Java1.5+ .server VM 优化异常堆栈显示

在JDK 1.5及后续版本中,默认情况下在server模式下会针对频繁出现的异常进行优化处理,隐藏异常堆栈信息。这可能干扰问题诊断。本文介绍如何通过设置-XX:-OmitStackTraceInFastThrow来禁用此优化。

在jdk1。5+后续版本,JDK为了性能会做一个优化,在jdk server模式下默认开启针对频繁显示的异常,会进行优化处理,不显示异常堆栈信息。

这样对解决问题会有些干扰。

解决方法,设置-XX:-OmitStackTraceInFastThrow。其相反的操为作-XX:+OmitStackTraceInFastThrow。

备记。

PackageManager: System package ecarx.ads no longer exists; it's data will be wiped[2025-07-18 10:21:15.406] 01-01 08:00:12.782 1358 1358 I PackageManager: Finished scanning system apps. Time: 133 ms, packageCount: 74 , timePerPackage: 1 , cached: 128[2025-07-18 10:21:15.406] 01-01 08:00:12.786 1358 1358 E System : ******************************************[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E System : ************ Failure starting system services[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E System : java.lang.NullPointerException: Attempt to read from field 'com.android.server.pm.PackageSignatures com.android.server.pm.PackageSettingBase.signatures' on a null object reference[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E System : at com.android.server.pm.PackageManagerService.assertPackageIsValid(PackageManagerService.java:11584)[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E System : at com.android.server.pm.PackageManagerService.scanPackageNewLI(PackageManagerService.java:10427)[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E System : at com.android.server.pm.PackageManagerService.addForInitLI(PackageManagerService.java:9192)[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E System : at com.android.server.pm.PackageManagerService.scanPackageChildLI(PackageManagerService.java:8881)[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E System : at com.android.server.pm.PackageManagerService.scanDirLI(PackageManagerService.java:8720)[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E System : at com.android.server.pm.PackageManagerService.scanDirTracedLI(PackageManagerService.java:8673)[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E System : at com.android.server.pm.PackageManagerService.<init>(PackageManagerService.java:2977)[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E System : at com.android.server.pm.PackageManagerService.main(PackageManagerService.java:2378)[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E System : at com.android.server.SystemServer.startBootstrapServices(SystemServer.java:649)[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E System : at com.android.server.SystemServer.run(SystemServer.java:450)[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E System : at com.android.server.SystemServer.main(SystemServer.java:311)[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E System : at java.lang.reflect.Method.invoke(Native Method)[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E System : at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E System : at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:891)[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E Zygote : System zygote died with exception[2025-07-18 10:21:15.406] 01-01 08:00:12.787 1358 1358 E Zygote : java.lang.NullPointerException: Attempt to read from field 'com.android.server.pm.PackageSignatures com.android.server.pm.PackageSettingBase.signatures' on a null object reference[2025-07-18 10:21:15.437] 01-01 08:00:12.787 1358 1358 E Zygote : at com.android.server.pm.PackageManagerService.assertPackageIsValid(PackageManagerService.java:11584)[2025-07-18 10:21:15.437] 01-01 08:00:12.787 1358 1358 E Zygote : at com.android.server.pm.PackageManagerService.scanPackageNewLI(PackageManagerService.java:10427)[2025-07-18 10:21:15.437] 01-01 08:00:12.787 1358 1358 E Zygote : at com.android.server.pm.PackageManagerService.addForInitLI(PackageManagerService.java:9192)[2025-07-18 10:21:15.437] 01-01 08:00:12.787 1358 1358 E Zygote : at com.android.server.pm.PackageManagerService.scanPackageChildLI(PackageManagerService.java:8881)[2025-07-18 10:21:15.437] 01-01 08:00:12.787 1358 1358 E Zygote : at com.android.server.pm.PackageManagerService.scanDirLI(PackageManagerService.java:8720)[2025-07-18 10:21:15.437] 01-01 08:00:12.787 1358 1358 E Zygote : at com.android.server.pm.PackageManagerService.scanDirTracedLI(PackageManagerService.java:8673)[2025-07-18 10:21:15.437] 01-01 08:00:12.787 1358 1358 E Zygote : at com.android.server.pm.PackageManagerService.<init>(PackageManagerService.java:2977)[2025-07-18 10:21:15.437] 01-01 08:00:12.787 1358 1358 E Zygote : at com.android.server.pm.PackageManagerService.main(PackageManagerService.java:2378)[2025-07-18 10:21:15.437] 01-01 08:00:12.787 1358 1358 E Zygote : at com.android.server.SystemServer.startBootstrapServices(SystemServer.java:649)[2025-07-18 10:21:15.437] 01-01 08:00:12.787 1358 1358 E Zygote : at com.android.server.SystemServer.run(SystemServer.java:450)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E Zygote : at com.android.server.SystemServer.main(SystemServer.java:311)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E Zygote : at java.lang.reflect.Method.invoke(Native Method)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E Zygote : at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E Zygote : at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:891)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 D AndroidRuntime: Shutting down VM[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E AndroidRuntime: *** FATAL EXCEPTION IN SYSTEM PROCESS: main[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E AndroidRuntime: java.lang.NullPointerException: Attempt to read from field 'com.android.server.pm.PackageSignatures com.android.server.pm.PackageSettingBase.signatures' on a null object reference[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E AndroidRuntime: at com.android.server.pm.PackageManagerService.assertPackageIsValid(PackageManagerService.java:11584)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E AndroidRuntime: at com.android.server.pm.PackageManagerService.scanPackageNewLI(PackageManagerService.java:10427)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E AndroidRuntime: at com.android.server.pm.PackageManagerService.addForInitLI(PackageManagerService.java:9192)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E AndroidRuntime: at com.android.server.pm.PackageManagerService.scanPackageChildLI(PackageManagerService.java:8881)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E AndroidRuntime: at com.android.server.pm.PackageManagerService.scanDirLI(PackageManagerService.java:8720)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E AndroidRuntime: at com.android.server.pm.PackageManagerService.scanDirTracedLI(PackageManagerService.java:8673)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E AndroidRuntime: at com.android.server.pm.PackageManagerService.<init>(PackageManagerService.java:2977)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E AndroidRuntime: at com.android.server.pm.PackageManagerService.main(PackageManagerService.java:2378)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E AndroidRuntime: at com.android.server.SystemServer.startBootstrapServices(SystemServer.java:649)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E AndroidRuntime: at com.android.server.SystemServer.run(SystemServer.java:450)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E AndroidRuntime: at com.android.server.SystemServer.main(SystemServer.java:311)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)[2025-07-18 10:21:15.468] 01-01 08:00:12.787 1358 1358 E AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)[2025-07-18 10:21:15.500] 01-01 08:00:12.787 1358 1358 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:891)[2025-07-18 10:21:15.500] 01-01 08:00:12.788 1358 1358 E AndroidRuntime: Error reporting crash[2025-07-18 10:21:15.500] 01-01 08:00:12.788 1358 1358 E AndroidRuntime: java.lang.NullPointerException: Attempt to invoke interface method 'void android.app.IActivityManager.handleApplicationCrash(android.os.IBinder, android.app.ApplicationErrorReport$ParcelableCrashInfo)' on a null object reference[2025-07-18 10:21:15.500] 01-01 08:00:12.788 1358 1358 E AndroidRuntime: at com.android.internal.os.RuntimeInit$KillApplicationHandler.uncaughtException(RuntimeInit.java:143)[2025-07-18 10:21:15.500] 01-01 08:00:12.788 1358 1358 E AndroidRuntime: at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:1068)[2025-07-18 10:21:15.500] 01-01 08:00:12.788 1358 1358 E AndroidRuntime: at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:1063)[2025-07-18 10:21:15.500] 01-01 08:00:12.788 1358 1358 E AndroidRuntime: at java.lang.Thread.dispatchUncaughtException(Thread.java:1955)[2025-07-18 10:21:15.500] 01-01 08:00:12.788 1358 1358 I Process : Sending signal. PID: 1358 SIG: 9[2025-07-18 10:21:15.500]
07-19
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