Question

在Swing应用程序中，一些UI操作事件在执行时滞后和UI，并冻结几秒钟。当试图使用

检查

ThreadInfo  MonitorInfo[] monitors = threadInfo.getLockedMonitors();

和

StackTraceElement[] stackElements = threadInfo.getStackTrace();

显示和连续..到组件的行。

仅在webstart

中发生

例如：

**HOLDS MONITORS:** [java.util.zip.ZStreamRef@a4f0208, 
com.sun.deploy.cache.CacheEntry@2788c4ea, 
com.sun.deploy.cache.CachedJarFile@294f3e6b, 
com.sun.jnlp.JNLPClassLoader@5ce11cce, 
javax.swing.plaf.basic.DefaultMenuLayout@d096bf8, 
java.awt.Component$AWTTreeLock@285a2772]
STACK TRACE:
java.util.zip.Inflater.inflateBytes(Native Method)
java.util.zip.Inflater.inflate(Unknown Source)
java.util.zip.InflaterInputStream.read(Unknown Source)
java.util.jar.JarVerifier$VerifierStream.read(Unknown Source)
com.sun.deploy.security.JarVerifier.readAndMaybeSaveStreamTo(Unknown
Source)
com.sun.deploy.security.JarVerifier.authenticateJarEntry(Unknown Source)
com.sun.deploy.security.EnhancedJarVerifier.validate(Unknown Source)
com.sun.deploy.cache.CacheEntry$3.run(Unknown Source)
com.sun.deploy.cache.CacheEntry$3.run(Unknown Source)
java.security.AccessController.doPrivileged(Native Method)
com.sun.deploy.cache.CacheEntry.getJarSigningData(Unknown Source)
com.sun.deploy.cache.CachedJarFile.getSigningData(Unknown Source)
com.sun.deploy.cache.CachedJarFile$JarFileEntry.getCodeSigners(Unknown
Source)
com.sun.deploy.security.DeployURLClassPath$JarLoader$2.getCodeSigners(
Unknown Source)
java.net.URLClassLoader.defineClass(Unknown Source)
java.net.URLClassLoader.access$100(Unknown Source)
java.net.URLClassLoader$1.run(Unknown Source)
java.net.URLClassLoader$1.run(Unknown Source)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(Unknown Source)
com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
java.lang.ClassLoader.loadClass(Unknown Source)
com.sun.jnlp.JNLPClassLoader.loadClass(Unknown Source)
java.lang.ClassLoader.loadClass(Unknown Source)

Answer 1

您是否尝试过在不同的线程中调用这些方法？因为你使用Swing，它主要是线程安全的。整个显示器是冻结还是只是窗口？

线程很简单，如果你一直在避免它们：

Thread thread = new Thread(() -> intensiveMethod());
thread.start();

intensiveMethod是您调用的冻结监视器的方法。如果不是你调用它，请尝试安装最新的JRE和JDK。

Java事件队列延迟并保持监视器几秒钟

1 个答案: