JayBird 2.2 embedded

[Steffen Heil]

Hi

I know that jaybird 2.2 is outdated, but I need to get a legacy application working (to transfer data, not in production), that is using FBWrappingDataSource.

I have set FIREBIRD to the path of the extracted (but otherwise unchanged) ZIP:

>echo %FIREBIRD%

l:\portable\Firebird-3.0.7.33374-1

I try to use it using AdoptOpenJDK 8 x64:

>..\..\..\jdk8u292-b10\bin\java -Djava.library.path=..\..\..\Jaybird-2.2.15-JDK_1.8 -...

2021-06-17 19:23:06.071 / INFO null - database initialized

java.lang.RuntimeException: Failed to initialize Jaybird native library. This is most likely due to a failure to load the firebird client library.

        at org.firebirdsql.gds.impl.jni.JniGDSImpl.attemptToLoadAClientLibraryFromList(JniGDSImpl.java:106)

        at org.firebirdsql.gds.impl.jni.EmbeddedGDSImpl.<init>(EmbeddedGDSImpl.java:31)

...

What am I missing?

Best regards,

   Steffen

[Mark Rotteveel]

The error itself means that Jaybird can't find or load jaybird22.dll or
jaybird22_x64.dll, or that the jaybird DLL can't find or load
fbclient.dll. For Jaybird 2.2, you need to ensure that 1) the location
of the jaybird.dll is on the java.library.path, and 2) the location of
fbclient.dll is on the PATH (Jaybird does nothing with the FIREBIRD
environment variable).

If you just need to run the application to transfer data, you may want
to consider using an actual Firebird server instead of using Firebird
Embedded.

Mark
--
Mark Rotteveel

[Steffen Heil]

If I leave out the -Djava.library.path=... argument, I get another error:

  java.lang.UnsatisfiedLinkError: no jaybird22_x64 in java.library.path

So I suspect it can load this library. And I have added the Firebird folder to the path, tried both relative and absolute. (I added the root folder that contanis fbclient.dll.)

Still getting:

   java.lang.RuntimeException: Failed to initialize Jaybird native library. This is most likely due to a failure to load the firebird client library.

        at org.firebirdsql.gds.impl.jni.JniGDSImpl.attemptToLoadAClientLibraryFromList(JniGDSImpl.java:106)

Using something that has to be installed is not an option, as I need to create an archive and forward that to someone who is neither willing nor allowed to install software.

Regards,

   Steffen

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[Mark Rotteveel]

On 18-06-2021 16:15, Steffen Heil wrote:
> If I leave out the -Djava.library.path=... argument, I get another error:
>   java.lang.UnsatisfiedLinkError: no jaybird22_x64 in java.library.path

So, the problem is not part 1), then it is part 2). Did you use the
64-bit Firebird?

> So I suspect it can load this library. And I have added the Firebird
> folder to the path, tried both relative and absolute. (I added the root
> folder that contanis fbclient.dll.)

Things in PATH always need to be an absolute path as far as I'm aware.

Mark
--
Mark Rotteveel

[Mark Rotteveel]

On 18-06-2021 16:15, Steffen Heil wrote:

> If I leave out the -Djava.library.path=... argument, I get another error:
>   java.lang.UnsatisfiedLinkError: no jaybird22_x64 in java.library.path
>
> So I suspect it can load this library. And I have added the Firebird
> folder to the path, tried both relative and absolute. (I added the root
> folder that contanis fbclient.dll.)
> Still getting:
>    java.lang.RuntimeException: Failed to initialize Jaybird native
> library. This is most likely due to a failure to load the firebird
> client library.
>         at
> org.firebirdsql.gds.impl.jni.JniGDSImpl.attemptToLoadAClientLibraryFromList(JniGDSImpl.java:106)
>
> Using something that has to be installed is not an option, as I need to
> create an archive and forward that to someone who is neither willing nor
> allowed to install software.

I just tried it myself, and I overlooked something: Jaybird 2.2 for
embedded connections only tries to load fbembed.dll (or libfbembed.so on
Linux). So, for this to work, you need to copy fbclient.dll to a file
named fbembed.dll.

Mark
--
Mark Rotteveel

[Steffen Heil]

That did the trick. Thank you very much - again!

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