[jedit:bugs] #4118 BeanShell error: module java.base does not "opens java.lang" to unnamed module

I run into this issue, too. As I understood, that's a usual issue with Java 16 and later, when code isn't that usual (hacking-like). In former versions of Java such code should have raised warnings, but Java 17 raises exceptions.

I.e. the snippet "TestHashMap.size" used to work in Beanshell until Java 11, although "size" isn't a field but a method. Now with Java 17 an exception is raised (similar to the above) and the code has to be changed to "TestHashMap.size()".

Since Your example snippet seems to be accurate Java, I argue it could be a Beanshell problem and leads me to the question: 

**Is BeanShell compatible with Java 17?**


---

** [bugs:#4118] BeanShell error: module java.base does not "opens java.lang" to unnamed module**

**Status:** open
**Group:** Regressive (new to devel)
**Labels:** macro 
**Created:** Fri Apr 22, 2022 04:03 PM UTC by blurredd
**Last Updated:** Fri Apr 22, 2022 04:03 PM UTC
**Owner:** nobody


I see the following BeanShell error when running a macro that appends to a StringBuilder:

```text
Sourced file: C:\Users\User\AppData\Roaming\jEdit\macros\StringBuilderTest.bsh unknown error: Unable to make public java.lang.AbstractStringBuilder java.lang.AbstractStringBuilder.append(java.lang.String) accessible: module java.base does not "opens java.lang" to unnamed module @7c75222b : at Line: 2 :
 in file: C:\Users\User\AppData\Roaming\jEdit\macros\StringBuilderTest.bsh
 : sb .append ( "test" ) 

	at org.gjt.sp.jedit.bsh.Interpreter.eval(Interpreter.java:696)
	at org.gjt.sp.jedit.BeanShell._runScript(BeanShell.java:343)
	at org.gjt.sp.jedit.BeanShell._runScript(BeanShell.java:291)
	at org.gjt.sp.jedit.BeanShell.runScript(BeanShell.java:217)
	at org.gjt.sp.jedit.Macros$BeanShellHandler.runMacro(Macros.java:1108)
	at org.gjt.sp.jedit.Macros$Macro.invoke(Macros.java:530)
	at org.gjt.sp.jedit.gui.InputHandler.invokeAction(InputHandler.java:343)
	at org.gjt.sp.jedit.jEdit$3.invokeAction(jEdit.java:3417)
	at org.gjt.sp.jedit.jEdit$3.invokeAction(jEdit.java:3399)
	at org.gjt.sp.jedit.EditAction$Wrapper.actionPerformed(EditAction.java:225)
	at java.desktop/javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1972)
...
```

StringBuilderTest.bsh:

```java
StringBuilder sb = new StringBuilder():
sb.append("test");
```

I'm using jEdit 5.6.0, java version 17.0.2 on Windows 10 Enterprise.




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