Ed Pavlak created BCEL-304:
------------------------------
Summary: ClassPath.getClassFile does not work with Java 9 and
higher
Key: BCEL-304
URL: https://issues.apache.org/jira/browse/BCEL-304
Project: Commons BCEL
Issue Type: Bug
Components: Main
Affects Versions: 6.2
Reporter: Ed Pavlak
When trying to get the class file for Java classes (ie. java.lang.String), an
IOException is thrown:
Exception in thread "main" java.io.IOException: Couldn't find:
java.lang.String.class
at org.apache.bcel.util.ClassPath.getClassFile(ClassPath.java:279)
at org.apache.bcel.util.ClassPath.getClassFile(ClassPath.java:301)
at bcel.test.GetClassFileTest.main(GetClassFileTest.java:12)
The root cause appears to be the restructuring of Java starting with Java 9.
Specifically, the removal of the rt.jar. The above excpetion can be reproduced
using a simple application:
package bcel.test;
import java.io.IOException;
import org.apache.bcel.util.ClassPath;
public class GetClassFileTest {
public static void main(String[] args) throws IOException {
String className = "java.lang.String";
System.out.println("Looking up ClassPath.ClassFile for: " + className);
ClassPath.ClassFile classFile =
ClassPath.SYSTEM_CLASS_PATH.getClassFile(className);
if (classFile != null) {
System.out.println("Class file base: " + classFile.getBase());
System.out.println("Class file path: " + classFile.getPath());
}
}
}
Running this on Java 8 produces the following output, whereas running it on
Java 9+ produces the IOException:
Class file base: C:\jdk1.8.0_161\jre\lib\rt.jar
Class file path: java/lang/String.class
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
