366)
> at
> freemarker.core.IteratorBlock$IterationContext.executedNestedContentForCollOrSeqListing(IteratorBlock.java:291)
> at
> freemarker.core.IteratorBlock$IterationContext.executeNestedContent(IteratorBlock.java:271)
> at
> freemarker.core.IteratorBlock$IterationContext.accept(IteratorBlock.java:242)
> at
> freemarker.core.Environment.visitIteratorBlock(Environment.java:642)
> at
> freemarker.core.IteratorBlock.acceptWithResult(IteratorBlock.java:107)
> at freemarker.core.IteratorBlock.accept(IteratorBlock.java:93)
> at freemarker.core.Environment.visit(Environment.java:330)
> at freemarker.core.Environment.visit(Environment.java:336)
> at freemarker.core.Environment.process(Environment.java:309)
> at freemarker.template.Template.process(Template.java:384)
> at puu.page.PageHandler.getRendered(PageHandler.java:550)
> ... 36 common frames omitted
> Caused by: java.lang.IllegalAccessException: class
> freemarker.ext.beans.BeansWrapper cannot access a member of class
> com.google.common.collect.AbstractListMultimap with modifiers "public
> volatile"
> at
> java.base/jdk.internal.reflect.Reflection.newIllegalAccessException(Reflection.java:361)
> at
> java.base/java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:591)
> at java.base/java.lang.reflect.Method.invoke(Method.java:558)
> at
> freemarker.ext.beans.BeansWrapper.invokeMethod(BeansWrapper.java:1505)
> at
> freemarker.ext.beans.SimpleMethodModel.exec(SimpleMethodModel.java:72)
> ... 52 common frames omitted
> {code}
> Tested in 2.3.29, 2.3.28, 2.3.23. Strangely it occasionally randomly does
> work.
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