ADDITIONAL SYSTEM INFORMATION :
Manjaro, OpenJDK from repositories
openjdk version "1.8.0_172"
OpenJDK Runtime Environment (build 1.8.0_172-b11)
OpenJDK 64-Bit Server VM (build 25.172-b11, mixed mode)
A DESCRIPTION OF THE PROBLEM :
AssertionError on intersection types in throws clause with all debugging info (-g flag of javac) when compiling the provided code.
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile the class with `javac -g Exceptions.java`
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The code compiling
ACTUAL -
An exception has occurred in the compiler (10.0.1). Please file a bug against the Java compiler via the Java bug reporting page (http://bugreport.java.com) after checking the Bug Database (http://bugs.java.com) for duplicates. Include your program and the following diagnostic in your report. Thank you.
java.lang.AssertionError: Unexpected intersection type: java.lang.Exception&Exceptions.Example<? extends java.lang.Number&java.lang.Comparable<? extends java.lang.Number&java.lang.Comparable<?>>>
at jdk.compiler/com.sun.tools.javac.jvm.ClassWriter.enterInner(ClassWriter.java:1043)
at jdk.compiler/com.sun.tools.javac.jvm.ClassWriter$CWSignatureGenerator.classReference(ClassWriter.java:312)
at jdk.compiler/com.sun.tools.javac.code.Types$SignatureGenerator.assembleClassSig(Types.java:5182)
at jdk.compiler/com.sun.tools.javac.code.Types$SignatureGenerator.assembleSig(Types.java:5114)
at jdk.compiler/com.sun.tools.javac.jvm.ClassWriter$CWSignatureGenerator.assembleSig(ClassWriter.java:291)
at jdk.compiler/com.sun.tools.javac.code.Types$SignatureGenerator.assembleSig(Types.java:5225)
at jdk.compiler/com.sun.tools.javac.code.Types$SignatureGenerator.assembleClassSig(Types.java:5201)
at jdk.compiler/com.sun.tools.javac.code.Types$SignatureGenerator.assembleSig(Types.java:5114)
at jdk.compiler/com.sun.tools.javac.jvm.ClassWriter$CWSignatureGenerator.assembleSig(ClassWriter.java:291)
at jdk.compiler/com.sun.tools.javac.jvm.ClassWriter.typeSig(ClassWriter.java:334)
at jdk.compiler/com.sun.tools.javac.jvm.ClassWriter.writeCode(ClassWriter.java:1271)
at jdk.compiler/com.sun.tools.javac.jvm.ClassWriter.writeMethod(ClassWriter.java:1158)
at jdk.compiler/com.sun.tools.javac.jvm.ClassWriter.writeMethods(ClassWriter.java:1653)
at jdk.compiler/com.sun.tools.javac.jvm.ClassWriter.writeClassFile(ClassWriter.java:1761)
at jdk.compiler/com.sun.tools.javac.jvm.ClassWriter.writeClass(ClassWriter.java:1679)
at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.genCode(JavaCompiler.java:749)
at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1627)
at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1595)
at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:965)
at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:306)
at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:165)
at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:57)
at jdk.compiler/com.sun.tools.javac.Main.main(Main.java:43)
---------- BEGIN SOURCE ----------
import java.util.List;
public class Exceptions {
public static void main(String[] args) {
var exceptions = List.of(new Exceptionable(), new VeryExceptionable());
try {
raiseException(exceptions.get(0));
} catch (Exception e) {
e.printStackTrace();
}
}
private static <E extends Exception & Example<?>> void raiseException(E exceptionable) throws E {
throw exceptionable;
}
private interface Example<T> {
}
private static class Exceptionable extends Exception implements Example<Integer> {
}
private static class VeryExceptionable extends Exception implements Example<Long> {
}
}
---------- END SOURCE ----------
CUSTOMER SUBMITTED WORKAROUND :
Don't write stupid code :)
FREQUENCY : always