On Mon, 15 Mar 2021 02:01:12 GMT, Yasumasa Suenaga <ysuen...@openjdk.org> wrote:
> NPE was thrown when I set server name prefix for debugd as following: > > $ jhsdb -J-Dsun.jvm.hotspot.rmi.serverNamePrefix=test debugd --pid 781 > Attaching to process ID 781 and starting RMI services, please wait... > Error attaching to process or starting server: > sun.jvm.hotspot.debugger.DebuggerException: java.lang.NullPointerException: > Cannot invoke "String.length()" because "this.input" is null > at > jdk.hotspot.agent/sun.jvm.hotspot.RMIHelper.rebind(RMIHelper.java:78) > at > jdk.hotspot.agent/sun.jvm.hotspot.HotSpotAgent.setupDebugger(HotSpotAgent.java:379) > at > jdk.hotspot.agent/sun.jvm.hotspot.HotSpotAgent.go(HotSpotAgent.java:329) > at > jdk.hotspot.agent/sun.jvm.hotspot.HotSpotAgent.startServer(HotSpotAgent.java:215) > at > jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.runDEBUGD(SALauncher.java:431) > at > jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.main(SALauncher.java:493) > Caused by: java.lang.NullPointerException: Cannot invoke "String.length()" > because "this.input" is null > at java.base/java.net.URI$Parser.parse(URI.java:3166) > at java.base/java.net.URI.<init>(URI.java:623) > at java.rmi/java.rmi.Naming.intParseURL(Naming.java:273) > at java.rmi/java.rmi.Naming.parseURL(Naming.java:237) > at java.rmi/java.rmi.Naming.rebind(Naming.java:171) > at > jdk.hotspot.agent/sun.jvm.hotspot.RMIHelper.rebind(RMIHelper.java:64) > ... 5 more > > `serverNamePrefix` would not affect due to trivial bug. This pull request has now been integrated. Changeset: b1a225e1 Author: Yasumasa Suenaga <ysuen...@openjdk.org> URL: https://git.openjdk.java.net/jdk/commit/b1a225e1 Stats: 2 lines in 1 file changed: 0 ins; 1 del; 1 mod 8263565: NPE was thrown when sun.jvm.hotspot.rmi.serverNamePrefix was set Reviewed-by: cjplummer, amenkov ------------- PR: https://git.openjdk.java.net/jdk/pull/3000
