[janino-dev] [jira] Created: (JANINO-128) java.lang.IllegalAccessError when trying to use function from package-protected superclass.

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[janino-dev] [jira] Created: (JANINO-128) java.lang.IllegalAccessError when trying to use function from package-protected superclass.

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java.lang.IllegalAccessError when trying to use function from package-protected superclass.
-------------------------------------------------------------------------------------------

Key: JANINO-128
URL: http://jira.codehaus.org/browse/JANINO-128
Project: Janino
Issue Type: Bug
Affects Versions: 2.5.15
Environment: JDK 1.6 update 10, Windows XP SP3.
Reporter: Mr Glee
Assignee: Arno Unkrig

Using janino 2.5.15 (not currently unreleased as the 'affects versions' box suggests), trying to access a public member function of a superclass that is package-protected results in an IllegalAccessException.

For example, trying to use java.lang.StringBuilder's length() method (which is defined in package-protected java.lang.AbstractStringBuilder):

<code>
public static final void main(String[] args)
{
try
{
ScriptEvaluator se = new ScriptEvaluator(
"StringBuilder sb = new StringBuilder(); return sb.length();",
Integer.class,
new String[0],
new Class[0]);

Object res = se.evaluate(new Object[0]);
System.out.println(res.toString());
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
</code>

Using this code results in the following:

Exception in thread "main" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at Main.main(Main.java:23)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:90)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.janino.ScriptEvaluator.evaluate(ScriptEvaluator.java)
at org.codehaus.janino.ScriptEvaluator.evaluate(ScriptEvaluator.java)
at Main.main(Main.java:18)
... 5 more
Caused by: java.lang.IllegalAccessError: tried to access class java.lang.AbstractStringBuilder from class SC
at SC.eval0(SC.java:1)
... 12 more

This isssue seems to be the same (or a very similar) issue raised in JANINO-42 (http://jira.codehaus.org/browse/JANINO-42), which is marked as fixed 2.3.18.

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[janino-dev] [jira] Commented: (JANINO-128) java.lang.IllegalAccessError when trying to use function from package-protected superclass.

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[ http://jira.codehaus.org/browse/JANINO-128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=174124#action_174124 ]

Simon Nickerson commented on JANINO-128:
----------------------------------------

I have come across this issue as well, and with the same method on StringBuilder().

> java.lang.IllegalAccessError when trying to use function from package-protected superclass.
> -------------------------------------------------------------------------------------------
>
> Key: JANINO-128
> URL: http://jira.codehaus.org/browse/JANINO-128
> Project: Janino
> Issue Type: Bug
> Affects Versions: 2.5.15
> Environment: JDK 1.6 update 10, Windows XP SP3.
> Reporter: Mr Glee
> Assignee: Arno Unkrig
>
> Using janino 2.5.15 (not currently unreleased as the 'affects versions' box suggests), trying to access a public member function of a superclass that is package-protected results in an IllegalAccessException.
> For example, trying to use java.lang.StringBuilder's length() method (which is defined in package-protected java.lang.AbstractStringBuilder):
> <code>
> public static final void main(String[] args)
> {
> try
> {
> ScriptEvaluator se = new ScriptEvaluator(
> "StringBuilder sb = new StringBuilder(); return sb.length();",
> Integer.class,
> new String[0],
> new Class[0]);
> Object res = se.evaluate(new Object[0]);
> System.out.println(res.toString());
> }
> catch (Exception e)
> {
> throw new RuntimeException(e);
> }
> }
> </code>
> Using this code results in the following:
> Exception in thread "main" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
> at Main.main(Main.java:23)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at com.intellij.rt.execution.application.AppMain.main(AppMain.java:90)
> Caused by: java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.codehaus.janino.ScriptEvaluator.evaluate(ScriptEvaluator.java)
> at org.codehaus.janino.ScriptEvaluator.evaluate(ScriptEvaluator.java)
> at Main.main(Main.java:18)
> ... 5 more
> Caused by: java.lang.IllegalAccessError: tried to access class java.lang.AbstractStringBuilder from class SC
> at SC.eval0(SC.java:1)
> ... 12 more
> This isssue seems to be the same (or a very similar) issue raised in JANINO-42 (http://jira.codehaus.org/browse/JANINO-42), which is marked as fixed 2.3.18.

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