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DenisLAD / twain4java

Pure JAVA Twain library
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Example running error, requesting help, thank you #2

Open aa584521 opened 7 months ago

aa584521 commented 7 months ago

Example running error, requesting help, thank you！

Connected to the target VM, address: '127.0.0.1:56702', transport: 'socket' Metal Nimbus CDE/Motif Windows TWAIN GET: 0f10ffff000000000000000000000000,0f10040070df8e694901000000000000,TWAIN GET: 1811ffff000000000000000000000000,18110400b020ce694901000000000000,java.lang.NullPointerException at free.lucifer.jtwain.TwainCapability.dumpHex(TwainCapability.java:142) at free.lucifer.jtwain.TwainCapability.get(TwainCapability.java:87) at free.lucifer.jtwain.TwainCapability.get(TwainCapability.java:105) at free.lucifer.jtwain.TwainCapability.get(TwainCapability.java:109) at free.lucifer.jtwain.TwainCapability.(TwainCapability.java:45) at free.lucifer.jtwain.TwainSource.getCapability(TwainSource.java:196) at free.lucifer.jtwain.ui.ScannerFrame.selectScannerActionPerformed(ScannerFrame.java:258) at free.lucifer.jtwain.ui.ScannerFrame.access$100(ScannerFrame.java:51) at free.lucifer.jtwain.ui.ScannerFrame$2.actionPerformed(ScannerFrame.java:108) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:262) at java.awt.Component.processMouseEvent(Component.java:6539) at javax.swing.JComponent.processMouseEvent(JComponent.java:3324) at java.awt.Component.processEvent(Component.java:6304) at java.awt.Container.processEvent(Container.java:2239) at java.awt.Component.dispatchEventImpl(Component.java:4889) at java.awt.Container.dispatchEventImpl(Container.java:2297) at java.awt.Component.dispatchEvent(Component.java:4711) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4904) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4535) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4476) at java.awt.Container.dispatchEventImpl(Container.java:2283) at java.awt.Window.dispatchEventImpl(Window.java:2746) at java.awt.Component.dispatchEvent(Component.java:4711) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:709) at java.awt.EventQueue$3.run(EventQueue.java:703) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:84) at java.awt.EventQueue$4.run(EventQueue.java:733) at java.awt.EventQueue$4.run(EventQueue.java:731) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74) at java.awt.EventQueue.dispatchEvent(EventQueue.java:730) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

DenisLAD commented 3 months ago

Can you provide additional information?

Scanner vendor: HP, Canon, ...

JVM Version: JDK? 32 or 64 bits VM?

Windows version: ?