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Re: [Wrapper-user] NullPointerException issue with NT Service starting - please help
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From: Leif M. <le...@ta...> - 2006-05-10 14:55:52
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I don't see anything that points to the wrapper as the cause of this problem. You are attempting to pass a null reference to the ByteArrayInputStream constructor at: org.contego.backup.client.scheduler.SchedulerSet.main(SchedulerSet.java:95) Cheers, Leif region region wrote: > We are having an issue to run the NT service that was successfully installed. > Here is our wrapper.conf content: > ________________________________________________________________________ > wrapper.working.dir=../ > wrapper.java.command=%JAVA_HOME%/bin/java > wrapper.java.mainclass=org.tanukisoftware.wrapper.WrapperSimpleApp > wrapper.java.classpath.1=lib/wrapper.jar > wrapper.java.classpath.2=jars/ > wrapper.java.classpath.3=jars/safestore.jar > wrapper.java.library.path.1=lib > wrapper.app.parameter.1=org.contego.backup.client.scheduler.SchedulerSet > wrapper.console.format=PM > wrapper.console.loglevel=DEBUG > wrapper.console.flush=true > wra...@ap...@ > wrapper.logfile=logs/wrapper.log > wrapper.logfile.format=LPTM > wrapper.logfile.loglevel=DEBUG > wrapper.logfile.maxsize=0 > wrapper.logfile.maxfiles=0 > wrapper.syslog.loglevel=NONE > wrapper.ntservice.name=Scheduler > wrapper.ntservice.displayname=Scheduler Service > wrapper.ntservice.description=Manages scheduled backups > wrapper.ntservice.dependency.1= > wrapper.ntservice.starttype=AUTO_START > wrapper.ntservice.interactive=true > > ________________________________________________________________________ > > > And here is wrapper.log content we're getting when trying to run the main method of Application through the NT Service installed with .bat file: > > ________________________________________________________________________ > > DEBUG | wrapper | 2006/05/03 10:55:05 | Working directory set to: ../ > STATUS | wrapper | 2006/05/03 10:55:05 | --> Wrapper Started as Service > DEBUG | wrapper | 2006/05/03 10:55:05 | Using tick timer. > DEBUG | wrapperp | 2006/05/03 10:55:05 | server listening on port 32000. > STATUS | wrapper | 2006/05/03 10:55:05 | Launching a JVM... > DEBUG | wrapper | 2006/05/03 10:55:05 | command: "C:\Program Files\Java\jdk1.5.0_05\bin\java" -Djava.library.path="lib" -classpath "lib/wrapper.jar;jars/;jars/safestore.jar" -Dwrapper.key="gEJ_S_g9KF9ECOnf" -Dwrapper.port=32000 -Dwrapper.jvm.port.min=31000 -Dwrapper.jvm.port.max=31999 -Dwrapper.debug="TRUE" -Dwrapper.pid=3900 -Dwrapper.version="3.2.0" -Dwrapper.native_library="wrapper" -Dwrapper.service="TRUE" -Dwrapper.cpu.timeout="10" -Dwrapper.jvmid=1 org.tanukisoftware.wrapper.WrapperSimpleApp org.contego.backup.client.scheduler.SchedulerSet > DEBUG | wrapper | 2006/05/03 10:55:05 | JVM started (PID=3716) > INFO | jvm 1 | 2006/05/03 10:55:05 | WrapperManager class initialized by thread: main Using classloader: sun.misc.Launcher$AppClassLoader@cc7ad6 > INFO | jvm 1 | 2006/05/03 10:55:05 | Wrapper (Version 3.2.0) http://wrapper.tanukisoftware.org > INFO | jvm 1 | 2006/05/03 10:55:05 | > INFO | jvm 1 | 2006/05/03 10:55:05 | Wrapper Manager: JVM #1 > INFO | jvm 1 | 2006/05/03 10:55:05 | Running a 32-bit JVM. > INFO | jvm 1 | 2006/05/03 10:55:05 | Wrapper Manager: Registering shutdown hook > INFO | jvm 1 | 2006/05/03 10:55:05 | Wrapper Manager: Using wrapper > INFO | jvm 1 | 2006/05/03 10:55:05 | Load native library. One or more attempts may fail if platform specific libraries do not exist. > INFO | jvm 1 | 2006/05/03 10:55:05 | Loading native library failed: wrapper-windows-x86-32.dll Cause: java.lang.UnsatisfiedLinkError: no wrapper-windows-x86-32 in java.library.path > INFO | jvm 1 | 2006/05/03 10:55:05 | Loaded native library: wrapper.dll > INFO | jvm 1 | 2006/05/03 10:55:05 | Calling native initialization method. > INFO | jvm 1 | 2006/05/03 10:55:05 | Initializing WrapperManager native library. > INFO | jvm 1 | 2006/05/03 10:55:05 | Java Executable: C:\Program Files\Java\jdk1.5.0_05\bin\java.exe > INFO | jvm 1 | 2006/05/03 10:55:05 | Windows version: 5.1.2600 > INFO | jvm 1 | 2006/05/03 10:55:05 | Java Version : 1.5.0_05-b05 Java HotSpot(TM) Client VM > INFO | jvm 1 | 2006/05/03 10:55:05 | Java VM Vendor : Sun Microsystems Inc. > INFO | jvm 1 | 2006/05/03 10:55:05 | > INFO | jvm 1 | 2006/05/03 10:55:05 | WrapperManager.start(org.tanukisoftware.wrapper.WrapperSimpleApp@1e0cf70, args[]) called by thread: main > INFO | jvm 1 | 2006/05/03 10:55:05 | Open socket to wrapper...Wrapper-Connection > INFO | jvm 1 | 2006/05/03 10:55:05 | Opened Socket from 31000 to 32000 > INFO | jvm 1 | 2006/05/03 10:55:05 | Send a packet KEY : gEJ_S_g9KF9ECOnf > INFO | jvm 1 | 2006/05/03 10:55:05 | handleSocket(Socket[addr=localhost/127.0.0.1,port=32000,localport=31000]) > DEBUG | wrapperp | 2006/05/03 10:55:05 | accepted a socket from 127.0.0.1 on port 31000 > DEBUG | wrapperp | 2006/05/03 10:55:05 | read a packet KEY : gEJ_S_g9KF9ECOnf > DEBUG | wrapper | 2006/05/03 10:55:05 | Got key from JVM: gEJ_S_g9KF9ECOnf > DEBUG | wrapperp | 2006/05/03 10:55:05 | send a packet LOW_LOG_LEVEL : 1 > DEBUG | wrapperp | 2006/05/03 10:55:05 | send a packet PING_TIMEOUT : 30 > DEBUG | wrapperp | 2006/05/03 10:55:05 | send a packet PROPERTIES : (Property Values) > DEBUG | wrapper | 2006/05/03 10:55:05 | Start Application. > DEBUG | wrapperp | 2006/05/03 10:55:05 | send a packet START : start > INFO | jvm 1 | 2006/05/03 10:55:05 | Received a packet LOW_LOG_LEVEL : 1 > INFO | jvm 1 | 2006/05/03 10:55:05 | Wrapper Manager: LowLogLevel from Wrapper is 1 > INFO | jvm 1 | 2006/05/03 10:55:05 | Received a packet PING_TIMEOUT : 30 > INFO | jvm 1 | 2006/05/03 10:55:05 | Wrapper Manager: PingTimeout from Wrapper is 30000 > INFO | jvm 1 | 2006/05/03 10:55:05 | Received a packet PROPERTIES : (Property Values) > INFO | jvm 1 | 2006/05/03 10:55:05 | Monitoring of the JVM thread count will be delayed for 1 seconds. > INFO | jvm 1 | 2006/05/03 10:55:05 | Received a packet START : start > INFO | jvm 1 | 2006/05/03 10:55:05 | calling listener.start() > INFO | jvm 1 | 2006/05/03 10:55:05 | WrapperSimpleApp: start(args) Will wait up to 2 seconds for the main method to complete. > INFO | jvm 1 | 2006/05/03 10:55:05 | WrapperSimpleApp: invoking main method > INFO | jvm 1 | 2006/05/03 10:55:05 | pieces: null > INFO | jvm 1 | 2006/05/03 10:55:05 | > INFO | jvm 1 | 2006/05/03 10:55:05 | WrapperSimpleApp: Encountered an error running main: java.lang.NullPointerException > INFO | jvm 1 | 2006/05/03 10:55:05 | java.lang.NullPointerException > INFO | jvm 1 | 2006/05/03 10:55:05 | at java.io.ByteArrayInputStream.<init>(ByteArrayInputStream.java:89) > INFO | jvm 1 | 2006/05/03 10:55:05 | at org.contego.backup.client.scheduler.SchedulerSet.main(SchedulerSet.java:95) > INFO | jvm 1 | 2006/05/03 10:55:05 | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > INFO | jvm 1 | 2006/05/03 10:55:05 | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > INFO | jvm 1 | 2006/05/03 10:55:05 | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > INFO | jvm 1 | 2006/05/03 10:55:05 | at java.lang.reflect.Method.invoke(Method.java:585) > INFO | jvm 1 | 2006/05/03 10:55:05 | at org.tanukisoftware.wrapper.WrapperSimpleApp.run(WrapperSimpleApp.java:197) > INFO | jvm 1 | 2006/05/03 10:55:05 | at java.lang.Thread.run(Thread.java:595) > INFO | jvm 1 | 2006/05/03 10:55:05 | WrapperSimpleApp: start(args) end. Main Completed=true, exitCode=1 > INFO | jvm 1 | 2006/05/03 10:55:05 | WrapperManager.stop(1) called by thread: Wrapper-Connection > INFO | jvm 1 | 2006/05/03 10:55:05 | Send a packet STOP : 1 > DEBUG | wrapperp | 2006/05/03 10:55:05 | read a packet STOP : 1 > DEBUG | wrapper | 2006/05/03 10:55:05 | JVM requested a shutdown. (1) > DEBUG | wrapper | 2006/05/03 10:55:05 | wrapperStopProcess(1) called. > DEBUG | wrapper | 2006/05/03 10:55:05 | Sending stop signal to JVM > DEBUG | wrapperp | 2006/05/03 10:55:05 | send a packet STOP : NULL > INFO | jvm 1 | 2006/05/03 10:55:06 | Thread, Wrapper-Connection, handling the shutdown process. > INFO | jvm 1 | 2006/05/03 10:55:06 | Send a packet STOPPED : 0 > DEBUG | wrapperp | 2006/05/03 10:55:06 | read a packet STOPPED : 0 > DEBUG | wrapper | 2006/05/03 10:55:06 | JVM signalled that it was stopped. > INFO | jvm 1 | 2006/05/03 10:55:06 | Closing socket. > DEBUG | wrapperp | 2006/05/03 10:55:06 | socket read no code (closed?). > DEBUG | wrapperp | 2006/05/03 10:55:06 | server listening on port 32002. > INFO | jvm 1 | 2006/05/03 10:55:07 | calling System.exit(1) > DEBUG | wrapper | 2006/05/03 10:55:07 | JVM process exited with a code of 1, however the wrapper exit code was already 1. > DEBUG | wrapper | 2006/05/03 10:55:07 | JVM exited normally. > STATUS | wrapper | 2006/05/03 10:55:07 | <-- Wrapper Stopped > > ________________________________________________________________________ > > > Log shows that invoking the main method causes NullPointerException : > INFO | jvm 1 | 2006/05/03 10:55:05 | pieces: null > > > But invoking the same method from the command line produces the result we want: > > D:\test\cx>java -cp "D:\test\cx\jars;D:\test\cx\jars\safestore.jar" org.contego.backup.client.scheduler.SchedulerSet > pieces: [B@1af9e22 > > So pieces is not null in this case. > > The code that causes java.lang.NullPointerException is this: > > Preferences preferences = Preferences.userNodeForPackage(this.getClass()); > Preferences node = preferences.node("settings"); > byte pieces[] = new byte[0]; > pieces = node.getByteArray("0", null); > System.out.println("pieces: " + pieces); > ByteArrayInputStream bais = new ByteArrayInputStream(pieces); > > > This error is because node.getByteArray("0", null) returns null instead of byte array. It causes new ByteArrayInputStream(pieces) to return error because there is no such a constructor ByteArrayInputStream(null). > > > Please give us the right direction what to do. Except this issue everything works fine as we expected. We use first intergration method as was recommended. > > Thanks very much for help and assistance. > > > > > > ------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > Wrapper-user mailing list > Wra...@li... > https://lists.sourceforge.net/lists/listinfo/wrapper-user > > |
