Name: szC45993 Date: 03/15/97



The Java Virtual Machine, chapter 5 Constant Pool Resolution,
section 5.1.2 Current Class or Interface Loaded by Class Loader, claims:

"If the class file is successfully verified, the class or interface is then prepared (step 3b of $5.1.1) and initialized (step 4 of $5.1.1)."

and section 5.1.1 Current Class or Interface Not Loaded by Class Loader (4), claims:

"If an initializer completes abruptly by throwing some exception E, and if the class of E is not Error or one of its subclasses, then a new instance of the class ExceptionInInitializerError, with E as the argument, is created and used in place of E."

Meanwhile, undermentioned test gives the following result (jdk_1.0.2):
-------------------------------------------------------------------------
...
        Intrmdt INITIALIZING begin
( loadClass: java.lang.String true
( findSystemClass: java.lang.String
) findSystemClass: java.lang.String
( resolveClass: java.lang.String
) resolveClass: java.lang.String
) loadClass: java.lang.String
java.lang.ArithmeticException: / by zero
at javasoft.sqe.tests.vm.constantpool.ClassInterf043.ClassInterf04302.Intrmdt.<clinit>(Intrmdt.java:20)
at java.lang.ClassLoader.resolveClass(ClassLoader.java)
at javasoft.sqe.tests.vm.constantpool.ClassInterf043.ClassInterf04302.myClassLoader.loadClass(ClassInterf04302.java:138)
at javasoft.sqe.tests.vm.constantpool.ClassInterf043.ClassInterf04302.ClassInterf04302.run(ClassInterf04302.java:175)
at javasoft.sqe.tests.vm.constantpool.ClassInterf043.ClassInterf04302.ClassInterf04302.main(ClassInterf04302.java:237)
) resolveClass: javasoft.sqe.tests.vm.constantpool.ClassInterf043.ClassInterf04302.Intrmdt
) loadClass: javasoft.sqe.tests.vm.constantpool.ClassInterf043.ClassInterf04302.Intrmdt
( loadClass: java.lang.Object true
( resolveClass: java.lang.Object
) resolveClass: java.lang.Object
) loadClass: java.lang.Object
********Intrmdt.run*********
0
ERROR3: Error or Exception is not rised when the following situation is descovered: an initializer completes abruptly by throwing some exception E, and the class E is not Error or one of its subclasses!
-------------------------------------------------------------------------

See also 4013899 and 4038613 for a class "not loaded by Class Loader", because of the error reasons in both cases may be equal for a jvm release.


Attention, please, ClassInterf04302.jasm was really used instead of ClassInterf04302.java because of ExceptionInInitializerError was the unknown Error for jdk_1.0.2 javac.

--------------------- ClassInterf04302.java
//File: @(#)ClassInterf04302.java 1.1 97/03/03
//Copyright 03/03/97 Sun Microsystems, Inc. All Rights Reserved

package javasoft.sqe.tests.vm.constantpool.ClassInterf043.ClassInterf04302;

import java.io.PrintStream;
import java.io.*;
import java.lang.*;
import java.util.*;
import java.awt.*;

interface Inter {
    int intrmdtprc(PrintStream out);
}

class myClassLoader extends java.lang.ClassLoader {
  Hashtable cache = new Hashtable();

  private byte loadClassData(String name)[] {
String str_1,str_2,str1 = "",str2 = "/javasoft/sqe/tests/vm/constantpool/ClassInterf043/ClassInterf04302/";
File fl1;
FileInputStream fl3;
byte bt[];
int length;
int index = 0;
Properties prpr = System.getProperties();

str_1 = prpr.getProperty("java.class.path");
str2 = str2.concat(name);
str2 = str2.concat(".class");
str1 = str1.concat(str_1.substring(str_1.indexOf(":")+1));
try{
index = str_1.indexOf(":");
str_1 = str_1.substring(0,index);
} catch (Exception e) {ClassInterf04302.o.println(e);return null;};
str_2 = str_1.concat("/javasoft/sqe/tests/vm/constantpool/ClassInterf043/ClassInterf04302/Intrmdt.class");
str_1 = str_1.concat(str2);

while (true) {
fl1 = new File(str_2);
if (fl1.isFile()) {
break;
} else {
str_1 = "";
try{
index = str1.indexOf(":");
str_1 = str_1.concat(str1.substring(0,index));
} catch (Exception e) {ClassInterf04302.o.println(e);return null;};
str1 = str1.substring(str1.indexOf(":")+1);
str_2 = str_1.concat("/javasoft/sqe/tests/vm/constantpool/ClassInterf043/ClassInterf04302/Intrmdt.class");
str_1 = str_1.concat(str2);
}
}

try{
fl3 = new FileInputStream(str_1);
length = fl3.available();
bt = new byte[length];
fl3.read(bt);
fl3.close();


} catch (java.io.IOException e) {ClassInterf04302.o.println(e);return null;};

return bt;

  }

  public synchronized Class loadClass(String name, boolean resolve) {
Class c = (Class) cache.get(name);
String s1 = "Intrmdt";
String s2 = "clss";
String s3 = "ClassInterf04302";
String s4 = "Runnable";
String s5 = "suclss";
String name1;

ClassInterf04302.o.println("( loadClass: "+name+" "+resolve);
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("#");
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat(name);
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat(" ");
if (resolve) {
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("true");
} else {
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("false");
}
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("#:loadClass enter#");

if (name.indexOf(s1) != -1) {
name1 = s1;
} else if (name.indexOf(s5) != -1) {
name1 = s5;
} else if (name.indexOf(s2) != -1) {
name1 = s2;
} else {
name1 = name;
}

if (name1.indexOf(".") != -1) {
if (c == null) {
try{
ClassInterf04302.o.println("( findSystemClass: "+name);
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("#");
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat(name);
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("#:findSystemClass enter#");
c = findSystemClass(name1);
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("#");
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat(name);
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("#:findSystemClass exit#");
ClassInterf04302.o.println(") findSystemClass: "+name);
}
catch (java.lang.ClassNotFoundException e) {
ClassInterf04302.o.println(e);
return null;
};
cache.put(name, c);
}
} else {
if (c == null) {
byte data[] = loadClassData(name1);
ClassInterf04302.o.println("( defineClass: "+name);
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("#");
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat(name);
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("#:defineClass enter#");
c = defineClass(data,0,data.length);
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("#");
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat(name);
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("#:defineClass exit#");
ClassInterf04302.o.println(") defineClass: "+name);
cache.put(name, c);
}
}
if (resolve) {
ClassInterf04302.o.println("( resolveClass: "+name);
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("#");
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat(name);
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("#:resolveClass enter#");
resolveClass(c);
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("#");
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat(name);
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("#:resolveClass exit#");
ClassInterf04302.o.println(") resolveClass: "+name);
}

ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("#");
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat(name);
ClassInterf04302.loadedname = ClassInterf04302.loadedname.concat("#:loadClass exit#");
ClassInterf04302.o.println(") loadClass: "+name);
return c;
  }

}

public class ClassInterf04302 {

  public static String loadedname = "";
  public static String strnm = "";
  public static PrintStream o;

  public static int run(String argv[], PrintStream out) {
myClassLoader mcl = new myClassLoader();
Class cl2 = null;
Runnable r;
int index1;
int index2;
int flg = 2;
String str = "";

o = out;

try{

out.println("********ClassInterf04302.run*********");

cl2 = mcl.loadClass("javasoft.sqe.tests.vm.constantpool.ClassInterf043.ClassInterf04302.Intrmdt", true);

r = (Runnable) cl2.newInstance();
r.run();

}
catch (java.lang.ExceptionInInitializerError e) {
// catch (java.lang.ArithmeticException e) {
out.println("********111111111111111111*********");
out.println(e);
index1 = loadedname.indexOf("Intrmdt INITIALIZING begin");
index2 = loadedname.indexOf("Intrmdt INITIALIZING end");
if (index1 == -1 || index2 != -1) {
out.println("ERROR1: ExceptionInInitializerError must be rised on the initializing stage!");
return 2;
}
return 0;
}
catch (java.lang.NoClassDefFoundError e) {
out.println("********222222222222222222*********");
out.println(e);
flg = 1;
}
catch (java.lang.IllegalAccessException e) {
out.println("********333333333333333333*********");
out.println(e);
flg = 1;
}
catch (java.lang.InstantiationException e) {
out.println("********444444444444444444*********");
out.println(e);
flg = 1;
}
catch (java.lang.Exception e) {
out.println("********555555555555555555*********");
out.println(e);
flg = 1;
}
catch (java.lang.Error e) {
out.println("********666666666666666666*********");
out.println(e);
flg = 1;
};


if (flg == 1) {
out.println("ERROR2: None ExceptionInInitializerError is rised if the following situation is descovered: an initializer completes abruptly by throwing some exception E, and the class E is not Error or one of its subclasses!");
} else {
out.println("ERROR3: Error or Exception is not rised when the following situation is descovered: an initializer completes abruptly by throwing some exception E, and the class E is not Error or one of its subclasses!");
return 2;
}
index1 = loadedname.indexOf("Intrmdt INITIALIZING begin");
index2 = loadedname.indexOf("Intrmdt INITIALIZING end");
if (index1 == -1 || index2 != -1) {
out.println("ERROR4: Error or Exception must be rised on the initializing stage!");
}
out.println("-----"+loadedname+"-----");
return 2;

  }

  public static void main(String argv[]) {
System.exit(run(argv, System.out) + 95/*STATUS_TEMP*/);
  }
}
--------------------- Intrmdt.jasm
//File: @(#)Intrmdt.java 1.1 97/03/03
//Copyright 03/03/97 Sun Microsystems, Inc. All Rights Reserved

package javasoft.sqe.tests.vm.constantpool.ClassInterf043.ClassInterf04302;

import java.io.PrintStream;
import java.lang.*;

public class Intrmdt implements Runnable{

static int i1 = 1;
static int i2 = 2;
static int i3 = 3;
static int i;

static {
 ClassInterf04302.o.println(" Intrmdt INITIALIZING begin");
 ClassInterf04302.loadedname = (ClassInterf04302.loadedname).concat("Intrmdt INITIALIZING begin");

i = 1 / (i3 - (i1 + i2)); //java.lang.ArithmeticException: / by zero

 ClassInterf04302.loadedname = (ClassInterf04302.loadedname).concat("Intrmdt INITIALIZING end");
 ClassInterf04302.o.println(" Intrmdt INITIALIZING end");
}

  public void run() {
ClassInterf04302.o.println("********Intrmdt.run*********");
ClassInterf04302.o.println(i);
  }

}
---------------------

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