tensorflow / tensorflow/java

Modular Java app can't create tensor object

Aperta
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Lingua principale
Java
Stelle
928
Fork
227
Metriche di merge delle PR
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Descrizione

System information

  • Have I written custom code (as opposed to using a stock example script provided in TensorFlow): YES
  • OS Platform and Distribution (e.g., Linux Ubuntu 16.04 x86_64): Windows 10 Pro
  • TensorFlow installed from (source or binary): Gradle dependence
  • TensorFlow version (use command below): 2.10.1
  • Java version (i.e., the output of java -version): 17.0.2
  • Java command line flags (e.g., GC parameters):
  • Python version (if transferring a model trained in Python):
  • Bazel version (if compiling from source):
  • GCC/Compiler version (if compiling from source):
  • CUDA/cuDNN version: 12.3
  • GPU model and memory:

Describe the current behavior
Java Gradle project, as built from IntelliJ IDEA pattern, repeatedly reports a fatal warning on attempt to create a tensor object. See the code and log below. The error raises exception that is effectively intercepted by JavaFX runtime.
The project was found having Java module support. After this support has been removed from the project, code runs just fine. However, modularity is highly desired for the application.

Describe the expected behavior

After module access permissions (exports, open's) get fixed in tensorflow-core-platform, etc., all Java objects should be created just fine, as they are in non-modular edition of the project.

Code to reproduce the issue

excerpt from file src/main/java/module-info.java:

module com.varankin.ocrc.jfx
{
    requires org.tensorflow.ndarray;
    requires org.tensorflow;
}

excerpt from file build.gradle (remove shown lines to let code run with no error):

plugins 
{
    id 'org.javamodularity.moduleplugin' version '1.8.12'
}
dependencies 
{
    implementation 'org.tensorflow:tensorflow-core-platform:0.5.0'
}

excerpt from file src/main/java/com/varankin/ocrc:

package com.varankin.ocrc;
import org.tensorflow.*;
import org.tensorflow.ndarray.*;
import org.tensorflow.types.TFloat32;
import org.tensorflow.types.TInt32;

public class Inferencer
{
    public void image( float[][] data )
    {
            FloatNdArray data_nda = NdArrays.ofFloats( Shape.of( data.length, data[0].length ) );
            data_nda.elements( /* 0, */ 1 ).forEachIndexed( (ix,nda) -> nda.setFloat( data[(int)ix[0]][(int)ix[1]] ) );
            // OK before this line; any next line fails; 
            TInt32 tdata_is = TInt32.scalarOf( 24 );
            TInt32 tdata_i = TInt32.tensorOf( Shape.of( 24, 24 ) );
            TFloat32 tdata_0 = TFloat32.tensorOf( Shape.of( 24, 24 ) );
            tdata_0.set( data_nda );
            TFloat32 tdata = TFloat32.tensorOf( data_nda );
    }
}

Other info / logs

Warning: Could not create an instance of class org.tensorflow.internal.c_api.presets.tensorflow: java.lang.IllegalAccessException: class org.bytedeco.javacpp.ClassProperties (in module org.bytedeco.javacpp) cannot access class org.tensorflow.internal.c_api.presets.tensorflow (in module org.tensorflow) because module org.tensorflow does not export org.tensorflow.internal.c_api.presets to module org.bytedeco.javacpp

Call stack has been wiped off by JavaFX, below is manual reproduction

  • com.varankin.ocrc.Inferencer.image
  • org.tensorflow.types.TInt32.scalarOf:44 -- same for TFloat32 methods
  • org.tensorflow.Tensor.of:128
  • org.tensorflow.RawTensor.allocate:109

Please do not hesitate to ask for runnable example if needed. Current project cannot be presented as-is because of IP protection requirements, and because it's bulky.

Guida per i contributori

Apri la guida per i contributori

Come iniziare

  1. Leggi tutta la issue e poi la guida ai contributi del progetto.
  2. Commenta sulla issue per dire che te ne occupi tu — evita che due persone facciano lo stesso lavoro.
  3. Fai un fork del repository e lavora su un branch.
  4. Apri una pull request che faccia riferimento al numero della issue.

Direzione di ricerca

Inizia con src/main/java/module-info.java e build.gradle, quindi esamina le dichiarazioni dei moduli TensorFlow Java coinvolte nell’IllegalAccessException. Riproduci il malfunzionamento tramite com.varankin.ocrc.Inferencer.image e le chiamate di creazione dei tensori TInt32/TFloat32. Il lavoro è completato quando l’applicazione Gradle modulare riesce a creare tensori senza l’avviso di accesso segnalato.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Valutazione

Stack tecnologico
java
Ambito
machine-learning
Tipo di issue
Bug
Difficoltà
4/5
Tempo stimato
3-5 giorni
Stato di attività
Ferma
Chiarezza
Abbastanza chiara
Idoneità per principianti
28/100

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