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From: "slatfatf at gmx dot de" <gcc-bugzilla@gcc.gnu.org>
To: java-prs@gcc.gnu.org
Subject: [Bug libgcj/58414] New: String.format("%9d",(Long)null) returns
 null-pointer exception
Date: Fri, 13 Sep 2013 15:45:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58414

            Bug ID: 58414
           Summary: String.format("%9d",(Long)null) returns null-pointer
                    exception
           Product: gcc
           Version: 4.6.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libgcj
          Assignee: unassigned at gcc dot gnu.org
          Reporter: slatfatf at gmx dot de

Created attachment 30817
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30817&action=edit
minimal example

String.format("%9d",(Long)null) returns null pointer exception but it should
return the text "     null".

GCJ Returns the following:

$ gcj --version
gcj (Ubuntu/Linaro 4.6.3-1ubuntu2) 4.6.3
$ gcj -c src/BugReport.javajmueller@calculon:~/workspace/gcjTest$ gcj
--main=BugReport -o BugReport BugReport.o 
$ ./BugReport 
The programm should return:
     null        10
but unfortunately it crashes:
Exception in thread "main" java.lang.NullPointerException
   at java.util.Formatter.basicIntegralConversion(libgcj.so.12)
   at java.util.Formatter.decimalConversion(libgcj.so.12)
   at java.util.Formatter.format(libgcj.so.12)
   at java.util.Formatter.format(libgcj.so.12)
   at java.lang.String.format(libgcj.so.12)
   at java.lang.String.format(libgcj.so.12)
   at BugReport.main(BugReport)



Whereas OpenJDK returns:

$ /usr/lib/jvm/java-7-openjdk-amd64/bin/java -version
java version "1.7.0_25"
OpenJDK Runtime Environment (IcedTea 2.3.10) (7u25-2.3.10-1ubuntu0.12.04.2)
OpenJDK 64-Bit Server VM (build 23.7-b01, mixed mode)
$ /usr/lib/jvm/java-7-openjdk-amd64/bin/javac BugReport.java 
$ /usr/lib/jvm/java-7-openjdk-amd64/bin/java BugReport
The programm should return:
     null        10
but unfortunately it crashes:
     null        10