Semantic Error: invalid string class

Hi, I upgraded my jdk from 1.4.2.12 to 1.5.0.12. but everytime i try to compile, the error message: "Semantic Error: A candidate for 'String' was found, but it is invalid and needs to be fixed before this type will successfully compile." any thoughts on what to do? thanks!

[sidekick Sarcastic]
kinda helps if you could show us the String that the error was pointing to. I dunno, it may kinda sorta help us figure it out, perhaps.
[sidekick Sarcastic]
With code tags :)

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I went into the j2me_cldc/build/linux directory and did this.
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make[3]: Leaving directory `/opt/j2me_cldc/tools/jcc'
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"Rob Weltman" <[email protected]> wrote:
>
For starters, I took the sample file examples.security.jaas.SampleConfig, changed the name and
package, compiled, and copied it to the right place in the classes directory of the webapp project.
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TES 5.3.1 sacmd modrule -J " class name " returns invalid job class argument

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I have some pretty extensive experience with CMD line...you need quotes when you have values with spaces. This is true of MODRULE and other CMD line Commands
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Error: invalid job class argument
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Error: invalid job class argument
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Request sent to Master.
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Syntax error on token "class", invalid Expression

Hai,
i am new to java beans and i have written the following code which gives an error
Code jsp:
<%@ page contentType="text/html; charset=iso-8859-1" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>beancode</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>

Name: <input type="text" name ="nname"> <br><br><br>
Address: <input type="text" name ="naddress"> <br><br><br>
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<% useBean id="sampl"; class="beancode.class"; scope="page"; %>
<% setProperty name="sampl"; property="*"; %>
<%--</jsp:useBean> --%>
<table border="1">
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<%
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%>
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<%
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%>               </td>
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<%                     out.println(name);
%>                </td>
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<%                     out.print(address);
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%>               </td>
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<%          }
%>
     </table>

</body>
</html>
JAVA Class code:
import java.sql.*;
* @author
public class beancode
private String employid;
private Connection con = null;
// private ResultSet rs = null;
private PreparedStatement st = null;
String name, address;
/** Creates a new instance of beancode */
public beancode()
{ok
try
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          ResultSet rs = s.executeQuery ("Select * FROM Test");
catch(Exception e)
          System.out.println(e.getMessage());
public void setemployid(String nname,String naddress)
          name = nname;
          address = naddress;
     public String getemployid()
          return(name);
     public String getemployadd()
          return(address);
public void insert()
try
String s1="insert into samp values('"+name+"','"+address+"')";
st = con.prepareStatement(s1);
st.executeUpdate();
st.clearParameters();
st.close();
catch(Exception m)
     public static void main(String args[])
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The error
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 18 in the jsp file: /bean.jsp
Generated servlet error:
Syntax error on token "class", invalid Expression
     org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
     org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
     org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:397)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:288)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:556)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:293)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
PLEASE HELP ME OUT
I AM WAITING PLEASE
Thanks,
Shasi

You can try to use the xml form of tag use bean and not <% like this:
<jsp:useBean id="sampl" class="beancode" scope="page" />
<jsp:setProperty name="sampl"; property="*" />
and in the class attribute specify the fully qualified class name without the extension

ERROR reports.reportdefinition : com.crystaldecisions.reports.queryengine.driverImpl.m: JDBC Error: [Microsoft][ODBC Driver Manager] Invalid string or buffer length

I have developed Java web application which uses Crystal Report 2013 , java 1.6 , Windows 32 bit System, All the reports are loading fine in the Following environment
Development Environment
Windows7 Professional Service pack 1 -32 bit
Java - 1.6
Internet Explorer 11
Oracle Client 10g 32 bit ODBC driver
Testing Environment
Windows Server 2008 R2 Enterprise - 64 bit
java 1.6
Internet Explorer 9
Oracle Client 11g 62 bit ODBC driver
While loading reports in the 64 bit server the error occurs
ERROR reports.reportdefinition : com.crystaldecisions.reports.queryengine.driverImpl.m: JDBC Error: [Microsoft][ODBC Driver Manager] Invalid string or buffer length
ERROR dataengine.datasource : Failed to read next recurring database record: database row set error.
com.crystaldecisions.reports.reportdefinition.datainterface.j: JDBC Error: [Microsoft][ODBC Driver Manager] Invalid string or buffer length
    at com.crystaldecisions.reports.reportdefinition.datainterface.q.a(Unknown Source)
    at com.crystaldecisions.reports.dataengine.n.m(Unknown Source)
    at com.crystaldecisions.reports.dataengine.n.l(Unknown Source)
    at com.crystaldecisions.reports.dataengine.n.bn(Unknown Source)
    at com.crystaldecisions.reports.dataengine.n.bp(Unknown Source)
    at com.crystaldecisions.reports.dataengine.n.else(Unknown Source)
    at com.crystaldecisions.reports.dataengine.s.a(Unknown Source)
    at com.crystaldecisions.reports.dataengine.bk.a(Unknown Source)
    at com.crystaldecisions.reports.dataengine.bk.ab(Unknown Source)
    at com.crystaldecisions.reports.dataengine.bk.<init>(Unknown Source)
    at com.crystaldecisions.reports.dataengine.bk.if(Unknown Source)
    at com.crystaldecisions.reports.dataengine.bk.a(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.bv.a(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.bv.a(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.be.a(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.be.h(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.i.h(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.be.for(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.bt.a(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.bv.a(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.bv.a(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.bf.a(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.cd.for(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.cd.for(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.b3.for(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.bt.a(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.cd.a(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.cd.a(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.cd.a(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.ca.a(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.a9.a(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.e.m.a(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.cd.for(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.cd.for(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.objectformatter.b3.for(Unknown Source)
    at com.crystaldecisions.reports.formatter.formatter.e.m.for(Unknown Source)
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    at com.crystaldecisions.reports.formatter.a.c.a(Unknown Source)
    at com.crystaldecisions.reports.formatter.a.c.if(Unknown Source)
    at com.crystaldecisions.reports.formatter.a.c.a(Unknown Source)
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    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
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    at sun.jdbc.odbc.JdbcOdbcResultSet.getDataString(Unknown Source)
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A few things to note:
1) Crystal Report 2013 doe snot install any SDK. Thus the assumption is that you are using CR from teh following link:
SAP BusinessObjects - SAP Crystal Reports, Version For Eclipse Download
2) Since you are using a 64 bit connection (Oracle Client 11g 62 bit ODBC driver) you will have to make sure you are using 64 bit JVM. Otherwise, follow Dell's advice and use a 32 bit ODBC datasource.
3) On one test you are using Oracle Client 10g 32 bit ODBC driver and the other you are using Oracle Client 11g 64 bit ODBC driver. You might want to see if you can run your app using Client 11g 32 bit ODBC driver.
- Ludek
Senior Support Engineer AGS Product Support, Global Support Center Canada

Error: invalid file 'java/lang/Object.class' (wrong version: 48, expected 4

hi all
ive installed jdk1.4.1 from jdk1.3 .
When i try to compile a java file i get this error.
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anyone has any idea abt this.
im stuck :( pls help.
thanks
Jan

Did you uninstall 1.3 completely? Completely in the sense both jdk and jre.
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Sudha

Error: java.sql.SQLException: Internal Error Invalid Connect String

hi,
facing errror while deploying the process
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at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.evermind.server.ejb.interceptor.joinpoint.EJBJoinPointImpl.invoke(EJBJoinPointImpl.java:35)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
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at com.evermind.server.ThreadState.runAs(ThreadState.java:693)
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at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:462)
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at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:518)
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at oracle.security.jazn.oc4j.JAZNFilter$1.run(JAZNFilter.java:400)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
at oracle.security.jazn.oc4j.JAZNFilter.doFilter(JAZNFilter.java:414)
at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:623)
at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)
at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:871)
at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)
at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:221)
at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:122)
at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:111)
at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:234)
at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:29)
at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:879)
at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.sql.SQLException: Internal Error:Invalid Connect String
at oracle.lite.poljdbc.POLJDBCErrMsg.throwSQLException(Unknown Source)
at oracle.lite.poljdbc.LiteThinJDBCConnection.<init>(Unknown Source)
at oracle.lite.poljdbc.LiteThinJDBCFactory.createConnection(Unknown Source)
at oracle.lite.poljdbc.POLJDBCConnection.<init>(Unknown Source)
at oracle.lite.poljdbc.OracleConnection.<init>(Unknown Source)
at oracle.lite.poljdbc.POLJDBCDriver.connect(Unknown Source)
at oracle.oc4j.sql.DriverDataSource.getConnection(DriverDataSource.java:116)
at oracle.oc4j.sql.DriverDataSource.getConnection(DriverDataSource.java:75)
at oracle.oc4j.sql.DataSourceConnectionPoolDataSource.getPooledConnection(DataSourceConnectionPoolDataSource.java:57)
at oracle.oc4j.sql.xa.EmulatedXADataSource.getXAConnection(EmulatedXADataSource.java:92)
at oracle.oc4j.sql.spi.ManagedConnectionFactoryImpl.createXAConnection(ManagedConnectionFactoryImpl.java:211)
at oracle.oc4j.sql.spi.ManagedConnectionFactoryImpl.createManagedConnection(ManagedConnectionFactoryImpl.java:170)
at com.evermind.server.connector.ApplicationConnectionManager.createManagedConnection(ApplicationConnectionManager.java:1398)
at oracle.j2ee.connector.ConnectionPoolImpl.createManagedConnectionFromFactory(ConnectionPoolImpl.java:327)
at oracle.j2ee.connector.ConnectionPoolImpl.access$800(ConnectionPoolImpl.java:98)
at oracle.j2ee.connector.ConnectionPoolImpl$FixedWaitPoolingScheme.getManagedConnection(ConnectionPoolImpl.java:1455)
at oracle.j2ee.connector.ConnectionPoolImpl.getManagedConnection(ConnectionPoolImpl.java:785)
at oracle.oc4j.sql.ConnectionPoolImpl.getManagedConnection(ConnectionPoolImpl.java:45)
at com.evermind.server.connector.ApplicationConnectionManager.getConnectionFromPool(ApplicationConnectionManager.java:1596)
at com.evermind.server.connector.ApplicationConnectionManager.acquireConnectionContext(ApplicationConnectionManager.java:1541)
at com.evermind.server.connector.ApplicationConnectionManager.allocateConnection(ApplicationConnectionManager.java:1486)
at oracle.j2ee.connector.OracleConnectionManager.unprivileged_allocateConnection(OracleConnectionManager.java:238)
at oracle.j2ee.connector.OracleConnectionManager.allocateConnection(OracleConnectionManager.java:192)
at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.java:272)
at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.java:200)
at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.java:142)
at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.java:127)
at com.collaxa.cube.engine.data.ConnectionFactory$ConnectionFactoryImpl.getConnection(ConnectionFactory.java:336)
at com.collaxa.cube.engine.data.ConnectionFactory.getConnection(ConnectionFactory.java:140)
at com.collaxa.cube.engine.adaptors.common.BaseProcessPersistenceAdaptor.storeProcess(BaseProcessPersistenceAdaptor.java:361)
at com.collaxa.cube.engine.adaptors.olite.ProcessPersistenceAdaptor.storeProcess(ProcessPersistenceAdaptor.java:52)
at com.collaxa.cube.engine.data.ProcessPersistenceMgr.storeProcess(ProcessPersistenceMgr.java:76)
at com.collaxa.cube.engine.deployment.DeploymentManager.deployProcess(DeploymentManager.java:937)
at com.collaxa.cube.engine.deployment.DeploymentManager.deploySuitcase(DeploymentManager.java:792)
at com.collaxa.cube.ejb.impl.BPELDomainManagerBean.deploySuitcase(BPELDomainManagerBean.java:455)
... 45 more

You may possibly modified the oc4j-ra.xml file in the stand-alone directory instead of the file under the OC4J_BPEL directory in midtier.
Currently, we are seeing some issues with the sample in midtier. So you may like to wait for the GA release [ mid May] for trying out this sample.
Otherwise please send a mail to [email protected], you need any early drop of this sample.
HTH.
Thanks,
Rakesh

Class format error: Invalid constant pool tag found

I am simply attempting to create an instance of an object and I get Class format error: Invalid constant pool tag found. Does anyone know what this means and how to fix it?
Thanks.

If you're compiling with J2SDK 1.4 or higher, you need to use "-target 1.1" on the javac command line.
Also make sure you're not using any float constants such as 1.0 in your code.

Import JavaBean Error : Invalid Class

previously , i have 3 commandbean class , after that i add another 2 commandbean class,
i hit the following error,
Invalid Class -JavaBean not available for import class
:net/solutions/model/ExternalToGateway
Jar: c:\documents and settings\yzme\sap\workspace\SmsGatewaywebdynpro\lib\SmsGatewayCommandBean.jar
Message was edited by:
yzme yzme
Message was edited by:
yzme yzme

Hi yzme yzme,
These problems occur when you are not following the specification for the java Beans that the netweaver platform expects:
Please check the following for eradicating the error:
1. Is there a setter which doe'snt have a consequent getter for the variable.If so provide it because its considered mandatory from the bean Specs.
2.If you have used your own methods for fetching and setting the value rather then using the getter setter for the same this will give a generational error on import.
Above listed mistakes are made by developers ona regular basis. Please go through the java bean specs on sun.java.com for more details
Regards
Amit
Allocate points if found Helpful.

Statements like 'List String .class' cause error.

Consider the following simple code:
Class<List<String>> cl;
cl=List<String>.class;The first line is valid but the second one causes the "illegal start of expression" error.
That's rather strange: the type
Class<List<String>>is valid itself, but variables of that type cannot be assigned via the ".class" expression.
Is this a bug or I am missing something?
Thanks.

Java generics aren't C++ templates; they don't cause new classes to be created based on parameter type.
What this means is that for types...
List<String> stringList = new ArrayList<String>();
List<Number> numberList = new ArrayList<Number>();...the class of those lists is, in both cases, java.util.ArrayList...
string.getClass().equals(ArrayList.class);
numberList.getClass().equals(ArrayList.class);Neither class ArrayList<String> nor class ArrayList<Number> exist, because such generics information is wiped out at runtime. That's why an expression like...
ArrayList<Number>.class...is illegal.

ERROR: Invalid java version found: while runing Autoconfig

Hi
while upgrading EBS 12.1.3 Database from 11.1.0.7 to 11.2.0.2
We got the below error on autoconfig.
F:\app\mocppd\product\11.2.0\dbhome_1\appsutil>F:\app\mocppd\product\11.2.0\dbho
me_1\appsutil\bin\adconfig.cmd contextfile=prod_srv-moc.xml
Enter the APPS user password: apps
cygwin warning:
MS-DOS style path detected: F:\app\mocppd\product\11.2.0\dbhome_1\appsutil\bin
\adconfig.pl
Preferred POSIX equivalent is: /cygdrive/f/app/mocppd/product/11.2.0/dbhome_1/
appsutil/bin/adconfig.pl
CYGWIN environment variable option "nodosfilewarning" turns off this warning.
Consult the user's guide for more details about POSIX paths:
    http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
The log file for this session is located at: F:\app\mocppd\product\11.2.0\dbhome
_1/appsutil/log/prod_srv-moc/02040321/adconfig.log
AutoConfig is configuring the Database environment...
AutoConfig will consider the custom templates if present.
        Using ORACLE_HOME location : F:\app\mocppd\product\11.2.0\dbhome_1
ERROR: Invalid java version found:
        sh: F:appmocppdproduct11.2.0dbhome_1jdkjre/bin/java: No such file or dir
ectory
ERROR: Invalid java version found:
        sh: F:appmocppdproduct11.2.0dbhome_1jdkjre/bin/java: No such file or dir
ectory
        Classpath                   :
sh: - : invalid option
Usage: sh [GNU long option] [option] ...
        sh [GNU long option] [option] script-file ...
GNU long options:
        --debug
        --debugger
        --dump-po-strings
        --dump-strings
        --help
        --init-file
        --login
        --noediting
        --noprofile
        --norc
        --posix
        --protected
        --rcfile
        --restricted
        --verbose
        --version
        --wordexp
Shell options:
        -irsD or -c command or -O shopt_option          (invocation only)
        -abefhkmnptuvxBCHP or -o option
Version Conflicts among development maintained and customized templates encounte
red; aborting AutoConfig run.
The logfile for this session is located at: F:\app\mocppd\product\11.2.0\dbhome_
1/appsutil/log/prod_srv-moc/02040321/adconfig.logThanks
Nawneet

Hi Helios,
I have changed the prod_srv-moc.xml script and executed the script.
And now i got the below error.
F:\app\mocppd\product\11.2.0\dbhome_1\appsutil>F:\app\mocppd\product\11.2.0\dbho
me_1\appsutil\bin\adconfig.cmd contextfile=prod_srv-moc.xml
Enter the APPS user password: apps
cygwin warning:
MS-DOS style path detected: F:\app\mocppd\product\11.2.0\dbhome_1\appsutil\bin
\adconfig.pl
Preferred POSIX equivalent is: /cygdrive/f/app/mocppd/product/11.2.0/dbhome_1/
appsutil/bin/adconfig.pl
CYGWIN environment variable option "nodosfilewarning" turns off this warning.
Consult the user's guide for more details about POSIX paths:
http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
The log file for this session is located at: F:/app/mocppd/product/11.2.0/dbhome
_1/appsutil/log/prod_srv-moc/02040605/adconfig.log
AutoConfig is configuring the Database environment...
AutoConfig will consider the custom templates if present.
Using ORACLE_HOME location : F:/app/mocppd/product/11.2.0/dbhome_1
Classpath : :F:/app/mocppd/product/11.2.0/dbhome_1/jdb
c/lib/ojdbc6.jar:F:/app/mocppd/product/11.2.0/dbhome_1/appsutil/java/xmlparserv2
.jar:F:/app/mocppd/product/11.2.0/dbhome_1/appsutil/java:F:/app/mocppd/product/1
1.2.0/dbhome_1/jlib/netcfg.jar:F:/app/mocppd/product/11.2.0/dbhome_1/jlib/ldapjc
lnt11.jar
Exception in thread "main" java.lang.NoClassDefFoundError: oracle/apps/ad/tools/
configuration/VersionConflictListGenerator
Caused by: java.lang.ClassNotFoundException: oracle.apps.ad.tools.configuration.
VersionConflictListGenerator
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: oracle.apps.ad.tools.configuration.VersionConflic
tListGenerator. Program will exit.
ERROR: Version Conflicts utility failed.
Terminate.
The logfile for this session is located at: F:/app/mocppd/product/11.2.0/dbhome_
1/appsutil/log/prod_srv-moc/02040605/adconfig.log
Thanks
Nawneet

Random Generator semantic error

I need to create a public class method for a class RandomGenerator called getRandomNumber() which takes a single int argument and returns a random number between 1 and its argument (inclusive) which is generated by sending a suitable nextInt() message to the class variable rand.
This is my code so far.
import java.util.Random;
import ou.*;
* Class RandomGenerator - write a description of the class here.
* @author (your name)
* @version (a version number or a date)
public class RandomGenerator
     /* instance variables */
     private int exampleVar; // replace this example variable with your own
      * Default constructor for objects of class RandomGenerator
     public RandomGenerator()
          super();
     private Random rand = new Random();
    public int getRandomNumber(int num)
        int ranum;
        String StringNum;
        StringNum = OUDialog.request("Please enter a number");
        num = Integer.parseInt(StringNum);
        if (num <=0)
        StringNum = OUDialog.request("Please enter a positive integer");
        return
        ranum = rand.nextInt(num);
        When I test it I get the error 'Semantic error: Cannot reach instance method: getRandomNumber( int ) from static context: RandomGenerator'
I don't understand what the error means.

When calling methods, you can either call the method on an object (an instance of a class), or directly on the class. Calling a method directly on the class assumes that the method is static, which means that the method is shared among all instances of the class, rather than each instance having it's own version.
For instance, this line in your code:
num = Integer.parseInt(StringNum);You called the parseInt() method of the Integer class statically, because parseInt() is a static method. You don't need a previous integer value to call parseInt(). Now the Integer class also has a method called intValue() which returns the current value of the Integer as an int. Obviously, if there's no int value stored in the integer, calling that method would be useless:
Integer.intValue(); //no value to return
Integer anInteger = new Integer(3);
int anInt = anInteger.intValue(); //returns 3So since your getRandomNumber() method is not static, you must have an instance of the RandomGenerator class to call it on, like the post above shows.

Invalid Valuation Class for Plant

Hello,
I'm creating a material using t-code MM01, and when I enter a valuation class in the Accounting 1 view, I get error message ZA 038 "Invalid valuation class for this plant". This valuation class was working before, so I want to look into the configuration to see what may have been changed. Can anyone point me in the right direction?
Thanks,
Cynthia

Hi,
the message u got is custom defined message.
The reason for the designing the message may be that the material that u want to create is not to be meant for the plant u used.
i hope this will solve the issue.
Thank You,
Purnachandra RM

Semantic Error: invalid string class

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