Proxygen Exception: BadImageFormatException

[Rory Gilfillan]

Hi,

I'm trying to load a dll with proxygen and I get the following
exception:
System.BadImageFormatException: Could not load file or assembly
'file:///c:\User
s\roryg\Documents\NetBeansProjects\Oracle PCI Churner\jni4net\work
\idrskrn_net14
.dll' or one of its dependencies. An attempt was made to load a
program with an
incorrect format.

Proxygen works with the MyCSharpDemoCalc.dll sample.

The CorFlags for the dll are:
Version : v2.0.50727
CLR Header: 2.5
PE : PE32
CorFlags : 24
ILONLY : 0
32BIT : 0
Signed : 1

Which is practically the same as MyCSharpDemoCalc.dll.

I also copied all dll's that where in idrskrn_net14
.dll directory in case any of them were dependents. I don't know what
else to do to get this to work.

Any help would be most appreciated.

[Pavel Šavara]

Hi Rory,

most probably you are running 64bit JVM and the DLL is not pure IL.
Try to find 64bit version of the driver. Or use 32bit JVM.

Cheers
Pavel

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[Rory Gilfillan]

Thanks Pavel,

I tried to run the proxygen with my JVM as:
java version "1.6.0_25"
Java(TM) SE Runtime Environment (build 1.6.0_25-b06)
Java HotSpot(TM) 64-Bit Server VM (build 20.0-b11, mixed mode)
... 64-Bit

and with :
java version "1.6.0_26"
Java(TM) SE Runtime Environment (build 1.6.0_26-b03)
Java HotSpot(TM) Client VM (build 20.1-b02, mixed mode, sharing)
... 32-bit

But the problem persists.

[Pavel Šavara]

Sorry, I should say you are running it with 64bit CLR. The proxygen is
CLR application.
You can do it by CorFlags.exe on proxygen.exe

[Rory Gilfillan]

I ran this "corflags bin\proxygen.exe /32BIT+ /force"

and ... it works!!

Thanks a lot :)

[Rory Gilfillan]

Utility still doesn't help though.

Can't translate C#:
aLicenseDRS.ExtensionsToLoad[iExtensionId] =
Convert.Tobooleanean(sr.readLine());

to Java because there is only
aLicenseDRS.getExtensionsToLoad() which returns a boolean[] but there
is no setExtensionsToLoad.

[Rory Gilfillan]

Sorry the array is passed as a pointer so changing it will change the
original.

[Rory Gilfillan]

Static constants don't seem to come through on Java object

C#:
DRSExtensions.AvailableExtensionsCount

No static methods or constant on DRSExtensions in Java

[shreyas raj]

Hi, 

can you please help me..

I am new to the proxygen.exe use.

What i have is a helloWorld.dll (a c# dll) and now i want to create proxies of it. to do that i tried this command:

                   proxygen.exe helloWorld.dll -wd targetFolderName                         

but it didnt worked.

now again i tried running it with Corflags like this:: went to the Corflags directory and then executed this

                   Corflags proxygenFloderPath/proxygen.exe proxygen.xml

     proxygen.xml file is:

<?xml version="1.0" encoding="utf-8" ?> 

<jni4net-proxygen xmlns="http:\\jni4net.sf.net\0.8.4.0\toolConfig.xsd"> 

 <TargetDirJvm>helloWorld</TargetDirJvm>

 <TargetDirClr>helloWorld</TargetDirClr>

 <ClassPath Path="C:\Users\sg0217833\Desktop\dllTest\ex\proxygen\HelloWorld.dll"/> 

  <AssemblyReference Assembly="Interop.TDAPIOLELib.dll"/>

  <Verbose>true</Verbose>

 <ClrType TypeName="System.Reflection"/>

 <ClrType TypeName="System.Runtime.CompilerServices"/>

 <ClrType TypeName="System.Runtime.InteropServices"/>

 <ClrType TypeName="System.Linq"/>

 <ClrType TypeName="System.Text"/>

 <ClrType TypeName="System.Diagnostics"/>

 <ClrType TypeName="System.Linq.Expressions"/>

 <ClrType TypeName="System.Text.RegularExpressions"/>

 <ClrType TypeName="System.Collections"/>

</jni4net-proxygen>

i dont have any idea about the proxygen.xml file,  Please give a look to it,

and offcource it didnt work

and from:

where we ill write the c# dll file path. in class path?? i have written like this.

<ClassPath Path="C:\Users\sg0217833\Desktop\dllTest\ex\proxygen\HelloWorld.dll"/> 

[rxp1...@gmail.com]

Hi. I am attempting to generate proxies from unmanaged (no manifest) and 32bit MilTk.dll file on Windows 7 64bit host. Current status is:

* Installed 

VisualStudio2017 IDE (32 and 64bit compatible), 

Eclipse IDE ver Oxygen4.7.0 for 32bit JavaEE, 

JDK 1.8.0_131 32bit with entry in Sys/EnvVars/Path, 

.Net4.0 (32bit and 64bit compatible) 

jni4net 0.8.8.0 (bin and src bundles).  

* In VS2017 cmd window: Set CorFlags to 32BITREQ+ /Force.

* Used dependency walker tool to list dependencies for this dll to work with proxygen.exe, as shown in attached .csv file.  Details are shown in ScrShot_DepWalker.jpg file.

* In DOS cmd window: Used SysWOW64/regsvr32.exe to register this .DLL and it's dependencies.  Some threw error saying loaded but DllRegisterServer not being found as shown in ScrShot_DllRegSrvNotFound.jpg

When I execute the proxygen.exe command with -wd option, I am getting error shown in attached ScrShot_BIFExc.jpg file.  It could be because I have to declare all dependencies listed in above .csv file while running proxygen.exe either using -dp option or using a config.xml file. 

Do you have a working config.xml file that I could modify for running proxygen.exe (because there are about ~200 dependencies and associated classpath to mention while running proxygen).  Also, do you have a comment/suggestion?  

Thanks.

[Pavel Šavara]

Jni4net is not designed for unmanaged DLLs. For that you could use pure JNI, you don't need complexity of CLR in the picture. Try SWIG project.

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