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From: bugzilla@apache.org
To: tomcat-dev@jakarta.apache.org
Subject: DO NOT REPLY [Bug 38389]  New:  - java.util.Arrays.Sort() crashes
 with AbstractMethodError when compiled using JDT,
 but works OK when compiled with ant
Message-ID: <bug-38389-78@http.issues.apache.org/bugzilla/>
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http://issues.apache.org/bugzilla/show_bug.cgi?id=38389

           Summary: java.util.Arrays.Sort() crashes with AbstractMethodError
                    when compiled using JDT, but works OK when compiled with
                    ant
           Product: Tomcat 5
           Version: 5.5.14
          Platform: Other
        OS/Version: Windows 2000
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Unknown
        AssignedTo: tomcat-dev@jakarta.apache.org
        ReportedBy: paul@2hv.nl


I'm actually using Tomcat 5.5.15, but I could't select it in the list. But I've 
also got this problem with 5.5.12.

I've got the following awfully simple JSP:
---------------------------------------------
<%@ page import="java.util.Arrays,java.util.Comparator" %>
<%
  MyClass[] list = new MyClass[2];
  list[0] = new MyClass();
  list[1] = new MyClass();
  Arrays.sort(list,new Comparator<MyClass>()
            {
              public int compare(MyClass mo1, MyClass mo2)
              {
                return -1; // whatever
              }
            });
%>
<%!
  public class MyClass
  {
    String text = "blah";
    public String getText() { return text; }
  }
%>
---------------------------------------------
It compiles fine, but when executed it crashes like this:

java.lang.AbstractMethodError: org.apache.jsp.error_jsp$1.compare
(Ljava/lang/Object;Ljava/lang/Object;)I
	at java.util.Arrays.mergeSort(Arrays.java:1284)
	at java.util.Arrays.sort(Arrays.java:1223)
	at org.apache.jsp.error_jsp._jspService(org.apache.jsp.error_jsp:64)
        ...more...

At first I thought it's a JDK error, but when I replace Tomcat's jasper-
compiler-jdt.jar by an Ant-compiler jar, the code runs fine !!

The above code also runs fine when I replace "MyClass" by "Object" in the 
Comparator definition, but this is ofcourse not what Java 5 is about :-)

I've already updated to Suns JDK 1.5.0_06, but that didn't change anything.

Any clues? Tanx!

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