java.lang.NullPointerException

Spring JIRA | Alan Stewart | 5 years ago
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  1. 0

    When attempting to execute the bikeshop script in a non-empty directory, but with no pom or other Roo-generated files or directories, the following NPE occurs: {code} oo> script bikeshop.roo project --topLevelPackage com.springsource.bikeshop java.lang.NullPointerException at org.springframework.roo.project.MavenPathResolvingStrategy.getPathInformation(MavenPathResolvingStrategy.java:171) at org.springframework.roo.project.MavenPathResolvingStrategy.getIdentifier(MavenPathResolvingStrategy.java:213) at org.springframework.roo.project.DelegatePathResolver.getIdentifier(DelegatePathResolver.java:61) at org.springframework.roo.project.MavenOperationsImpl.createMavenPom(MavenOperationsImpl.java:167) at org.springframework.roo.project.MavenOperationsImpl.createProject(MavenOperationsImpl.java:66) at org.springframework.roo.project.MavenCommands.createProject(MavenCommands.java:54) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.roo.support.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:191) at org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy$1.callback(ProcessManagerHostedExecutionStrategy.java:49) at org.springframework.roo.process.manager.internal.DefaultProcessManager.doTransactionally(DefaultProcessManager.java:183) at org.springframework.roo.process.manager.internal.DefaultProcessManager.execute(DefaultProcessManager.java:146) at org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy.execute(ProcessManagerHostedExecutionStrategy.java:47) at org.springframework.roo.shell.AbstractShell.executeCommand(AbstractShell.java:204) at org.springframework.roo.shell.AbstractShell.executeScriptLine(AbstractShell.java:144) at org.springframework.roo.shell.AbstractShell.script(AbstractShell.java:93) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.roo.support.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:191) at org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy$1.callback(ProcessManagerHostedExecutionStrategy.java:49) at org.springframework.roo.process.manager.internal.DefaultProcessManager.doTransactionally(DefaultProcessManager.java:183) at org.springframework.roo.process.manager.internal.DefaultProcessManager.execute(DefaultProcessManager.java:146) at org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy.execute(ProcessManagerHostedExecutionStrategy.java:47) at org.springframework.roo.shell.AbstractShell.executeCommand(AbstractShell.java:204) at org.springframework.roo.shell.jline.JLineShell.promptLoop(JLineShell.java:403) at org.springframework.roo.shell.jline.JLineShell.run(JLineShell.java:158) at java.lang.Thread.run(Thread.java:680) Script required 0.087 seconds to execute Script execution aborted java.lang.IllegalStateException: Script execution aborted at org.springframework.roo.shell.AbstractShell.script(AbstractShell.java:98) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.roo.support.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:191) at org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy$1.callback(ProcessManagerHostedExecutionStrategy.java:49) at org.springframework.roo.process.manager.internal.DefaultProcessManager.doTransactionally(DefaultProcessManager.java:183) at org.springframework.roo.process.manager.internal.DefaultProcessManager.execute(DefaultProcessManager.java:146) at org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy.execute(ProcessManagerHostedExecutionStrategy.java:47) at org.springframework.roo.shell.AbstractShell.executeCommand(AbstractShell.java:204) at org.springframework.roo.shell.jline.JLineShell.promptLoop(JLineShell.java:403) at org.springframework.roo.shell.jline.JLineShell.run(JLineShell.java:158) at java.lang.Thread.run(Thread.java:680) {code} Project attached

    Spring JIRA | 5 years ago | Alan Stewart
    java.lang.NullPointerException
  2. 0

    When attempting to execute the bikeshop script in a non-empty directory, but with no pom or other Roo-generated files or directories, the following NPE occurs: {code} oo> script bikeshop.roo project --topLevelPackage com.springsource.bikeshop java.lang.NullPointerException at org.springframework.roo.project.MavenPathResolvingStrategy.getPathInformation(MavenPathResolvingStrategy.java:171) at org.springframework.roo.project.MavenPathResolvingStrategy.getIdentifier(MavenPathResolvingStrategy.java:213) at org.springframework.roo.project.DelegatePathResolver.getIdentifier(DelegatePathResolver.java:61) at org.springframework.roo.project.MavenOperationsImpl.createMavenPom(MavenOperationsImpl.java:167) at org.springframework.roo.project.MavenOperationsImpl.createProject(MavenOperationsImpl.java:66) at org.springframework.roo.project.MavenCommands.createProject(MavenCommands.java:54) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.roo.support.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:191) at org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy$1.callback(ProcessManagerHostedExecutionStrategy.java:49) at org.springframework.roo.process.manager.internal.DefaultProcessManager.doTransactionally(DefaultProcessManager.java:183) at org.springframework.roo.process.manager.internal.DefaultProcessManager.execute(DefaultProcessManager.java:146) at org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy.execute(ProcessManagerHostedExecutionStrategy.java:47) at org.springframework.roo.shell.AbstractShell.executeCommand(AbstractShell.java:204) at org.springframework.roo.shell.AbstractShell.executeScriptLine(AbstractShell.java:144) at org.springframework.roo.shell.AbstractShell.script(AbstractShell.java:93) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.roo.support.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:191) at org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy$1.callback(ProcessManagerHostedExecutionStrategy.java:49) at org.springframework.roo.process.manager.internal.DefaultProcessManager.doTransactionally(DefaultProcessManager.java:183) at org.springframework.roo.process.manager.internal.DefaultProcessManager.execute(DefaultProcessManager.java:146) at org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy.execute(ProcessManagerHostedExecutionStrategy.java:47) at org.springframework.roo.shell.AbstractShell.executeCommand(AbstractShell.java:204) at org.springframework.roo.shell.jline.JLineShell.promptLoop(JLineShell.java:403) at org.springframework.roo.shell.jline.JLineShell.run(JLineShell.java:158) at java.lang.Thread.run(Thread.java:680) Script required 0.087 seconds to execute Script execution aborted java.lang.IllegalStateException: Script execution aborted at org.springframework.roo.shell.AbstractShell.script(AbstractShell.java:98) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.roo.support.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:191) at org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy$1.callback(ProcessManagerHostedExecutionStrategy.java:49) at org.springframework.roo.process.manager.internal.DefaultProcessManager.doTransactionally(DefaultProcessManager.java:183) at org.springframework.roo.process.manager.internal.DefaultProcessManager.execute(DefaultProcessManager.java:146) at org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy.execute(ProcessManagerHostedExecutionStrategy.java:47) at org.springframework.roo.shell.AbstractShell.executeCommand(AbstractShell.java:204) at org.springframework.roo.shell.jline.JLineShell.promptLoop(JLineShell.java:403) at org.springframework.roo.shell.jline.JLineShell.run(JLineShell.java:158) at java.lang.Thread.run(Thread.java:680) {code} Project attached

    Spring JIRA | 5 years ago | Alan Stewart
    java.lang.NullPointerException
  3. 0

    Getting a nullpointer exception when switching displayables in J2ME

    Stack Overflow | 6 years ago | Pallinder
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
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  5. 0

    J2ME (Java) - Null Pointer Exception caught in Display Class

    Stack Overflow | 6 years ago | Tom
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
  6. 0

    Cloud Foundry v2 in Grails

    Stack Overflow | 2 years ago | angelo087
    java.lang.NullPointerException: Cannot invoke method getAt() on null object

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.springframework.roo.project.MavenPathResolvingStrategy.getPathInformation()
    2. org.springframework.roo
      MavenCommands.createProject
      1. org.springframework.roo.project.MavenPathResolvingStrategy.getPathInformation(MavenPathResolvingStrategy.java:171)
      2. org.springframework.roo.project.MavenPathResolvingStrategy.getIdentifier(MavenPathResolvingStrategy.java:213)
      3. org.springframework.roo.project.DelegatePathResolver.getIdentifier(DelegatePathResolver.java:61)
      4. org.springframework.roo.project.MavenOperationsImpl.createMavenPom(MavenOperationsImpl.java:167)
      5. org.springframework.roo.project.MavenOperationsImpl.createProject(MavenOperationsImpl.java:66)
      6. org.springframework.roo.project.MavenCommands.createProject(MavenCommands.java:54)
      6 frames
    3. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      4. java.lang.reflect.Method.invoke(Method.java:597)
      4 frames
    4. org.springframework.roo
      AbstractShell.script
      1. org.springframework.roo.support.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:191)
      2. org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy$1.callback(ProcessManagerHostedExecutionStrategy.java:49)
      3. org.springframework.roo.process.manager.internal.DefaultProcessManager.doTransactionally(DefaultProcessManager.java:183)
      4. org.springframework.roo.process.manager.internal.DefaultProcessManager.execute(DefaultProcessManager.java:146)
      5. org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy.execute(ProcessManagerHostedExecutionStrategy.java:47)
      6. org.springframework.roo.shell.AbstractShell.executeCommand(AbstractShell.java:204)
      7. org.springframework.roo.shell.AbstractShell.executeScriptLine(AbstractShell.java:144)
      8. org.springframework.roo.shell.AbstractShell.script(AbstractShell.java:93)
      8 frames
    5. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      4. java.lang.reflect.Method.invoke(Method.java:597)
      4 frames
    6. org.springframework.roo
      JLineShell.run
      1. org.springframework.roo.support.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:191)
      2. org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy$1.callback(ProcessManagerHostedExecutionStrategy.java:49)
      3. org.springframework.roo.process.manager.internal.DefaultProcessManager.doTransactionally(DefaultProcessManager.java:183)
      4. org.springframework.roo.process.manager.internal.DefaultProcessManager.execute(DefaultProcessManager.java:146)
      5. org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy.execute(ProcessManagerHostedExecutionStrategy.java:47)
      6. org.springframework.roo.shell.AbstractShell.executeCommand(AbstractShell.java:204)
      7. org.springframework.roo.shell.jline.JLineShell.promptLoop(JLineShell.java:403)
      8. org.springframework.roo.shell.jline.JLineShell.run(JLineShell.java:158)
      8 frames
    7. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:680)
      1 frame