Exception occurring when try to convert json to POJO

[NilukaSripalim]

Sample :
{
"emails": [
{
"type": "work",
"value": "kim_j@wso2.com"
},
{
"type": "home",
"value": "kim.jackson@gmail.com"
}
],
"meta": {
"created": "2019-06-17T16:53:08.644Z",
"location": "https://localhost:9443/scim2/Users/0d05f674-d819-4bc8-9a33-4ab652042734",
"lastModified": "2019-06-17T16:53:08.644Z",
"resourceType": "User"
},
"schemas": [
"urn:ietf:params:scim:schemas:core:2.0:User",
"urn:ietf:params:scim:schemas:extension:enterprise:2.0:User"
],
"roles": [
{
"type": "default",
"value": "Internal/everyone"
}
],
"name": {
"givenName": "kim",
"familyName": "jackson"
},
"id": "0d05f674-d819-4bc8-9a33-4ab652042734",
"userName": "kim"
}

Exception

-1
java.lang.ArrayIndexOutOfBoundsException: -1
at com.nvinayshetty.DTOnator.ClassCreator.StaticClassCreator.addClass(StaticClassCreator.java:46)
at com.nvinayshetty.DTOnator.FeedParser.JsonDtoGenerator.addClass(JsonDtoGenerator.java:130)
at com.nvinayshetty.DTOnator.FeedParser.JsonDtoGenerator.generateClassForObject(JsonDtoGenerator.java:278)
at com.nvinayshetty.DTOnator.FeedParser.JsonDtoGenerator.getFieldsForJson(JsonDtoGenerator.java:210)
at com.nvinayshetty.DTOnator.FeedParser.JsonDtoGenerator.generateDto(JsonDtoGenerator.java:142)
at com.nvinayshetty.DTOnator.FeedParser.JsonDtoGenerator.addFieldsToTheClassUnderCaret(JsonDtoGenerator.java:93)
at com.nvinayshetty.DTOnator.FeedParser.JsonDtoGenerator.run(JsonDtoGenerator.java:89)
at com.intellij.openapi.command.WriteCommandAction$Simple.run(WriteCommandAction.java:238)
at com.intellij.openapi.application.RunResult.run(RunResult.java:35)
at com.intellij.openapi.command.WriteCommandAction.lambda$null$1(WriteCommandAction.java:175)
at com.intellij.openapi.application.impl.ApplicationImpl.runWriteAction(ApplicationImpl.java:1010)
at com.intellij.openapi.command.WriteCommandAction.lambda$performWriteCommandAction$2(WriteCommandAction.java:174)
at com.intellij.openapi.command.WriteCommandAction.lambda$doExecuteCommand$4(WriteCommandAction.java:214)
at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:137)
at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:105)
at com.intellij.openapi.command.WriteCommandAction.doExecuteCommand(WriteCommandAction.java:216)
at com.intellij.openapi.command.WriteCommandAction.performWriteCommandAction(WriteCommandAction.java:172)
at com.intellij.openapi.command.WriteCommandAction.execute(WriteCommandAction.java:155)
at com.nvinayshetty.DTOnator.ActionListener.UserActionListener.onGenerateButtonClick(UserActionListener.java:166)
at com.nvinayshetty.DTOnator.Ui.TabbedInputWindow.onGenerateClickWithValidFeed(TabbedInputWindow.java:146)
at com.nvinayshetty.DTOnator.Ui.JsonInputEditorPane$3.actionPerformed(JsonInputEditorPane.java:113)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$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:252)
at java.awt.Component.processMouseEvent(Component.java:6548)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3325)
at java.awt.Component.processEvent(Component.java:6313)
at java.awt.Container.processEvent(Container.java:2237)
at java.awt.Component.dispatchEventImpl(Component.java:4903)
at java.awt.Container.dispatchEventImpl(Container.java:2295)
at java.awt.Component.dispatchEvent(Component.java:4725)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4889)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4526)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4467)
at java.awt.Container.dispatchEventImpl(Container.java:2281)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4725)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:764)
at java.awt.EventQueue.access$500(EventQueue.java:98)
at java.awt.EventQueue$3.run(EventQueue.java:715)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
at java.awt.EventQueue$4.run(EventQueue.java:737)
at java.awt.EventQueue$4.run(EventQueue.java:735)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:734)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:786)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:723)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:395)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
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)