Getting errors in accessing java class through procedures

Question

Hello,
I have written a java stored procedure to execute an exe file, which works fine when compiled.The class code is given below.
create or replace and resolve java source named "CommandExection"
as
import java.io.*;
import java.util.*;
public class CommandExection1 {
public static void Command(String commandline) {
try {
String line;
Process p = Runtime.getRuntime().exec(commandline);
BufferedReader input =
new BufferedReader
(new InputStreamReader(p.getInputStream()));
while ((line = input.readLine()) != null) {
System.out.println(line);
input.close();
catch (Exception err) {
err.printStackTrace();
Through a stored procedure i am acessing the class which is given below,
create or replace procedure Exe_cmd(path in varchar2)
as
language java
name 'CommandExection1.Command(path)';
I am able to create stored procedure sucessfully.But when I run it I am getting the following error.
SQL> exec EXE_cmd('D:exeapp.exe');
BEGIN EXE_cmd('D:exeapp.exe'); END;
ERROR at line 1:
ORA-29531: no method CommandExection1 in class CommandExection1
ORA-06512: at "HGUSER.EXE_CMD", line 1
ORA-06512: at line 1
Please go through the code and help me.
Thanks

Answer 1

Michael,
I did that but I am getting following errors.
java.security.AccessControlException: the Permission (java.io.FilePermission
D:/exeapp.exe execute) has not been granted to SYSTEM. The PL/SQL to grant this
is dbms_java.grant_permission( 'SYSTEM', 'SYS:java.io.FilePermission',
'D:/exeapp.exe', 'execute'
at
java.security.AccessControlContext.checkPermission(AccessControlContext.java:280
at java.security.AccessController.checkPermission(AccessController.java:429)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:528)
at
oracle.aurora.rdbms.SecurityManagerImpl.checkPermission(SecurityManagerImpl.java
:192)
at java.lang.SecurityManager.checkExec(SecurityManager.java:775)
at java.lang.Runtime.exec(Runtime.java:563)
at java.lang.Runtime.exec(Runtime.java:428)
at java.lang.Runtime.exec(Runtime.java:364)
at java.lang.Runtime.exec(Runtime.java:326)
at CommandExection.Command(CommandExection:12)
PL/SQL procedure successfully completed.
I tried to set the privileges using,
EXEC DBMS_JAVA.grant_permission('SCHEMA-NAME', 'java.io.FilePermission', '<<ALL FILES>>', 'read ,write, execute, delete');
EXEC Dbms_Java.Grant_Permission('SCHEMA-NAME', 'SYS:java.lang.RuntimePermission', 'writeFileDescriptor', '');
EXEC Dbms_Java.Grant_Permission('SCHEMA-NAME', 'SYS:java.lang.RuntimePermission', 'readFileDescriptor', '');
but I couldn't. and got some errors like,
SQL> EXEC DBMS_JAVA.grant_permission('HCT', 'java.io.FilePermission', '<<ALL FILES>>', 'read ,write,
execute, delete');
oracle.aurora.vm.IdNotFoundException: -1 is not the number of a user or role
at oracle.aurora.rdbms.SystemSchema.getId(SystemSchema.java:76)
at oracle.aurora.rdbms.SystemSchema.getId(SystemSchema.java:54)
at
oracle.aurora.rdbms.security.PolicyTableManager.findAll(PolicyTableManager.java:
412)
at
oracle.aurora.rdbms.security.PolicyTableManager.find(PolicyTableManager.java:432
at
oracle.aurora.rdbms.security.PolicyTableManager.activate(PolicyTableManager.java
:456)
at
oracle.aurora.rdbms.security.PolicyTableManager.grant(PolicyTableManager.java:50
3)
BEGIN DBMS_JAVA.grant_permission('HCT', 'java.io.FilePermission', '<<ALL FILES>>', 'read ,write, exe
ERROR at line 1:
ORA-29532: Java call terminated by uncaught Java exception:
oracle.aurora.vm.IdNotFoundException: -1 is not the number of a user or role
ORA-06512: at "SYS.DBMS_JAVA", line 313
ORA-06512: at line 1.
What should I do to set the privileges?
Please help me.