实例化 SignatureComponent 后,
SignatureComponent custSignature = new SignatureComponent();
投掷:
[EDT] 0:1:21,183 - Error creating style SignatureButtonBox. selected: false prefix:
java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String
[EDT] 0:1:21,183 - Exception: java.lang.ClassCastException - java.lang.Integer cannot be cast to java.lang.String
我已经刷新了所有 CN1 库,干净编译。
想法?
异常(为了方便起见,粘贴在下面)表明有人正在做这样的事情:
Object value = 3;
String asString = (String)value;
这在 Java 中是非法的。它还表明它来自 Button.java 的第 835 行。但正如您所看到的,那里没有这样的代码。文件中只有一次到 String 的强制转换,这很好。这不可能是一个Integer
,至少不是偶然的。这导致我在你的项目中发现了三个错误的事情,我认为其中之一是问题的原因:
7.0.133
,编辑
pom.xml
并确保更新旧版本。
[EDT] 0:28:42,626 - Exception: java.lang.ClassCastException - class java.lang.Integer cannot be cast to class java.lang.String (java.lang.Integer and java.lang.String are in module java.base of loader 'bootstrap')
at com.codename1.ui.Button.pointerReleased(Button.java:835)
at com.codename1.ui.LeadUtil.pointerReleased(LeadUtil.java:153)
at com.codename1.ui.Form.pointerReleased(Form.java:3881)
at com.codename1.ui.Component.pointerReleased(Component.java:5266)
at com.codename1.ui.Display.handleEvent(Display.java:2409)
at com.codename1.ui.Display.edtLoopImpl(Display.java:1285)
at com.codename1.ui.Display.invokeAndBlock(Display.java:1503)
at com.codename1.ui.Display.invokeAndBlock(Display.java:1542)
at com.codename1.io.NetworkManager.addToQueueAndWait(NetworkManager.java:746)
at org.littlemonkey.connectivity.SimulatorConnectionManager.getConnectionStatus(SimulatorConnectionManager.java:47)
at org.littlemonkey.connectivity.Connectivity.getConnectionState(Connectivity.java:44)
at org.littlemonkey.connectivity.Connectivity.isConnected(Connectivity.java:40)
at com.mobile.server.ServerImpl.isOffline(ServerImpl.java:2090)
at com.mobile.forms.BaseForm.addOfflineHint(BaseForm.java:70)
at com.mobile.forms.BaseForm.<init>(BaseForm.java:63)
at com.mobile.forms.RatingForm.<init>(RatingForm.java:57)
at com.mobile.forms.ActivityCompleteIncompleteForm.lambda$new$2(ActivityCompleteIncompleteForm.java:93)
at com.codename1.ui.util.EventDispatcher.fireActionEvent(EventDispatcher.java:349)
at com.codename1.ui.Button.fireActionEvent(Button.java:687)
at com.codename1.ui.Button.released(Button.java:728)
at com.codename1.ui.Button.pointerReleased(Button.java:835)
at com.codename1.ui.LeadUtil.pointerReleased(LeadUtil.java:153)
at com.codename1.ui.Form.pointerReleased(Form.java:3881)
at com.codename1.ui.Component.pointerReleased(Component.java:5266)
at com.codename1.ui.Display.handleEvent(Display.java:2409)
at com.codename1.ui.Display.edtLoopImpl(Display.java:1285)
at com.codename1.ui.Display.invokeAndBlock(Display.java:1503)
at com.codename1.ui.Display.invokeAndBlock(Display.java:1542)
at com.codename1.io.NetworkManager.addToQueueAndWait(NetworkManager.java:746)
at org.littlemonkey.connectivity.SimulatorConnectionManager.getConnectionStatus(SimulatorConnectionManager.java:47)
at org.littlemonkey.connectivity.Connectivity.getConnectionState(Connectivity.java:44)
at org.littlemonkey.connectivity.Connectivity.isConnected(Connectivity.java:40)
at com.ymobile.server.ServerImpl.isOffline(ServerImpl.java:2090)
at com.mobile.forms.BaseForm.addOfflineHint(BaseForm.java:70)
at com.mobile.forms.BaseForm.<init>(BaseForm.java:63)
at com.mobile.forms.RatingForm.<init>(RatingForm.java:57)
at com.ymobile.forms.ActivityCompleteIncompleteForm.lambda$new$2(ActivityCompleteIncompleteForm.java:93)
at com.codename1.ui.util.EventDispatcher.fireActionEvent(EventDispatcher.java:349)
at com.codename1.ui.Button.fireActionEvent(Button.java:687)
at com.codename1.ui.Button.released(Button.java:728)
at com.codename1.ui.Button.pointerReleased(Button.java:835)
at com.codename1.ui.LeadUtil.pointerReleased(LeadUtil.java:153)
at com.codename1.ui.Form.pointerReleased(Form.java:3881)
at com.codename1.ui.Component.pointerReleased(Component.java:5266)
at com.codename1.ui.Display.handleEvent(Display.java:2409)
at com.codename1.ui.Display.edtLoopImpl(Display.java:1285)
at com.codename1.ui.Display.mainEDTLoop(Display.java:1203)
at com.codename1.ui.RunnableWrapper.run(RunnableWrapper.java:120)
at com.codename1.impl.CodenameOneThread.run(CodenameOneThread.java:176)