tensorflow / tensorflow/java

Modular Java app can't create tensor object

Abierto
#509 3 comentarios 0 reacciones 0 asignados Ver en GitHub

Nadie ha tomado este issue todavía.

Lenguaje dominante
Java
Estrellas
928
Forks
227
Métricas de merge de PR
Sin PR fusionados en 30 d

Descripción

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.

Guía de contribución

Abrir la guía de contribución

Primeros pasos

  1. Lee el issue completo y luego la guía de contribución del proyecto.
  2. Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
  3. Haz un fork del repositorio y trabaja en una rama.
  4. Abre un pull request que haga referencia al número del issue.

Línea de trabajo

Comienza con src/main/java/module-info.java y build.gradle; después, inspecciona las declaraciones de módulos de TensorFlow Java implicadas en la IllegalAccessException. Reproduce el fallo mediante com.varankin.ocrc.Inferencer.image y las llamadas de creación de tensores TInt32/TFloat32. Se considera terminado cuando la aplicación modular de Gradle pueda crear tensores sin la advertencia de acceso indicada.

Escrito por el modelo de indexación a partir del texto del issue.

Evaluación

Stack tecnológico
java
Área
machine-learning
Tipo de issue
Error
Dificultad
4/5
Tiempo estimado
3-5 días
Estado de actividad
Estancado
Claridad
Bastante claro
Aptitud para principiantes
28/100

Recibe los nuevos issues en tu correo

Un resumen breve de issues de GitHub para principiantes.