Hello, JDK32 Bit it can work normal, but both branches of this project have issues with JDK 64 bit NullPointerException,
Log：
TWAIN GET: 0f10ffff000000000000000000000000,0f100400908e52f75c02000000000000,null
TWAIN GET: 1811ffff000000000000000000000000,18110600708a52f75c02000000000000,java.lang.NullPointerException
at free.lucifer.jtwain.Twain.getContainer(Twain.java:1017)
at free.lucifer.jtwain.TwainCapability.get(TwainCapability.java:86)
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:3318)
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)
java.lang.NullPointerException: Cannot load from byte/boolean array because "buf" is null
at free.lucifer.jtwain.utils.TwainUtils.getINT16(TwainUtils.java:25)
at free.lucifer.jtwain.variable.TwainContainer.(TwainContainer.java:41)
at free.lucifer.jtwain.variable.TwainOneValue.(TwainOneValue.java:31)
at free.lucifer.jtwain.TwainCapability.get(TwainCapability.java:96)
at free.lucifer.jtwain.TwainCapability.get(TwainCapability.java:105)
at free.lucifer.jtwain.TwainCapability.getCurrent(TwainCapability.java:113)
at free.lucifer.jtwain.TwainCapability.(TwainCapability.java:53)
at free.lucifer.jtwain.TwainSource.getCapability(TwainSource.java:200)
at free.lucifer.jtwain.TwainSource.setCapability(TwainSource.java:223)
at free.lucifer.jtwain.TwainSource.setShowProgressBar(TwainSource.java:275)
at free.lucifer.jtwain.scan.Source.setupSource(Source.java:111)
at free.lucifer.jtwain.scan.Source.update(Source.java:100)
at free.lucifer.jtwain.TwainScanner.fireListenerUpdate(TwainScanner.java:165)
at free.lucifer.jtwain.TwainScanner.negotiateCapabilities(TwainScanner.java:113)
at free.lucifer.jtwain.Twain.negotiateCapabilities(Twain.java:1067)
at free.lucifer.jtwain.TwainSource.enable(TwainSource.java:334)
at free.lucifer.jtwain.Twain.execute(Twain.java:1227)
at free.lucifer.jtwain.TwainWndProc.callback(TwainWndProc.java:52)
at jdk.internal.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at com.sun.jna.CallbackReference$DefaultCallbackProxy.invokeCallback(CallbackReference.java:520)
at com.sun.jna.CallbackReference$DefaultCallbackProxy.callback(CallbackReference.java:551)
at com.sun.jna.Native.invokeLong(Native Method)
at com.sun.jna.Function.invoke(Function.java:421)
at com.sun.jna.Function.invoke(Function.java:354)
at com.sun.jna.Library$Handler.invoke(Library.java:244)
at jdk.proxy1/jdk.proxy1.$Proxy2.DispatchMessage(Unknown Source)
at free.lucifer.jtwain.Twain$1.run(Twain.java:907)
at java.base/java.lang.Thread.run(Thread.java:842) me too...
DenisLAD
