“A fatal error has been detected By JVM” when I tried to open a CAD file twice

tonylee — Sat, 11 Dec 2021 23:06:43 GMT

I want to use ArcEngine to read some CAD files on the server and I can not shut down the program. Now I meet the problem that when I open a FeatureClass of CAD file on the second time, A fatal error has been detected by the Java Runtime Environment:EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x5653d153, pid=4164, tid=7888. The code looks like below:

Here is the main method:

public static void main(String[] args){
  for(int i=0;i<2;i++){
  System.out.println("////////////////////"+i+"/////////////////");
  try {
  OpenCadMgr openCadMgr0 = new OpenCadMgr("0.dwg");
  openCadMgr0.showTexts();
  OpenCadMgr openCadMgr1 = new OpenCadMgr("1.dwg");
  openCadMgr1.showTexts();
  OpenCadMgr openCadMgr2 = new OpenCadMgr("2.dwg");
  openCadMgr2.showTexts();
  OpenCadMgr openCadMgr3 = new OpenCadMgr("3.dwg");
  openCadMgr3.showTexts();
  OpenCadMgr openCadMgr4 = new OpenCadMgr("4.dwg");
  openCadMgr4.showTexts();
  OpenCadMgr openCadMgr5 = new OpenCadMgr("5.dwg");
  openCadMgr5.showTexts();
  } catch (Exception e) {
  e.printStackTrace();
  }

  }
  System.out.println("end");
  }

the OpenCadMgr code is below:

public class OpenCadMgr {
  CADLayerCreator _cadLyrCreator;
  String nameOfCadFile = "";

  public OpenCadMgr(String fileName) throws Exception, IOException {
  nameOfCadFileString = fileName;
  String nameOfPathString = "C:\\Users\\test\\Documents\\code\\data";
  this._cadLyrCreator = new CADLayerCreator(nameOfPathString, fileName);
  nameOfCadFile = fileName;
  initLicence();
  }

  private void initLicence() {}

  public void showTexts() {
  try {
  IFeatureClass pTxtFeatureClass = this._cadLyrCreator.getCadFC(FeatureType.multitext);

  if (pTxtFeatureClass != null) {
  IFeatureCursor pFeatureCursor = pTxtFeatureClass.search(null, false);
  IFeature pFeature = pFeatureCursor.nextFeature();
  int featureIndex = 0;
  while (pFeature != null) {
  int index = pFeature.getFields().findField("text");
  String txtString = pFeature.getValue(index).toString();
  IPoint ptIPoint = (IPoint) pFeature.getShape();  
  pFeature = pFeatureCursor.nextFeature();
  featureIndex++;
  }
  System.out.println(nameOfCadFile);
  Cleaner.release(pFeatureCursor);
  Cleaner.release(pFeature);
  }
  Cleaner.release(pTxtFeatureClass);
  this._cadLyrCreator.disposeAO();

  } catch (Exception e) {
  e.printStackTrace();
  }
  }
}

The CADLayerCreator class code is here:

public class CADLayerCreator {
  private static HashMap<String,IFeatureClass> fDict = new HashMap<String, IFeatureClass>();
  private String _nameOfPath;// the path of CAD file 
  private String _nameOfCADFile;// the name of CAD file
  IWorkspaceFactory pWorkspaceFactory;
  IWorkspace pWorkspace;
  IFeatureWorkspace pFeatureWorkspace;
  IFeatureClass pFeatureClass;


  public CADLayerCreator(String nameOfPath, String nameOfCADFile) {
  this._nameOfPath = nameOfPath;
  this._nameOfCADFile = nameOfCADFile;
  }

  public IFeatureClass getCadFC(FeatureType FT) throws Exception{
  try {
  if (!this.isFileExist()) {
  throw new IOException(String.format("can not find the file named '%s' in the path of '%s'!", this._nameOfPath, this._nameOfCADFile));
  }
  // get cad file full name
  String openString = getCadFullNameString(FT);
  // set the workspace factory
  pWorkspaceFactory = new CadWorkspaceFactory();
  // open the workspace
  pWorkspace = pWorkspaceFactory.openFromFile(this._nameOfPath, 0);
  pFeatureWorkspace = new IFeatureWorkspaceProxy(pWorkspace);
  pFeatureClass = pFeatureWorkspace.openFeatureClass(openString);

  fDict.put(openString,pFeatureClass);
  return pFeatureClass;
  } catch (Exception e) {
  throw new Exception("CADLayerCreator-> GetCadFC-> " + e.getMessage());
  }
  }

  public void disposeAO(){
  pWorkspaceFactory = null;
  pWorkspace = null;
  pFeatureWorkspace = null;
  pFeatureClass = null;

// Cleaner.release(pWorkspaceFactory);
// Cleaner.release(pWorkspace);
// Cleaner.release(pFeatureWorkspace);
// Cleaner.release(pFeatureClass);
  System.gc();
  }

  private IFeatureWorkspace getFW(String name) throws Exception {
  try {
  // set the workspace factory
  IWorkspaceFactory pWorkspaceFactory = new CadWorkspaceFactory();
  // open the workspace
  IWorkspace pWorkspace = pWorkspaceFactory.openFromFile(name, 0);
  // set the feature workspace
  IFeatureWorkspace pFeatureWorkspace = new IFeatureWorkspaceProxy(pWorkspace);

  return pFeatureWorkspace;
  } catch (Exception e) {
  // TODO: handle exception
  throw new Exception("CADLayerCreator-> getFW-> " + e.getMessage());
  }

  }

  private boolean isFileExist() {
  String fullPath = this._nameOfPath + "\\" + this._nameOfCADFile;
  File file = new File(fullPath);
  return file.exists();
  }

  private String getCadFullNameString(FeatureType pFT) throws Exception {
  try {
  switch (pFT) {
  case polyline:
  return this._nameOfCADFile + ":Polyline";
  case multitext:
  return this._nameOfCADFile + ":Annotation";
  default:
  return this._nameOfCADFile + ":Polyline";
  }
  } catch (Exception e) {
  throw new Exception("CADLayerCreator -> getCadFullNameString -> " + e.getMessage());
  }
  }

}

Here is the console log:

////////////////////////////////////////0///////////////////////////////////
0.dwg
1.dwg
2.dwg
3.dwg
4.dwg
5.dwg
////////////////////////////////////////1///////////////////////////////////
0.dwg//the 0.dwg file can be read again,but the 1.dwg file can't
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x5653d153, pid=4164, tid=7888
#
# JRE version: Java(TM) SE Runtime Environment (7.0_79-b15) (build 1.7.0_79-b15)
# Java VM: Java HotSpot(TM) Client VM (24.79-b02 mixed mode windows-x86 )
# Problematic frame:
# C 0x5653d153
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# C:\Users\test\Documents\CadReader\hs_err_pid4164.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

I'm not sure whether it is the reason of ArcEngine cannot release the featureclass which I have created or the CAD files have some errors?Can anyone help?

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“A fatal error has been detected By JVM” when I tried to open a CAD file twice