CSV Comparator / Tickets / #2 Command line give NullPointerException in compareCSVWriteResult

Martin Le Brun - 2017-11-13

FYI, the below gives the same error, so it seems not to be due to the file or other config parameters.

java -jar ./CSVComparator/CSVComparatorCLI_java8.jar -config.loglevel.console=OFF -config.loglevel.file=OFF

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xresch - 2017-11-13

Hi Martin,

this is thrown by the following line in the code:
//-------------------------------------
// Compare if both file exists and are readable
//-------------------------------------
if(new File(olderFile).canRead() && new File(youngerFile).canRead()){

Just to be sure that everything is okay with the paths, can you try to copy the .jar and the files you want to compare all in the same directory and try it again?

Cheers
xresch

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- Martin Le Brun - 2017-11-14
  
  Hi xresch
  
  Both files are readable from the same bash command line as the utility:
  
  ~ > if [[ -r ./temp/comparenew/CompFile.tab ]] ; then echo "File is
  readable"; else "file is not readable"; fi;
  File is readable
  ~ > if [[ -r ./temp/compareold/CompFile.tab ]] ; then echo "File is
  readable"; else "file is not readable"; fi;
  File is readable
  
  Martin.
  
  On Mon, Nov 13, 2017 at 5:09 PM, xresch xresch@users.sf.net wrote:
  
  Hi Martin,
  
  this is thrown by the following line in the code:
  //-------------------------------------
  // Compare if both file exists and are readable
  //-------------------------------------
  if(new File(olderFile).canRead() && new File(youngerFile).canRead()){
  
  Just to be sure that everything is okay with the paths, can you try to
  copy the .jar and the files you want to compare all in the same directory
  and try it again?
  
  Cheers
  xresch
  
  [tickets:#2] https://sourceforge.net/p/csvcomparator/tickets/2/
  Command line give NullPointerException in compareCSVWriteResult*
  
  Status: open
  Milestone: 1.0
  Created: Mon Nov 13, 2017 05:19 PM UTC by Martin Le Brun
  Last Updated: Mon Nov 13, 2017 05:50 PM UTC
  Owner: nobody
  
  When I run the command line utility from Linux (with any argument) I get a
  null pointer exception. I get the same if I use a command file as well.
  
  ~ > java -jar ./CSVComparator/CSVComparatorCLI_java8.jar
  -config.loglevel.console=ALL -config.loglevel.file=OFF
  –older.file=./temp/compareold/CompFile.tab -older.delimiter=','
  -older.label=old –younger.file=./temp/comparenew/CompFile.tab
  -younger.delimiter=',' -younger.label=new -column.identifier=ID,ID
  -result.file=./temp/compareout.txt -result.delimiter=';'
  -result.comparediff=false -result.comparediff%=false
  -result.comparestring=true
  Exception in thread "main" java.lang.reflect.InvocationTargetException
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(
  NativeMethodAccessorImpl.java:62)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(
  DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:497)
  at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.
  main(JarRsrcLoader.java:58)
  Caused by: java.lang.NullPointerException
  at java.io.File.<init>(File.java:277)
  at com.csvapi.compare.CSVAPICompare.compareCSVWriteResult(
  CSVAPICompare.java:48)
  at com.csvcomparator.cli.main.CSVComparatorCLI.main(
  CSVComparatorCLI.java:55)
  ... 5 more
  ~ > ll ./temp/comparenew/CompFile.tab
  -rwxr-xr-x 1 nobody nobody 84 Nov 11 22:03 ./temp/comparenew/CompFile.tab
  ~ > ll ./temp/compareold/CompFile.tab
  -rwxr-xr-x 1 nobody nobody 94 Nov 11 22:04 ./temp/compareold/CompFile.tab
  ~ > ll ./temp/compareout.txt
  -rw-r--r-- 1 nobody nobody 0 Nov 11 22:48 ./temp/compareout.txt</init>
  
  ~ > ll csvapi.log
  -rw-r--r-- 1 nobody nobody 0 Nov 12 10:04 csvapi.log
  
  java -version
  java version "1.8.0_45"
  Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
  Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)
  
  ~/temp > echo $JAVA_HOME
  /usr/lib/jvm/java-1.8.0-oracle-1.8.0.45-1jpp.2.el7_1.x86_64/jre
  
  I have tried three different versions of Java 8 with the same result. Any
  ideas? Thanks!
  
  Sent from sourceforge.net because you indicated interest in
  https://sourceforge.net/p/csvcomparator/tickets/2/
  
  To unsubscribe from further messages, please visit
  https://sourceforge.net/auth/subscriptions/
  
  Related
  
  Tickets: #2
  
  alternate
  
  If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
  - Martin Le Brun - 2017-11-14
    
    I also ran a basic java program and it can read the file too
    
    ~ > java Test
    canRead ./temp/comparenew/CompFile.tab
    ID,Data 1,Data 2
    1,ABC,123
    2,DEF,456
    3,HIJ,789
    4,KJM,012
    7,RST,678
    5,OPQ,345
    8,UVW,910
    
    See attached for the program
    
    On Mon, Nov 13, 2017 at 7:05 PM, Martin Le Brun martinlebrun3141@gmail.com
    wrote:
    
    Hi xresch
    
    Both files are readable from the same bash command line as the utility:
    
    ~ > if [[ -r ./temp/comparenew/CompFile.tab ]] ; then echo "File is
    readable"; else "file is not readable"; fi;
    File is readable
    ~ > if [[ -r ./temp/compareold/CompFile.tab ]] ; then echo "File is
    readable"; else "file is not readable"; fi;
    File is readable
    
    Martin.
    
    On Mon, Nov 13, 2017 at 5:09 PM, xresch xresch@users.sf.net wrote:
    
    Hi Martin,
    
    this is thrown by the following line in the code:
    //-------------------------------------
    // Compare if both file exists and are readable
    //-------------------------------------
    if(new File(olderFile).canRead() && new File(youngerFile).canRead()){
    
    Just to be sure that everything is okay with the paths, can you try to
    copy the .jar and the files you want to compare all in the same directory
    and try it again?
    
    Cheers
    xresch
    
    [tickets:#2] https://sourceforge.net/p/csvcomparator/tickets/2/
    Command line give NullPointerException in compareCSVWriteResult*
    
    Status: open
    Milestone: 1.0
    Created: Mon Nov 13, 2017 05:19 PM UTC by Martin Le Brun
    Last Updated: Mon Nov 13, 2017 05:50 PM UTC
    Owner: nobody
    
    When I run the command line utility from Linux (with any argument) I get
    a null pointer exception. I get the same if I use a command file as well.
    
    ~ > java -jar ./CSVComparator/CSVComparatorCLI_java8.jar
    -config.loglevel.console=ALL -config.loglevel.file=OFF
    –older.file=./temp/compareold/CompFile.tab -older.delimiter=','
    -older.label=old –younger.file=./temp/comparenew/CompFile.tab
    -younger.delimiter=',' -younger.label=new -column.identifier=ID,ID
    -result.file=./temp/compareout.txt -result.delimiter=';'
    -result.comparediff=false -result.comparediff%=false
    -result.comparestring=true
    Exception in thread "main" java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAcce
    ssorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMe
    thodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(
    JarRsrcLoader.java:58)
    Caused by: java.lang.NullPointerException
    at java.io.File.<init>(File.java:277)
    at com.csvapi.compare.CSVAPICompare.compareCSVWriteResult(CSVAP
    ICompare.java:48)
    at com.csvcomparator.cli.main.CSVComparatorCLI.main(CSVComparat
    orCLI.java:55)
    ... 5 more
    ~ > ll ./temp/comparenew/CompFile.tab
    -rwxr-xr-x 1 nobody nobody 84 Nov 11 22:03 ./temp/comparenew/CompFile.tab
    ~ > ll ./temp/compareold/CompFile.tab
    -rwxr-xr-x 1 nobody nobody 94 Nov 11 22:04 ./temp/compareold/CompFile.tab
    ~ > ll ./temp/compareout.txt
    -rw-r--r-- 1 nobody nobody 0 Nov 11 22:48 ./temp/compareout.txt</init>
    
    ~ > ll csvapi.log
    -rw-r--r-- 1 nobody nobody 0 Nov 12 10:04 csvapi.log
    
    java -version
    java version "1.8.0_45"
    Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
    Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)
    
    ~/temp > echo $JAVA_HOME
    /usr/lib/jvm/java-1.8.0-oracle-1.8.0.45-1jpp.2.el7_1.x86_64/jre
    
    I have tried three different versions of Java 8 with the same result. Any
    ideas? Thanks!
    
    Sent from sourceforge.net because you indicated interest in
    https://sourceforge.net/p/csvcomparator/tickets/2/
    
    To unsubscribe from further messages, please visit
    https://sourceforge.net/auth/subscriptions/
    
    Related
    
    Tickets: #2
    
    Test.java
    
    alternate
    
    If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
    - Martin Le Brun - 2017-11-14
      
      I can reproduce the exception with
      
      import java.io.*;
      
      public class Test {
      public static void main(String [] args) {
      
      // The name of the file to open. String olderFile = null; if (new File(olderFile).canRead()) { System.out.println("canRead " + olderFile); } else { System.

Command line give NullPointerException in compareCSVWriteResult

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#2 Command line give NullPointerException in compareCSVWriteResult

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