Why rmic command in Linux gives NullPointerException
Hiii
I have a problem in RMI on Linux
I whenever i am trying to create Stubs on Linux using rmic it's giving NULLPOINTEREXCEPTION..
so please can anybody tell me why it's happeneing..
my command was
rmic ChatterImpl
Markus Waldorf wrote:
Test 1: mv renamed the file to * *.txt*. Does this mean wildcard operations are not possible anymore? Never renamed while moving - feels "+unsafe+". Like talking on a mobile while driving. :-)
Test 2: Instead of overwriting the test directory, it moved test_test directory inside the existing test. Is this correct?Think so. You need to qualify using "scope" to move the contents of a directory as oppose to the directory itself. So instead of moving "<i>dirname</i>" itself, specify it as "<i>dirname/*</i>" instead.
E.g.
/home/billy> mkdir test
/home/billy> touch test/file1
/home/billy> ll test
total 0
-rw-r--r-- 1 billy billy 0 2010-09-21 11:51 file1
/home/billy>
/home/billy> mkdir test2
/home/billy>
/home/billy> mv test/* test2
/home/billy> ll test2
total 0
-rw-r--r-- 1 billy billy 0 2010-09-21 11:51 file1
/home/billy>
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[Java Class/Source Path Diagram]
Ejb3ToIdlApp\
|---ejbModule
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| | IHello.java (*Interface)
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@Override
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* @param args
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java weblogic.rmic -idl ejbModule.hello.Hello
[execution result]
Class not found : ejbModule.hello.Hello
ejbModule.hello.Hello
Help!Thanks for your replay.
Before I set the classpath, I had met the ClassNotFound problem.
My command : java -cp %WEBLOGIC_SERVER%\lib\weblogic.jar weblogic.rmic -idl ejbModule.hello.Hello
I was afraid to lost the class that the weblogic.rmic is required, I set the classpath(java library path/class ,weblogic library path/class).
I think the class what is not found is like my class(hello), not the class of the weblogic or java.
Now I don't know what is requred by weblogic.rmic. Is it a class or source of "Hello", and the package name of "Hello" is requred?
After the idl option is cut, when I execute the Command[java weblogic.rmic *---idl--* ejbModule.hello.Hello], I got the other error, below.
(*the Hello class is in ejbModule.jar)
C:\CORBA\test>java weblogic.rmic ejbModule.hello.Hello
java.lang.ClassNotFoundException: ejbModule.hello.Hello
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
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at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
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at java.lang.Class.forName(Unknown Source)
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va.java:765)
at weblogic.rmi.rmic.Remote2Java.loadClass(Remote2Java.java:757)
at weblogic.rmi.rmic.Remote2Java.checkIsNotInterface(Remote2Java.java:73
6)
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at weblogic.utils.compiler.Tool.run(Tool.java:115)
at weblogic.rmic.main(rmic.java:142)
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----------------------- -
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Hi,
Kindly shed some light on executing the MSwindows batch commands from linux machine.
Thanks
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Deleting a row from a Parent VO gives NullPointerException
I am using JDev 11.1.1.2.0
Deleting a row from a Parent VO gives NullPointerException raised from oracle.jbo.server.EntityImpl.vetoRemoveWithDetails(EntityImpl.java:8214)
Here is my implementation:
There are two Entity Objects(Named "Parent" and "Child").
Both EO are NOT based on a database table. (These are populated from a method in the AM, the method calls a database API that returns an nested array and this array is used to populate the Parent and Child entities)
All attributes in these entity objects are Non-persistent.
The View Object "ParentEv" is based on "Parent" EO
The View Object "ChildEv" is based on "Child" EO
The View Objects "ParentEv" and "ChildEv" are linked by a view link.
The Entities "Parent" and"Child" are linked by Entity Association ( as "Composition Association" with "Implement Cascade Delete" checked.)
I am programatically deleting and populating the View Objects ParentEv and ChildEv from a method in the AM.
The first time I execute the method in BC Tester, it works fine.
The second time I execute the method it works fine.
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* This method populates the VOs ParentEv and ChildEv.
* These VOs are based on EOs Paren and Child, respectively.
* Before populating the VOs I am deleting any existing rows.
* The first two times this method is executed, it works fine.
* The third time this method executes it gives a nullpointerexception raised from
* oracle.jbo.server.EntityImpl.vetoRemoveWithDetails(EntityImpl.java:8214)
public void populateMethod(){
int rowCount = getParentEv().getRowCount();
for (int i = 0; i < rowCount; i++) {
Row row = getParentEv().last();
if(row!=null)
row.remove();
rowCount = getChildEv().getRowCount();
for (int i = 0; i < rowCount; i++) {
Row row = getChildEv().last();
if(row!=null)
row.remove();
int k = 0;
for (int i = 1; i < 5; i++) {
ParentEvRowImpl parentEvRow = (ParentEvRowImpl)getParentEv().createRow();
parentEvRow.setParentPk("Parent " + i);
parentEvRow.setParentDesc("Parent Desc " + i);
getParentEv().insertRow(parentEvRow);
for (int j = 1; j < 5; j++) {
k++;
ChildEvRowImpl childEvRow = (ChildEvRowImpl)getChildEv().createRow();
childEvRow.setChildPk("Child " + k);
childEvRow.setChildDesc("Child Desc " + k);
getChildEv().insertRow(childEvRow);
}==============================================================================
Here is the Parent.xml for the Parent EO:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE Entity SYSTEM "jbo_03_01.dtd">
<!---->
<Entity
xmlns="http://xmlns.oracle.com/bc4j"
Name="Parent"
Version="11.1.1.55.36"
AliasName="Parent"
BindingStyle="OracleName"
UseGlueCode="false"
RowClass="oracle.jbo.server.EntityImpl"
DefClass="oracle.jbo.server.EntityDefImpl"
CollClass="oracle.jbo.server.EntityCache">
<DesignTime>
<AttrArray Name="_publishEvents"/>
</DesignTime>
<Attribute
Name="ParentPk"
IsQueriable="false"
IsPersistent="false"
ColumnName="PARENTPK"
SQLType="VARCHAR"
Type="java.lang.String"
ColumnType="$none$"
PrimaryKey="true"/>
<Attribute
Name="ParentDesc"
IsQueriable="false"
IsPersistent="false"
ColumnName="$none$"
SQLType="VARCHAR"
Type="java.lang.String"
ColumnType="$none$"/>
<AccessorAttribute
Name="Child"
Association="model.eo.ea.ChildParentAssoc"
AssociationEnd="model.eo.ea.ChildParentAssoc.Child"
AssociationOtherEnd="model.eo.ea.ChildParentAssoc.Parent"
Type="oracle.jbo.RowIterator"
IsUpdateable="false"/>
</Entity>==============================================================================
Here is the Child.xml for the Child EO:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE Entity SYSTEM "jbo_03_01.dtd">
<!---->
<Entity
xmlns="http://xmlns.oracle.com/bc4j"
Name="Child"
Version="11.1.1.55.36"
AliasName="Child"
BindingStyle="OracleName"
UseGlueCode="false">
<DesignTime>
<AttrArray Name="_publishEvents"/>
</DesignTime>
<Attribute
Name="ChildPk"
IsUpdateable="while_insert"
IsQueriable="false"
IsPersistent="false"
IsNotNull="true"
ColumnName="CHILDPK"
SQLType="VARCHAR"
Type="java.lang.String"
ColumnType="$none$"
PrimaryKey="true"/>
<Attribute
Name="ChildDesc"
IsQueriable="false"
IsPersistent="false"
ColumnName="$none$"
SQLType="VARCHAR"
Type="java.lang.String"
ColumnType="$none$"/>
<Attribute
Name="ParentPk"
IsQueriable="false"
IsPersistent="false"
IsNotNull="true"
ColumnName="$none$"
SQLType="VARCHAR"
Type="java.lang.String"
ColumnType="$none$"/>
</Entity>==============================================================================
Here is the ChildParentAssoc.xml for the Association between Parent and Child EOs:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE Association SYSTEM "jbo_03_01.dtd">
<!---->
<Association
xmlns="http://xmlns.oracle.com/bc4j"
Name="ChildParentAssoc"
Version="11.1.1.55.36">
<DesignTime>
<Attr Name="_isCodegen" Value="true"/>
</DesignTime>
<AssociationEnd
Name="Parent"
Cardinality="1"
Source="true"
Owner="model.eo.Parent"
DeleteContainee="true"
LockLevel="NONE"
ExposedAccessor="false">
<DesignTime>
<Attr Name="_aggregation" Value="0"/>
<Attr Name="_finderName" Value="Parent"/>
<Attr Name="_isUpdateable" Value="true"/>
<Attr Name="_minCardinality" Value="1"/>
</DesignTime>
<AttrArray Name="Attributes">
<Item Value="model.eo.Parent.ParentPk"/>
</AttrArray>
</AssociationEnd>
<AssociationEnd
Name="Child"
Cardinality="-1"
Owner="model.eo.Child"
HasOwner="true">
<DesignTime>
<Attr Name="_aggregation" Value="0"/>
<Attr Name="_finderName" Value="Child"/>
<Attr Name="_isUpdateable" Value="true"/>
</DesignTime>
<AttrArray Name="Attributes">
<Item Value="model.eo.Child.ParentPk"/>
</AttrArray>
</AssociationEnd>
</Association>==============================================================================
Here is the ParentEv.xml for the ParentEv VO:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE ViewObject SYSTEM "jbo_03_01.dtd">
<!---->
<ViewObject
xmlns="http://xmlns.oracle.com/bc4j"
Name="ParentEv"
Version="11.1.1.55.36"
BindingStyle="OracleName"
CustomQuery="true"
RowClass="model.vo.ev.ParentEvRowImpl"
ComponentClass="model.vo.ev.ParentEvImpl"
PageIterMode="Full"
UseGlueCode="false">
<DesignTime>
<Attr Name="_codeGenFlag2" Value="Access|Coll"/>
<Attr Name="_isExpertMode" Value="true"/>
<Attr Name="_isCodegen" Value="true"/>
</DesignTime>
<EntityUsage
Name="Parent"
Entity="model.eo.Parent"/>
<ViewAttribute
Name="ParentDesc"
IsSelected="false"
IsQueriable="false"
IsPersistent="false"
PrecisionRule="true"
Precision="255"
EntityAttrName="ParentDesc"
EntityUsage="Parent"
AliasName="PARENTDESC"/>
<ViewAttribute
Name="ParentPk"
IsQueriable="false"
IsPersistent="false"
PrecisionRule="true"
EntityAttrName="ParentPk"
EntityUsage="Parent"/>
<ViewLinkAccessor
Name="ChildEv"
ViewLink="model.vo.vl.ChildEvParentEvVl"
Type="oracle.jbo.RowIterator"
IsUpdateable="false"/>
</ViewObject>==============================================================================
Here is the ChildEv.xml for the ChildEv VO:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE ViewObject SYSTEM "jbo_03_01.dtd">
<!---->
<ViewObject
xmlns="http://xmlns.oracle.com/bc4j"
Name="ChildEv"
Version="11.1.1.55.36"
BindingStyle="OracleName"
CustomQuery="true"
RowClass="model.vo.ev.ChildEvRowImpl"
ComponentClass="model.vo.ev.ChildEvImpl"
PageIterMode="Full"
UseGlueCode="false">
<DesignTime>
<Attr Name="_codeGenFlag2" Value="Access|Coll"/>
<Attr Name="_isExpertMode" Value="true"/>
<Attr Name="_isCodegen" Value="true"/>
</DesignTime>
<EntityUsage
Name="Child"
Entity="model.eo.Child"/>
<ViewAttribute
Name="ChildDesc"
IsSelected="false"
IsQueriable="false"
IsPersistent="false"
PrecisionRule="true"
Precision="255"
EntityAttrName="ChildDesc"
EntityUsage="Child"
AliasName="CHILDDESC"/>
<ViewAttribute
Name="ChildPk"
IsUpdateable="while_insert"
IsQueriable="false"
IsPersistent="false"
IsNotNull="true"
PrecisionRule="true"
EntityAttrName="ChildPk"
EntityUsage="Child"/>
<ViewAttribute
Name="ParentPk"
IsQueriable="false"
IsPersistent="false"
IsNotNull="true"
PrecisionRule="true"
EntityAttrName="ParentPk"
EntityUsage="Child"/>
</ViewObject>==============================================================================
Here is the ChildEvParentEvVl.xml for the view link between ParentEv and ChildEv VOs:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE ViewLink SYSTEM "jbo_03_01.dtd">
<!---->
<ViewLink
xmlns="http://xmlns.oracle.com/bc4j"
Name="ChildEvParentEvVl"
Version="11.1.1.55.36">
<DesignTime>
<Attr Name="_isCodegen" Value="true"/>
</DesignTime>
<ViewLinkDefEnd
Name="ParentEv"
Cardinality="1"
Owner="model.vo.ev.ParentEv"
Source="true">
<DesignTime>
<Attr Name="_finderName" Value="ParentEv"/>
<Attr Name="_isUpdateable" Value="true"/>
</DesignTime>
<AttrArray Name="Attributes">
<Item Value="model.vo.ev.ParentEv.ParentPk"/>
</AttrArray>
</ViewLinkDefEnd>
<ViewLinkDefEnd
Name="ChildEv"
Cardinality="-1"
Owner="model.vo.ev.ChildEv">
<DesignTime>
<Attr Name="_finderName" Value="ChildEv"/>
<Attr Name="_isUpdateable" Value="true"/>
</DesignTime>
<AttrArray Name="Attributes">
<Item Value="model.vo.ev.ChildEv.ParentPk"/>
</AttrArray>
</ViewLinkDefEnd>
</ViewLink> -
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I having problem getting the output of grep command in Linux (Red Hat 9.0).
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Below is my code.
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Process p = Runtime.getRuntime().exec(catCommand);
usbInfoBuffer = new StringBuffer("");
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InputStream errStream = p.getErrorStream();
new InputStreamHandler( errBuffer , errStream );
p.waitFor();
catCommandOutput = usbInfoBuffer.toString();
System.out.println("USB Info : " +catCommandOutput);
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boolean filesuccess = catCommandOutputFile.createNewFile();
setContents(catCommandOutputFile,catCommandOutput);
extractUSBInfo();
}catch(Exception e) {
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public void extractUSBInfo() {
try {
String filename = " /EthicsPoint/usbInfo.txt";
String grepCommand = "grep \"P:\\|S:\""+filename ;
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Process p = Runtime.getRuntime().exec(grepCommand);
usbExtractedInfoBuffer = new StringBuffer("");
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InputStream errStream = p.getErrorStream();
new InputStreamHandler( errBuffer , errStream );
p.waitFor();
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}catch(Exception e) {
JOptionPane.showMessageDialog(null," Exception occured executing Native Method..grepCommand..." ,epname,JOptionPane.ERROR_MESSAGE); System.out.println("File Exception No 7" +e);
}I am not getting any IOException. The output of System.out.println("Searched USB Info : " +Output); is blank.
If I try shell> grep "P:\|S:" /EthicsPoint/usbInfo.txt, I get the desired output.
What could be the reason ? While using cat command I am getting the output , but grep command is
returning blank. I even tried String array[] for exec() command, but still get blank.
Where and what I am doing wrong ?
Thanks in advance.
Regards,
Jay.Hi asjf,
Thanks a lot... The problem is finally solved.
String exeCommand = "grep P:\\|S: "+filename; I removed the quotes and it worked. But if I
remove backslash for the pipe symbol nothing happens..as I get return value of 1.
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Print command from linux PC on to Windows Environment
Hi Experts,
We have SAP on Windows and the network printer is also on Windows, the PC with Linux is integrated with network printer i.e when the print command from Linux is given the output is available from the printer (Windows). But when the print command is given through SAP there is no output from Printer (Windows).
When same user logs into Windows the printer command is successful.hi hari,
Printing SAP documents using Linux client is a little bit tricky if you want to get good printing result just as when you print from your Windows client.
If you want to use G printing method (on Linux client), you can't use SAPWIN on device type since SAPWIN is relying printing method. You must use exact printer driver. For example when you're using Dot Matrix printer Epson LX300+, you can use EPESCP2
I am using different method to cheat this and it's completely work.
ardhian
http://ardhian.kioslinux.com
http://sapbasis.wordpress.com -
How to use getAncestor(n),getdescendant(child,child) in sql why they are use please give me example
how to use getAncestor(n),getdescendant(child,child) in sql why they are use please give me example
jitendraBelow are a few examples that demonstrate these hierarchyid data type methods. See the hierarchyid reference in the SQL Server Books Online for more examples of these and other methods (http://technet.microsoft.com/en-us/library/bb677193.aspx).
--return a child of this node ('/1/')
SELECT CAST('/' AS hierarchyid).GetDescendant(NULL, NULL).ToString();
--returns a child of this node greater than child node '/1/' ('/2/')
SELECT CAST('/' AS hierarchyid).GetDescendant(CAST('/1/' AS hierarchyid), NULL).ToString();
--returns a child of this node less than chold node '/1/' ('/0/')
SELECT CAST('/' AS hierarchyid).GetDescendant(NULL, CAST('/1/' AS hierarchyid)).ToString();
--returns a child of this node greater than child node '/1/' and less than child node '/2/' ('/1.1/')
SELECT CAST('/' AS hierarchyid).GetDescendant(CAST('/1/' AS hierarchyid), CAST('/2/' AS hierarchyid)).ToString();
--return ancestor of node 1 level up from this node ('/1/2/')
SELECT CAST('/1/2/3/' AS hierarchyid).GetAncestor(1).ToString();
--return ancestor of node 2 levels up from this node ('/1/')
SELECT CAST('/1/2/3/' AS hierarchyid).GetAncestor(2).ToString();
Dan Guzman, SQL Server MVP, http://www.dbdelta.com -
Hi,
Not a problem, please post the KJS error logs for me to hunt the
exact reason for the error.
Thanks & Regards
Raj
Neel John wrote:
To run an application on iAS6sp1 on HP-Unix, while starting the kjs
from command line, it gives a GDS error and crashes. Subsequently,
after stopping all services and restarting iAS wouldnot come up.
Try our New Web Based Forum at http://softwareforum.sun.com
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Command 1 now gives bonjour list instead of buddy list
since upping to leopard, my window shortcuts have swapped.
command 1 now gives me the bonjour list and command 2 gives me the buddy list.
and when i click on the dock icon, i get the bonjour list. basically, bonjour and buddy lists have swapped places. it is a small thing, but it's actually becoming a bit frustrating.
anyone have a hint for me?
thanks in advance,
~kylethanks for the reply. this partially fixes the problem.
the command 1 and 2 are working now with this system pref change.
however, when i click the icon in the dock, the bonjour list pops up instead of the buddy list. i guess i'll just have to live with it.
any hint as to how this happened?
will trashing the plist help?
thanks again,
~kyle
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