ADDITIONAL SYSTEM INFORMATION :
Tested on MacOS 26.2 & Ubuntu 24.04.3 LTS

A DESCRIPTION OF THE PROBLEM :
While testing around with the jshell, i discovered that the jshell crashes and throws an error when using the Keyword "public" in specific cases. When leaving it out it wont crash and will just throw an error. If you try to reopen the jshell and then get to the last thing that was sended in the jshell, the jshell will just crash again

REGRESSION : Last worked in version 24

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Open jshell
public void E test(){E[] myarr = new Object[10];}

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
| Error:
| '(' expected
| public void E test(){E[] myarr = new Object[10];}
| ^-------------^

ACTUAL -
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: Range [18, 14) out of bounds for length 49
at java.base/jdk.internal.util.Preconditions$1.apply(Preconditions.java:55)
at java.base/jdk.internal.util.Preconditions$1.apply(Preconditions.java:52)
at java.base/jdk.internal.util.Preconditions$4.apply(Preconditions.java:213)
at java.base/jdk.internal.util.Preconditions$4.apply(Preconditions.java:210)
at java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:98)
at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckFromToIndex(Preconditions.java:112)
at java.base/jdk.internal.util.Preconditions.checkFromToIndex(Preconditions.java:349)
at java.base/java.lang.String.checkBoundsBeginEnd(String.java:4950)
at java.base/java.lang.String.substring(String.java:2912)
at jdk.jshell/jdk.internal.jshell.tool.ConsoleIOContext$HighlighterImpl.highlight(ConsoleIOContext.java:1418)
at jdk.internal.le/jdk.internal.org.jline.reader.impl.LineReaderImpl.getHighlightedBuffer(LineReaderImpl.java:4127)
at jdk.internal.le/jdk.internal.org.jline.reader.impl.LineReaderImpl.getDisplayedBufferWithPrompts(LineReaderImpl.java:4065)
at jdk.internal.le/jdk.internal.org.jline.reader.impl.LineReaderImpl.redisplay(LineReaderImpl.java:3933)
at jdk.internal.le/jdk.internal.org.jline.reader.impl.LineReaderImpl.doCleanup(LineReaderImpl.java:2601)
at jdk.internal.le/jdk.internal.org.jline.reader.impl.LineReaderImpl.cleanup(LineReaderImpl.java:2592)
at jdk.internal.le/jdk.internal.org.jline.reader.impl.LineReaderImpl.readLine(LineReaderImpl.java:777)
at jdk.internal.le/jdk.internal.org.jline.reader.impl.LineReaderImpl.readLine(LineReaderImpl.java:512)
at jdk.jshell/jdk.internal.jshell.tool.ConsoleIOContext.readLine(ConsoleIOContext.java:229)
at jdk.jshell/jdk.internal.jshell.tool.JShellTool.getInput(JShellTool.java:1308)
at jdk.jshell/jdk.internal.jshell.tool.JShellTool.run(JShellTool.java:1242)
at jdk.jshell/jdk.internal.jshell.tool.JShellTool.start(JShellTool.java:1027)
at jdk.jshell/jdk.internal.jshell.tool.JShellToolBuilder.start(JShellToolBuilder.java:273)
at jdk.jshell/jdk.internal.jshell.tool.JShellToolProvider.main(JShellToolProvider.java:120)

---------- BEGIN SOURCE ----------
public void E test(){E[] myarr = new Object[10];}
---------- END SOURCE ----------