You may want to try VietOCR, a Java desktop app that uses Tess4J. It works with Java 8, 18, and probably 11 too.
http://vietocr.sf.net On Thursday, September 22, 2022 at 7:10:54 AM UTC-5 rcja...@gmail.com wrote: > I am running a Java desktop application on Windows 10 Pro using Tess4j; it > was working fine with Java 1.8, am now trying to get it to run with Java 11 > (11.0.15.1). When it calls > net.sourceforge.tess4j.Tesseract.doOCR(BufferedImage > bi), it gets a Throwable ExceptionInInitializerError, with a 'cause' > exception indicating a call to > net.sourceforge.tess4j.util.LoadLibs.getTesseractLibName(). > > Oddly enough, the application works fine from within eclipse, but fails > running on its own (for instance, running "java -jar program.jar" from a > cmd window). As I said, it was running with Java 1.8, and I might be able > to get it running again by uninstalling Java and reinstalling that JRE, but > there are other people that are going to use the application and it is not > reasonable to expect them to use a Java version that is that old. > > I had the Maven dependency: > > <groupId>net.sourceforge.tess4j</groupId> > <artifactId>tess4j</artifactId> > <version>4.4.1</version> > > The only copy of tess4j-4.1.1.jar on my hard drive is in my > .m2\repository\net\sourceforge\tess4j\tess4j\4.4.1. I have twice deleted it > and updated my maven configuration to restore it, to insure it is not > corrupted. > > I noticed that this is not the most recent Tess4j, so updated the > dependency to 5.4.0 and rebuilt. This has the same results: works in > eclipse, not from command line. > > The ExceptionInInitializerError is caused by an IllegalStateException: zip > file closed error. Documentation indicates this could be a corrupted jar > file or something similar. I don't know what jar file could be involved > except the tess4j, and I've replaced that twice as I've said. > > I've also tried this with two versions of the Tesseract-OCR dll -- > 5.0.1.20220118 and v5.2.0.20220712; they were both installed for "anyone on > this computer" with default options. They give the same results. > > Can someone help me figure out what's wrong? > > Stack trace: > > java.lang.ExceptionInInitializerError > at net.sourceforge.tess4j.Tesseract.init(Tesseract.java:427) > at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:311) > at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:294) > at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:275) > at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:259) > at > drivingrecordtool.file.DrivingRecordPDFTextReader.getOCRText(DrivingRecordPDFTextReader.java:152) > at > drivingrecordtool.file.DrivingRecordPDFTextReader.getText(DrivingRecordPDFTextReader.java:46) > at > drivingrecordtool.file.DrivingRecordFileReader.doInBackground(DrivingRecordFileReader.java:78) > at > drivingrecordtool.file.DrivingRecordFileReader.doInBackground(DrivingRecordFileReader.java:1) > at > java.desktop/javax.swing.SwingWorker$1.call(SwingWorker.java:304) > at > java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) > at java.desktop/javax.swing.SwingWorker.run(SwingWorker.java:343) > at > java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) > at > java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) > at java.base/java.lang.Thread.run(Thread.java:834) > Caused by: java.lang.IllegalStateException: zip file closed > at java.base/java.util.zip.ZipFile.ensureOpen(ZipFile.java:913) > at java.base/java.util.zip.ZipFile.getEntry(ZipFile.java:348) > at java.base/java.util.zip.ZipFile$1.getEntry(ZipFile.java:1130) > at java.base/java.util.jar.JarFile.getEntry0(JarFile.java:586) > at java.base/java.util.jar.JarFile.getEntry(JarFile.java:516) > at > java.base/sun.net.www.protocol.jar.URLJarFile.getEntry(URLJarFile.java:131) > at java.base/java.util.jar.JarFile.getJarEntry(JarFile.java:478) > at > java.base/jdk.internal.loader.URLClassPath$JarLoader.getResource(URLClassPath.java:945) > at > java.base/jdk.internal.loader.URLClassPath.getResource(URLClassPath.java:315) > at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:455) > at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:452) > at java.base/java.security.AccessController.doPrivileged(Native > Method) > at > java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:451) > at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:588) > at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) > at > net.sourceforge.tess4j.util.LoadLibs.getTesseractLibName(LoadLibs.java:95) > at > net.sourceforge.tess4j.util.LoadLibs.getTessAPIInstance(LoadLibs.java:85) > at net.sourceforge.tess4j.TessAPI.<clinit>(TessAPI.java:42) > ... 15 more > > -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. 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