매우 비정상적으로 동작하는 JavaFx 프로그램이 있습니다.텍스트 필드에서 Enter 키를 누르면 JVM이 충돌합니다.
텍스트 필드에서 Enter 키를 누르면 JVM이 충돌합니다. 이것은 this stackoverflow 질문에서 얻은 간단한 UI 프로그램입니다. 이 결백 한 찾고있는 프로그램에 무엇이 문제가 있습니까?
나는 Lubuntu 12.10
과 JDK 1.7.0_09-b05
을 실행 중입니다.
import com.sun.glass.events.KeyEvent;
import javafx.application.Application;
import static javafx.application.Application.launch;
import javafx.event.*;
import javafx.geometry.Pos;
import javafx.scene.*;
import javafx.scene.control.*;
import javafx.scene.layout.*;
import javafx.stage.*;
public class MissingDataDemo extends Application {
private static final String[] SAMPLE_TEXT = "Lorem ipsum MISSING dolor sit amet MISSING consectetur adipisicing elit sed do eiusmod tempor incididunt MISSING ut labore et dolore magna aliqua"
.split(" ");
@Override
public void start(Stage primaryStage) {
VBox textContainer = new VBox(10);
textContainer
.setStyle("-fx-background-color: cornsilk; -fx-padding: 10;");
primaryStage.setScene(new Scene(textContainer, 300, 600));
primaryStage.show();
TextLoader textLoader = new TextLoader(SAMPLE_TEXT, textContainer);
textLoader.loadText();
}
public static void main(String[] args) {
launch(args);
}
}
class TextLoader {
private final String[] lines;
private final Pane container;
TextLoader(final String[] lines, final Pane container) {
this.lines = lines;
this.container = container;
}
public void loadText() {
for (String nextText : lines) {
final Label nextLabel = new Label();
if ("MISSING".equals(nextText)) {
nextLabel.setStyle("-fx-background-color: palegreen;");
MissingTextPrompt prompt = new MissingTextPrompt(container
.getScene().getWindow());
nextText = prompt.getResult();
}
nextLabel.setText(nextText);
container.getChildren().add(nextLabel);
}
}
class MissingTextPrompt {
private final String result;
MissingTextPrompt(Window owner) {
final Stage dialog = new Stage();
dialog.setTitle("Enter Missing Text");
dialog.initOwner(owner);
dialog.initStyle(StageStyle.UTILITY);
dialog.initModality(Modality.WINDOW_MODAL);
dialog.setX(owner.getX() + owner.getWidth());
dialog.setY(owner.getY());
final TextField textField = new TextField();
final Button submitButton = new Button("Submit");
submitButton.setDefaultButton(true);
submitButton.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent t) {
dialog.close();
}
});
textField.setMinHeight(TextField.USE_PREF_SIZE);
final VBox layout = new VBox(10);
layout.setAlignment(Pos.CENTER_RIGHT);
layout.setStyle("-fx-background-color: azure; -fx-padding: 10;");
layout.getChildren().setAll(textField, submitButton);
dialog.setScene(new Scene(layout));
dialog.showAndWait();
result = textField.getText();
}
private String getResult() {
return result;
}
}
}
덤프의 일부 -
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0xb6cfa39f, pid=14093, tid=1803479872
#
# JRE version: 7.0_09-b05
# Java VM: Java HotSpot(TM) Server VM (23.5-b02 mixed mode linux-x86)
# Problematic frame:
# V [libjvm.so+0x42539f] jni_invoke_nonstatic(JNIEnv_*, JavaValue*, _jobject*, JNICallType, _jmethodID*, JNI_ArgumentPusher*, Thread*)+0x2f
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#
전체 덤프 here 사용할 수 있습니다.
편집 1 :
오라클 Java 1.7.0_25-b15
의 최신 버전으로 실행도 충돌합니다.
편집 2 :
충돌하지 않는 OpenJDK 7u9-2.3.4-0ubuntu1.12.10.1
으로 실행하지만, 다음 부여합니다 오류 -
Exception in thread "main" java.lang.RuntimeException: Exception in Application start method
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:403)
at com.sun.javafx.application.LauncherImpl.access$000(LauncherImpl.java:47)
at com.sun.javafx.application.LauncherImpl$1.run(LauncherImpl.java:115)
at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.NullPointerException
at com.sun.glass.ui.gtk.GtkApplication.enterNestedEventLoopImpl(Native Method)
at com.sun.glass.ui.gtk.GtkApplication._enterNestedEventLoop(GtkApplication.java:137)
at com.sun.glass.ui.Application.enterNestedEventLoop(Application.java:383)
at com.sun.glass.ui.EventLoop.enter(EventLoop.java:83)
at com.sun.javafx.tk.quantum.QuantumToolkit.enterNestedEventLoop(QuantumToolkit.java:520)
at javafx.stage.Stage.showAndWait(Stage.java:397)
at com.mango.proengin.ui.user.TextLoader$MissingTextPrompt.<init>(MissingDataDemo.java:96)
at com.mango.proengin.ui.user.TextLoader.loadText(MissingDataDemo.java:52)
at com.mango.proengin.ui.user.MissingDataDemo.start(MissingDataDemo.java:28)
at com.sun.javafx.application.LauncherImpl$5.run(LauncherImpl.java:319)
at com.sun.javafx.application.PlatformImpl$5.run(PlatformImpl.java:206)
at com.sun.javafx.application.PlatformImpl$4.run(PlatformImpl.java:173)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:76)
at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
at com.sun.glass.ui.gtk.GtkApplication$3$1.run(GtkApplication.java:82)
... 1 more
편집기에 코드 도구가 있습니다. 왜 pastebin에 링크합니까? 여기에 코드를 붙여주십시오. – BackSlash
JVM을 업데이트 해 보셨습니까? JVM 버전은 꽤 오래된 버전입니다. [Java 7 Update Release Notes] (http://www.oracle.com/technetwork/java/javase/7u-relnotes-515228.html) 페이지에서 최신 버전 정보를 확인할 수 있습니다. – DaoWen
@BackSlash 코드의 크기가 큽니다. 심지어 더 많은 839 라인의 JVM 덤프. –