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helloShen / leetcode-helper

Save your time from building scaffolding for each leetcode problem.
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Null pointer exception #3

Closed ghost closed 5 years ago

ghost commented 5 years ago

I don't know why, but it generates the null pointer exception and therefore it cannot generate any files

PS D:\programming\twoSum> tree /f D:. │ build.xml │ problem.properties │ README.md │ └─lib leetcode-helper.jar

PS D:\programming\twoSum> ant -version Apache Ant(TM) version 1.10.5 compiled on July 10 2018 PS D:\programming\twoSum> ant generate Buildfile: D:\programming\twoSum\build.xml

generate: [echo] problem.name = two_sum [java] java.lang.NullPointerException [java] at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:194) [java] at org.apache.tools.ant.taskdefs.Java.run(Java.java:861) [java] at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:231) [java] at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:135) [java] at org.apache.tools.ant.taskdefs.Java.execute(Java.java:108) [java] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292) [java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [java] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [java] at java.lang.reflect.Method.invoke(Method.java:498) [java] at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99) [java] at org.apache.tools.ant.Task.perform(Task.java:350) [java] at org.apache.tools.ant.Target.execute(Target.java:449) [java] at org.apache.tools.ant.Target.performTasks(Target.java:470) [java] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1388) [java] at org.apache.tools.ant.Project.executeTarget(Project.java:1361) [java] at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41) [java] at org.apache.tools.ant.Project.executeTargets(Project.java:1251) [java] at org.apache.tools.ant.Main.runBuild(Main.java:834) [java] at org.apache.tools.ant.Main.startAnt(Main.java:223) [java] at org.apache.tools.ant.launch.Launcher.run(Launcher.java:284) [java] at org.apache.tools.ant.launch.Launcher.main(Launcher.java:101) [java] Caused by: java.lang.NullPointerException [java] at java.util.Properties$LineReader.readLine(Properties.java:434) [java] at java.util.Properties.load0(Properties.java:353) [java] at java.util.Properties.load(Properties.java:341) [java] at com.ciaoshen.leetcode.helper.PropertyScanner.load(PropertyScanner.java:51) [java] at com.ciaoshen.leetcode.helper.ProblemBuilder.main(ProblemBuilder.java:210) [java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [java] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [java] at java.lang.reflect.Method.invoke(Method.java:498) [java] at org.apache.tools.ant.taskdefs.ExecuteJava.run(ExecuteJava.java:218) [java] at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:155) [java] ... 21 more [java] Java Result: -1 [echo] Problem two_sum generated!

BUILD SUCCESSFUL Total time: 0 seconds

Thank you

helloShen commented 5 years ago

Just fixed. Please use PowerShell to launch the script. Do NOT use cmd.exe. Let me know if the problem remain the same in new release.

ghost commented 5 years ago

thanks, solved