Help me out -- java.lang.RuntimeException: Unknown/unsupported charset:


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Thread: Help me out -- java.lang.RuntimeException: Unknown/unsupported charset:

  1. #1
    Join Date
    May 2005
    Posts
    1

    Help me out -- java.lang.RuntimeException: Unknown/unsupported charset:

    Hi,

    Previously our application is running fine in
    iPlanet web server 4 and some times in Tomcat. Now we
    are migrating this application to weblogic 8.1 due to
    some load.
    After migrating to weblogic 8.1 we are getting some
    exception.

    The exception is:

    Servlet failed with Exception
    java.lang.RuntimeException: Unknown/unsupported
    charset: - java.io.UnsupportedEncodingException:
    Charset: '' not recognized, and there is no alias for
    it in the WebServerMBean
    at
    weblogic.servlet.jsp.JspParser.parse(JspParser.java:288)
    at
    weblogic.servlet.jsp.Jsp2Java.outputs(Jsp2Java.java:125)
    ......................................
    ........................

    In my Jsp page we have top declarations like in the
    below:

    <%@ include file="header.jsp" %>
    <%@ page import="com.customer.customercare.servlet.*"
    %>
    <%@ page import="com.customer.customercare.types.*" %>
    <%@ page import="com.customer.customercare.search.*"
    %>
    <%@ page import="com.customer.customercare.utils.*" %>
    <%@ page import="com.customer.customercare.log.*"%>
    <%@ page import="java.util.Date" %>
    <%@ page import="com.customer.customercare.utils.*" %>
    <%@ page
    import="com.customer.customercare.servlet.handler.*"
    %>
    <%@ page import="java.sql.Timestamp"%>
    <%@ page import="java.text.SimpleDateFormat"%>
    <%@ page import="java.util.StringTokenizer"%>
    <%@ page import="java.util.Calendar"%>

    We are not using any charter sets in the above page
    directory but we are using that in a meta tag:

    <meta http-equiv="Content-Type" content="text/html;
    charset=ISO-8859-1">

    This might cause any problem?

    I tried charset=UTF-8, windows-1252 and UTF-16. But i
    am getting the same error.

    The thing is i am not getting this error from the JSP
    page. This jsp page calls a java class, that java
    class has a prepared statement. When the prepared
    statement is executed or before execution, this error is thrown on weblogic console. That
    error is not related to SQL.

    I think "charset" exception means it should come in JSP only. But i don't know why it is

    coming in the java class? i am confused?

    I don't know why exactly that error is coming...?

    My application is compiled in JDK1.3.1_08 and running
    in weblogic 8.1 which internally uses JDK1.4. Is this
    because of version problem?
    I am creating the .war file from the command prompt
    which path is set to JDK1.3.1_08...

    Can anybody help me out in this problem?


    Thanks and Regards,

    Chandu.

  2. #2
    Join Date
    Nov 2004
    Location
    Norway
    Posts
    1,560

    Haven't used weblogic for ages but....

    My application is compiled in JDK1.3.1_08 and running
    in weblogic 8.1 which internally uses JDK1.4.
    Chances are that the 8.1 weblogic is utilizing java1.4 specific code so, in
    this state of confusion, the first thing I would have done was to upgrade
    to 1.4, at least just to rule that possibility out.
    eschew obfuscation

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