JNI - Java code executed before native code

Hi there, I'm having a problem, I've got this native thing working but it seems like my java code is being executed before the native one. Example :
class Hello
{ static { System.loadLibrary("D1"); }
public native void displayHello();
public static void main(String[] args)
new Hello().displayHello();
System.out.println("kfdhgkfldh");
The output is:
"kfdhgkfldh"
"Message from JNI"
So the printfunction from the main has been executed before the one in my C++ program
Any idea why ??
(this is quite important)
thx

Tryfflush(stdin);before returning from the native function

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# A fatal error has been detected by the Java Runtime Environment:
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0351fe3b, pid=1664, tid=3832
# JRE version: 6.0_20-b02
# Java VM: Java HotSpot(TM) Client VM (16.3-b01 mixed mode, sharing windows-x86 )
# Problematic frame:
# C [zkemsdk.dll+0xfe3b]
# If you would like to submit a bug report, please visit:
# http://www.java.net/external?url=http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
--------------- T H R E A D ---------------
Current thread (0x003a9000): JavaThread "main" [_thread_in_native, id=3832, stack(0x008c0000,0x00910000)]
siginfo: ExceptionCode=0xc0000005, reading address 0x00000106
Registers:
EAX=0x0090f7c4, EBX=0x00000001, ECX=0x00000000, EDX=0x00000001
ESP=0x0090f7b4, EBP=0x0090f848, ESI=0x00000096, EDI=0x003a9000
EIP=0x0351fe3b, EFLAGS=0x00010216
Top of Stack: (sp=0x0090f7b4)
0x0090f7b4: 00000000 0090f930 000003fc 00000103
0x0090f7c4: 0090f800 6d9532d0 373e92a0 00912ec5
0x0090f7d4: 00000401 0090f7d8 369860d1 0090f800
0x0090f7e4: 37390050 00000000 37390f90 00000000
0x0090f7f4: 0090f800 0090f930 003a9000 0090f830
0x0090f804: 10008fd8 0090f840 0090f930 00000008
0x0090f814: 0090f88c 0090fa28 0090f8f4 0090f848
0x0090f824: eb53f637 0351ffdc 00000096 00000003
Instructions: (pc=0x0351fe3b)
0x0351fe2b: 0f 53 50 8d 44 24 18 50 e8 58 7c 00 00 83 c4 0c
0x0351fe3b: 8b 4e 70 51 8b 0e 83 c3 04 53 6a 64 8d 54 24 18
Stack: [0x008c0000,0x00910000], sp=0x0090f7b4, free space=13d0090f2e8k
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C [zkemsdk.dll+0xfe3b]
C [jna5972695927945545932.tmp+0x9182]
C [jna5972695927945545932.tmp+0x2161]
C [jna5972695927945545932.tmp+0x2849]
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j com.sun.jna.Function.invoke([Ljava/lang/Object;Ljava/lang/Class;)Ljava/lang/Object;+90
j com.sun.jna.Function.invoke(Ljava/lang/Class;[Ljava/lang/Object;Ljava/util/Map;)Ljava/lang/Object;+194
j com.sun.jna.Library$Handler.invoke(Ljava/lang/Object;Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;+344
j $Proxy0.Z_Beep(J)Z+19
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v ~StubRoutines::call_stub
V [jvm.dll+0xf049c]
V [jvm.dll+0x17fcf1]
V [jvm.dll+0xf051d]
V [jvm.dll+0xf9bc5]
V [jvm.dll+0x10181d]
C [javaw.exe+0x2155]
C [javaw.exe+0x8614]
C [kernel32.dll+0xb729]
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j com.sun.jna.Function.invoke([Ljava/lang/Object;Ljava/lang/Class;)Ljava/lang/Object;+90
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--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
0x02b10c00 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=1976, stack(0x02dc0000,0x02e10000)]
0x02b0a400 JavaThread "CompilerThread0" daemon [_thread_blocked, id=1280, stack(0x02d70000,0x02dc0000)]
0x02b08c00 JavaThread "Attach Listener" daemon [_thread_blocked, id=1984, stack(0x02d20000,0x02d70000)]
0x02b07800 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=2160, stack(0x02cd0000,0x02d20000)]
0x02b02400 JavaThread "Finalizer" daemon [_thread_blocked, id=2052, stack(0x02c80000,0x02cd0000)]
0x02afd800 JavaThread "Reference Handler" daemon [_thread_blocked, id=752, stack(0x02c30000,0x02c80000)]
=>0x003a9000 JavaThread "main" [_thread_in_native, id=3832, stack(0x008c0000,0x00910000)]
Other Threads:
0x02afc400 VMThread [stack: 0x02be0000,0x02c30000] [id=1504]
0x02b1b800 WatcherThread [stack: 0x02e10000,0x02e60000] [id=1980]
VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: None
Heap
def new generation total 4928K, used 2455K [0x22970000, 0x22ec0000, 0x27ec0000)
eden space 4416K, 55% used [0x22970000, 0x22bd5db0, 0x22dc0000)
from space 512K, 0% used [0x22dc0000, 0x22dc0000, 0x22e40000)
to space 512K, 0% used [0x22e40000, 0x22e40000, 0x22ec0000)
tenured generation total 10944K, used 0K [0x27ec0000, 0x28970000, 0x32970000)
the space 10944K, 0% used [0x27ec0000, 0x27ec0000, 0x27ec0200, 0x28970000)
compacting perm gen total 12288K, used 343K [0x32970000, 0x33570000, 0x36970000)
the space 12288K, 2% used [0x32970000, 0x329c5f20, 0x329c6000, 0x33570000)
ro space 10240K, 51% used [0x36970000, 0x36e9ae00, 0x36e9ae00, 0x37370000)
rw space 12288K, 54% used [0x37370000, 0x37a072d8, 0x37a07400, 0x37f70000)
Dynamic libraries:
0x00400000 - 0x00424000 C:\Program Files\Java\jre6\bin\javaw.exe
0x7c900000 - 0x7c9b2000 C:\WINDOWS\system32\ntdll.dll
0x7c800000 - 0x7c8f6000 C:\WINDOWS\system32\kernel32.dll
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0x7e410000 - 0x7e4a1000 C:\WINDOWS\system32\USER32.dll
0x77f10000 - 0x77f59000 C:\WINDOWS\system32\GDI32.dll
0x76390000 - 0x763ad000 C:\WINDOWS\system32\IMM32.DLL
0x7c340000 - 0x7c396000 C:\Program Files\Java\jre6\bin\msvcr71.dll
0x6d800000 - 0x6da97000 C:\Program Files\Java\jre6\bin\client\jvm.dll
0x76b40000 - 0x76b6d000 C:\WINDOWS\system32\WINMM.dll
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0x76bf0000 - 0x76bfb000 C:\WINDOWS\system32\PSAPI.DLL
0x6d7f0000 - 0x6d7ff000 C:\Program Files\Java\jre6\bin\zip.dll
0x68000000 - 0x68036000 C:\WINDOWS\system32\rsaenh.dll
0x77c10000 - 0x77c68000 C:\WINDOWS\system32\msvcrt.dll
0x769c0000 - 0x76a74000 C:\WINDOWS\system32\USERENV.dll
0x5b860000 - 0x5b8b5000 C:\WINDOWS\system32\netapi32.dll
0x6d610000 - 0x6d623000 C:\Program Files\Java\jre6\bin\net.dll
0x71ab0000 - 0x71ac7000 C:\WINDOWS\system32\WS2_32.dll
0x71aa0000 - 0x71aa8000 C:\WINDOWS\system32\WS2HELP.dll
0x71a50000 - 0x71a8f000 C:\WINDOWS\System32\mswsock.dll
0x76f20000 - 0x76f47000 C:\WINDOWS\system32\DNSAPI.dll
0x76d60000 - 0x76d79000 C:\WINDOWS\system32\iphlpapi.dll
0x76fb0000 - 0x76fb8000 C:\WINDOWS\System32\winrnr.dll
0x76f60000 - 0x76f8c000 C:\WINDOWS\system32\WLDAP32.dll
0x76fc0000 - 0x76fc6000 C:\WINDOWS\system32\rasadhlp.dll
0x10000000 - 0x10052000 C:\Documents and Settings\bkonwar\Local Settings\Temp\jna5972695927945545932.tmp
0x03510000 - 0x03546000 C:\WINDOWS\system32\zkemsdk.dll
0x03560000 - 0x03574000 C:\WINDOWS\system32\commpro.dll
0x662b0000 - 0x66308000 C:\WINDOWS\system32\hnetcfg.dll
0x71a90000 - 0x71a98000 C:\WINDOWS\System32\wshtcpip.dll
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jvm_args: -Dfile.encoding=Cp1252
java_command: com.xyz.bhabs.fingerPrint
Launcher Type: SUN_STANDARD
Environment Variables:
PATH=C:/Program Files/Java/jre6/bin/client;C:/Program Files/Java/jre6/bin;C:/Program Files/Java/jre6/lib/i386;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;;C:\Program Files\Java\jre1.6.0_07\bin;C:\Program Files\Android\android-sdk-windows\tools;C:\Program Files\TortoiseSVN\bin
USERNAME=BKonwar
OS=Windows_NT
PROCESSOR_IDENTIFIER=x86 Family 6 Model 15 Stepping 13, GenuineIntel
--------------- S Y S T E M ---------------
OS: Windows XP Build 2600 Service Pack 3
CPU:total 2 (2 cores per cpu, 1 threads per core) family 6 model 15 stepping 13, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3
Memory: 4k page, physical 2085780k(1286036k free), swap 4024188k(3249652k free)
vm_info: Java HotSpot(TM) Client VM (16.3-b01) for windows-x86 JRE (1.6.0_20-b02), built on Apr 12 2010 13:52:23 by "java_re" with MS VC++ 7.1 (VS2003)
time: Wed May 25 10:02:24 2011
elapsed time: 21 seconds
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Executing a DDL statement from java code

Hi all,
this is code from jdev11.1.1.3 version. I am trying to execute a DDL statement in oracle db from java code, but "ORA-00900: invalid SQL statement" error is coming.
I am trying to create a table in same schema in same db by using 'Copy' command.
Same DDL command is executing from sql command prompt & table is being created. Plz help me , as how to do from java?
        public String cmb_action() {
        // Add event code here...
        try {
            //getting source db connection
            InitialContext initialContext = new InitialContext();
            DataSource ds = (DataSource) initialContext.lookup("java:comp/env/jdbc/SourceConnDS");
            Connection sourceconn = ds.getConnection();
            sourceconn.setAutoCommit(false);
            String sql = "Copy from myschema/mypass@DB insert t_dept using select * from dept;"
            Statement stat = sourceconn.createStatement();
            stat.executeUpdate(sql);
            sourceconn.commit();
            System.out.println("done");
          catch (Exception ne) {
            // TODO: Add catch code
            ne.printStackTrace();
        return null;
    }

I have a requirement to transfer data from one db to another db from Java Application Layer.Maybe, maye not. We get all sorts of weird "requirements" - which are nothing but thoughts or proposed solutions.
But,
Did the "requirement" mention whether the table existed already or not in the target database? - If not, did it tell you to create it - drop/create it?
Did the "requirement" deliver some explanation to why this copying was neeeded? - Are we talking replication? - Or a one time cloning?
Etc, etc,
Personally I would always argue against a "reuirement" like that. - It just isn't the way to do it. Period.
Regards
Peter
P.S: If you are satisfied with what COPY does, then you could let Java make an OS call and do it from there?

Java.lang.NoClassDefFoundError when executing JAVA code

Hy everyone,
Trying to execute some java code through forms I got this error when running my program : java.lang.NoClassDefFoundError : simple (where simple is a java class I developped).
These are the steps I followed:
1- Devopping a simple JAVA class (simple.java) and compiling in JDK 1.4 (for compatibilty with forms 10.1.2.0.2)
2- Creating the JAR file
3- Copying the JAR file in <ORACLE_HOME>\forms\java
4- Adding the adress of the JAR file in CLASSPATH (environment variable of the server)
5- Adding the adress of the JAR file in CLASSPATH (environmental file of OAS default.env)
6- Importing the JAVA class trought forms builder (program>>import java class)
7- Invoking the JAVA class via the PL/SQL packages created by forms builder
8- Running the program
Thanks for your help.
Regards.

In most cases, you should not have to stop and restart OC4J_BI_FORMS to pick such changes. However, since you are having problems, I would ensure that all frmweb processes have been stopped, then stop and restart OC4J_BI_FORMS and retest. If that doesn't work, you should review how you imported the java into your app. Look closely at the Importer options you used and ensure that you have not change the file name at any point. Because you are working with Java, case sensitivity is critical.
Also, where are you seeing the error message? Client java console or in a server side log? If server side, exactly which log file is reporting the problem? I would suggest you post the first 4 ro 5 lines of the error and not just the NoClassDefFound part.

Execute PL/SQL block with named binds from within java code?

Hi guys,
Is there any good way to execute my PL/SQL code, for example
BEGIN         :x := :x+1; END;
from my Java code? I need nothing complicated, just static code block with named binds.
I have tried the Oracle exetnded JDBC (setXXXbyName methods):
public static void main(String[] args){     try {     Class.forName("oracle.jdbc.driver.OracleConnection");     Connection conn=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","user","password"); String SQL="begin :x:=:x+1; end;"; OracleCallableStatement stmt; stmt=(OracleCallableStatement)conn.prepareCall(SQL); stmt.setIntAtName("x", 5); stmt.registerOutParameter("x", Types.INTEGER); stmt.execute(); System.out.println(stmt.getInt("x"));     } catch (Exception x) { x.printStackTrace();    }   }
And get the java.sql.SQLException: operation not allowed: Ordinal binding and Named binding cannot be combined!
Then i've tried SQLJ appoach:
public static void main(String[] args){     try {     Class.forName("oracle.jdbc.driver.OracleConnection");     Connection conn=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","user","password");       Oracle.connect(conn);       System.out.println("Connected!");           int x=3;       #sql { BEGIN         :x := :x+1;       END; };           System.out.println("x=" + x);     } catch (Exception x) { x.printStackTrace();    }   }
And x=3 had retuned... Although 4 expected.
Then, I've set parameter sqlj.bind-by-identifier=true
And result is another exception! java.sql.SQLException: Missing IN or OUT parameter at index:: 2
Can you please mark my mistakes/point to correct solution?
Thanks in advance,
Alexey

Found another solution, this time working at least...
public void testPLSQL() {
       String dynamicSQL=
            "declare\n" +
            " v_CursorID INTEGER;\n" +
            " v_BlockStr VARCHAR2(500);\n" +
            " v_Dummy     INTEGER;\n" +
            " v_x         String(18);\n" +
            "BEGIN\n" +
            " v_CursorID := DBMS_SQL.OPEN_CURSOR;\n" +
            " v_BlockStr :=?;" +
            " DBMS_SQL.PARSE(v_CursorID, v_BlockStr, DBMS_SQL.V7);\n" +
            " v_x:=?;"+
            " DBMS_SQL.BIND_VARIABLE(v_CursorID, ':x', v_x,18);\n" +
            " v_Dummy := DBMS_SQL.EXECUTE(v_CursorID);\n" +
            " DBMS_SQL.VARIABLE_VALUE(v_CursorID, ':x', v_x);\n" +
            " DBMS_SQL.CLOSE_CURSOR(v_CursorID);\n" +
            " ?:=v_x;"+
            " COMMIT;\n" +
            "EXCEPTION\n" +
            " WHEN OTHERS THEN\n" +
            "    DBMS_SQL.CLOSE_CURSOR(v_CursorID);\n" +
            "    RAISE;\n" +
            "END DynamicPLSQL;";
       try {
               Class.forName("oracle.jdbc.driver.OracleConnection");
               Connection conn=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","user", "password");
               System.out.println("Profit");
     String SQL="begin :x:=:x+1; end;";
     OracleCallableStatement stmt;
     stmt=(OracleCallableStatement)conn.prepareCall(dynamicSQL);
     stmt.setString(1, SQL);
     int x=3;
     stmt.setInt(2, x);
     stmt.registerOutParameter(3,     Types.INTEGER);
     stmt.execute();
     x=stmt.getInt(3);
     System.out.println(x);
     assertEquals(4, x);
       } catch (Exception ex) {
            ex.printStackTrace();
            assertTrue(false);
}Now the only thing I need is to code some kind of preprocessor of SQL block, to prepare the dynamicSQL lair for SQL critter...
Please please please show me something less complicated! :8}

Executing Java Code in ODI Procedure

Hi All,
I have following java code which i need to write on ODI procedure but i am not sure which technology to chose (Jython,Sunopsis API or Java BeanShell).
I tried to execute the procedure Jyhton with <% "Java code"%> but getting the error.Any boddy can suggest where i doing wrong.
<%
import javax.naming.Context;
import javax.naming.NamingEnumeration;
import javax.naming.directory.*;
import java.util.Hashtable;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
String userName = "HXXXXXX";
String CN1=null;
String Dis_Name=null;
String Mem_of=null;
String Mail=null;
String SGID=null;
File file = new File("C:/Project/ODI/LDAPID.txt");
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
env.put(Context.PROVIDER_URL, "LDAP://XX.if.YYYY.net:389/OU=XYZ,DC=ZZ,DC=if,DC=XYZ,DC=COM");
env.put(Context.SECURITY_AUTHENTICATION, "simple");
env.put(Context.SECURITY_PRINCIPAL, new String("" + "\\" + userName));
env.put(Context.SECURITY_CREDENTIALS, "");
DirContext ctx = null;
NamingEnumeration results = null;
ctx = new InitialDirContext(env);
SearchControls controls = new SearchControls();
controls.setSearchScope(SearchControls.SUBTREE_SCOPE);
results = ctx.search("", "(objectclass=person)", controls);
FileWriter fw = new FileWriter(file.getAbsoluteFile());
BufferedWriter bw = new BufferedWriter(fw);
   while (results.hasMore())
         SearchResult searchResult = (SearchResult) results.next();
         Attributes attributes = searchResult.getAttributes();
         Attribute attr = attributes.get("cn");
         String cn = (String) attr.get();
         CN1=(String.valueOf(attributes.get("cn")));
         Dis_Name=(String.valueOf(attributes.get("displayName")));
         SGID=(String.valueOf(attributes.get("userPrincipalName")));
         Mem_of=(String.valueOf(attributes.get("memberOf")));
         Mail=(String.valueOf(attributes.get("mail")));
         bw.write(CN1 + " || " + Dis_Name + " || " + SGID + " || " + Mail);
         bw.newLine();
bw.close();
results.close();
ctx.close();
%>
I am getting following error.
The application script threw an exception: java.lang.NullPointerException BSF info: CODE_JAVA at line: 0 column: columnNo
Please suggest what went wrong with the code.
Thanks
Regards

In Jython you don not need to declare the type so String userName = "HXXXXXX"; should simply read userName = "HXXXXXX" . Lots of your code need to be rewritten to work with Jython if you choose that as your technology.

How to call Java script from java code?Can Jscript be executed at server?

Hi All,
We are using 'WebTrends' tool to analyze our site usage pattern.
To use WebTrends, we need to :
1) call Java Script code from the java code
2)Java script has to be executed at server.
Please comment on two points mentioned above. If yes, please let me know how to do them?
Thanks in advnce,
Regards,
Ganga

You can check out Rhino project.
[http://www.mozilla.org/rhino/]

JNI - Java code executed before native code

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