static final null character crashes parser

[mebur]

Compiler version

3.3.3

Minimized code

(Java class)

public class Test {
static final char NULL = '\u0000';
}

Output

exception occurred while parser Test.java

An unhandled exception was thrown in the compiler.
Please file a crash report here:
https://github.com/lampepfl/dotty/issues/new/choose

 while compiling: Test.java
    during phase: parser
            mode: Mode(ImplicitsEnabled)
 library version: version 2.13.12
compiler version: version 3.3.3
        settings:

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
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$4.apply(Preconditions.java:210)
at java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:98)
at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:106)
at java.base/jdk.internal.util.Preconditions.checkIndex(Preconditions.java:302)
at java.base/java.lang.String.checkIndex(String.java:4832)
at java.base/java.lang.StringLatin1.charAt(StringLatin1.java:46)
at java.base/java.lang.String.charAt(String.java:1555)
at dotty.tools.dotc.parsing.JavaParsers$JavaParser.tryConstant(JavaParsers.scala:1034)
at dotty.tools.dotc.parsing.JavaParsers$JavaParser.optConstantTpe$1(JavaParsers.scala:726)
at dotty.tools.dotc.parsing.JavaParsers$JavaParser.varDecl(JavaParsers.scala:733)
at dotty.tools.dotc.parsing.JavaParsers$JavaParser.fieldDecls(JavaParsers.scala:665)
at dotty.tools.dotc.parsing.JavaParsers$JavaParser.termDecl(JavaParsers.scala:647)
at dotty.tools.dotc.parsing.JavaParsers$JavaParser.memberDecl(JavaParsers.scala:747)
at dotty.tools.dotc.parsing.JavaParsers$JavaParser.typeBodyDecls(JavaParsers.scala:918)
at dotty.tools.dotc.parsing.JavaParsers$JavaParser.typeBody(JavaParsers.scala:897)
at dotty.tools.dotc.parsing.JavaParsers$JavaParser.classDecl(JavaParsers.scala:822)
at dotty.tools.dotc.parsing.JavaParsers$JavaParser.typeDecl(JavaParsers.scala:1022)
at dotty.tools.dotc.parsing.JavaParsers$JavaParser.compilationUnit(JavaParsers.scala:1076)
at dotty.tools.dotc.parsing.JavaParsers$JavaParser.parse(JavaParsers.scala:44)
at dotty.tools.dotc.parsing.Parser.parse$$anonfun$1(ParserPhase.scala:28)
at dotty.tools.dotc.parsing.Parser.parse$$anonfun$adapted$1(ParserPhase.scala:40)
at scala.Function0.apply$mcV$sp(Function0.scala:42)
at dotty.tools.dotc.core.Phases$Phase.monitor(Phases.scala:440)
at dotty.tools.dotc.parsing.Parser.parse(ParserPhase.scala:40)
at dotty.tools.dotc.parsing.Parser.runOn$$anonfun$1(ParserPhase.scala:49)
at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.immutable.List.foreach(List.scala:333)
at dotty.tools.dotc.parsing.Parser.runOn(ParserPhase.scala:49)
at dotty.tools.dotc.Run.runPhases$1$$anonfun$1(Run.scala:246)
at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1323)
at dotty.tools.dotc.Run.runPhases$1(Run.scala:262)
at dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:270)
at dotty.tools.dotc.Run.compileUnits$$anonfun$adapted$1(Run.scala:279)
at dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:71)
at dotty.tools.dotc.Run.compileUnits(Run.scala:279)
at dotty.tools.dotc.Run.compileSources(Run.scala:194)
at dotty.tools.dotc.Run.compile(Run.scala:179)
at dotty.tools.dotc.Driver.doCompile(Driver.scala:37)
at dotty.tools.dotc.Driver.process(Driver.scala:197)
at dotty.tools.dotc.Driver.process(Driver.scala:165)
at dotty.tools.dotc.Driver.process(Driver.scala:177)
at dotty.tools.dotc.Driver.main(Driver.scala:207)
at dotty.tools.MainGenericCompiler$.run$1(MainGenericCompiler.scala:162)
at dotty.tools.MainGenericCompiler$.main(MainGenericCompiler.scala:186)
at dotty.tools.MainGenericCompiler.main(MainGenericCompiler.scala)

Expectation

Should compile without a problem, it only occurs when it's both static and final.

[som-snytt]

Duplicates #18490 fixed on 3.4