private static <T extends Integer> float test(T test) {
    if (test instanceof float i) { return i; }
    return 2;
}

public static void main(String argv[]) {
    Integer value = 0x1000000;
    System.out.println(test(value));
}
 
java --version
java 23-ea 2024-09-17
Java(TM) SE Runtime Environment (build 23-ea+18-1469)
Java HotSpot(TM) 64-Bit Server VM (build 23-ea+18-1469, mixed mode, sharing)
 
An exception has occurred in the compiler (23-ea). Please file a bug against the Java compiler via the Java bug reporting page (https://bugreport.java.com) after checking the Bug Database (https://bugs.java.com) for duplicates. Include your program, the following diagnostic, and the parameters passed to the Java compiler in your report. Thank you.
java.lang.AssertionError: T.intValue
       at jdk.compiler/com.sun.tools.javac.util.Assert.error(Assert.java:162)
       at jdk.compiler/com.sun.tools.javac.code.Symbol$MethodSymbol.<init>(Symbol.java:1974)
       at jdk.compiler/com.sun.tools.javac.code.Symbol$MethodSymbol$1.<init>(Symbol.java:1980)
       at jdk.compiler/com.sun.tools.javac.code.Symbol$MethodSymbol.clone(Symbol.java:1980)
       at jdk.compiler/com.sun.tools.javac.code.Symbol$MethodSymbol.clone(Symbol.java:1950)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.binaryQualifier(Gen.java:264)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitSelect(Gen.java:2377)
       at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:2582)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:859)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitApply(Gen.java:1910)
       at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1816)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:859)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genArgs(Gen.java:884)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitApply(Gen.java:1915)
       at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1816)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:859)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genCond(Gen.java:761)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genCond(Gen.java:674)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitBinary(Gen.java:2194)
       at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBinary.accept(JCTree.java:2175)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:859)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitLetExpr(Gen.java:2422)
       at jdk.compiler/com.sun.tools.javac.tree.JCTree$LetExpr.accept(JCTree.java:3419)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:859)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genCond(Gen.java:761)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genCond(Gen.java:674)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitBinary(Gen.java:2190)
       at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBinary.accept(JCTree.java:2175)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:859)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genCond(Gen.java:761)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genCond(Gen.java:674)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitIf(Gen.java:1751)
       at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1572)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genDef(Gen.java:588)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:623)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:609)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStats(Gen.java:660)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.doVisitBlock(Gen.java:1102)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitBlock(Gen.java:1095)
       at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1092)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genDef(Gen.java:588)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:623)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:609)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStats(Gen.java:660)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.doVisitBlock(Gen.java:1102)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitBlock(Gen.java:1095)
       at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1092)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genDef(Gen.java:588)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:623)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genMethod(Gen.java:949)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitMethodDef(Gen.java:912)
       at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:916)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genDef(Gen.java:588)
       at jdk.compiler/com.sun.tools.javac.jvm.Gen.genClass(Gen.java:2461)
       at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.genCode(JavaCompiler.java:770)
       at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1709)
       at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1677)
       at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:977)
       at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.lambda$doCall$0(JavacTaskImpl.java:104)
       at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.invocationHelper(JavacTaskImpl.java:152)
       at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:100)
       at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:94)
       at jdk.compiler/com.sun.tools.javac.launcher.MemoryContext.compileProgram(MemoryContext.java:125)
       at jdk.compiler/com.sun.tools.javac.launcher.SourceLauncher.run(SourceLauncher.java:150)
       at jdk.compiler/com.sun.tools.javac.launcher.SourceLauncher.main(SourceLauncher.java:78)
 
This code compiles and executes when the generic type is the wrapper for the primitive type but fails with an exception otherwise