DO NOT REPLY New: - copy with filter fails on nested substitutions

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http://issues.apache.org/bugzilla/show_bug.cgi?id=41086

           Summary: copy with filter fails on nested
substitutions
           Product: Ant
           Version: 1.7.0RC1
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Core
        AssignedTo: devant.apache.org
        ReportedBy: dlipofskygmail.com


This worked with Ant 1.6.5 but fails with 1.7.0RC1.

==> build.xml <==
<project name="test" default="test"
basedir=".">
    <target name="test">
        <filter filtersfile="filter.properties"
/>
        <copy file="test.txt"
tofile="filtered.txt"
              filtering="true"
overwrite="true"/>
    </target>
</project>

==> filter.properties <==
a=aaa
b=bbb
c=a:b

==> test.txt <==
a
b
c

This is the output I get

$ ant -v
Apache Ant version 1.7.0RC1 compiled on November 5 2006
Buildfile: build.xml
Detected Java version: 1.4 in: C:jdk1.4.2jre
Detected OS: Windows XP
parsing buildfile C:srctmpbuild.xml with URI =
file:/C:/src/tmp/build.xml
Project base dir set to: C:srctmp
Build sequence for target(s) `test' is [test]
Complete build sequence is [test, ]

test:
[antlib:org.apache.tools.ant] Could not load definitions
from resource
org/apache/tools/ant/antlib.xml. It could not be found.
   [filter] Reading filters from
C:srctmpfilter.properties
Reading filters from C:srctmpfilter.properties
     [copy] Copying 1 file to C:srctmp
     [copy] Copying C:srctmptest.txt to
C:srctmpfiltered.txt
Replacing: a -> aaa
Replacing: b -> bbb
Replacing: a -> aaa

BUILD FAILED
C:srctmpbuild.xml:4: java.lang.NullPointerException
        at
org.apache.tools.ant.dispatch.DispatchUtils.execute(Dispatch
Utils.java:115)
        at org.apache.tools.ant.Task.perform(Task.java:342)
        at
org.apache.tools.ant.Target.execute(Target.java:357)
        at
org.apache.tools.ant.Target.performTasks(Target.java:385)
        at
org.apache.tools.ant.Project.executeSortedTargets(Project.ja
va:1292)
        at
org.apache.tools.ant.Project.executeTarget(Project.java:1261
)
        at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(D
efaultExecutor.java:41)
        at
org.apache.tools.ant.Project.executeTargets(Project.java:114
4)
        at org.apache.tools.ant.Main.runBuild(Main.java:698)
        at org.apache.tools.ant.Main.startAnt(Main.java:199)
        at
org.apache.tools.ant.launch.Launcher.run(Launcher.java:298)
        at
org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
Caused by: java.lang.NullPointerException
        at
org.apache.tools.ant.types.FilterSet.replaceTokens(FilterSet
.java:565)
        at
org.apache.tools.ant.types.FilterSet.iReplaceTokens(FilterSe
t.java:525)
        at
org.apache.tools.ant.types.FilterSet.replaceTokens(FilterSet
.java:576)
        at
org.apache.tools.ant.types.FilterSet.iReplaceTokens(FilterSe
t.java:525)
        at
org.apache.tools.ant.types.FilterSet.replaceTokens(FilterSet
.java:389)
        at
org.apache.tools.ant.types.FilterSetCollection.replaceTokens
(FilterSetCollection.java:78)
        at
org.apache.tools.ant.util.ResourceUtils.copyResource(Resourc
eUtils.java:311)
        at
org.apache.tools.ant.util.FileUtils.copyFile(FileUtils.java:
507)
        at
org.apache.tools.ant.util.FileUtils.copyFile(FileUtils.java:
322)
        at
org.apache.tools.ant.taskdefs.Copy.doFileOperations(Copy.jav
a:793)
        at
org.apache.tools.ant.taskdefs.Copy.execute(Copy.java:532)
        at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.j
ava:288)
        at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAcce
ssorImpl.java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMe
thodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at
org.apache.tools.ant.dispatch.DispatchUtils.execute(Dispatch
Utils.java:105)
        ... 11 more
--- Nested Exception ---
java.lang.NullPointerException
        at
org.apache.tools.ant.types.FilterSet.replaceTokens(FilterSet
.java:565)
        at
org.apache.tools.ant.types.FilterSet.iReplaceTokens(FilterSe
t.java:525)
        at
org.apache.tools.ant.types.FilterSet.replaceTokens(FilterSet
.java:576)
        at
org.apache.tools.ant.types.FilterSet.iReplaceTokens(FilterSe
t.java:525)
        at
org.apache.tools.ant.types.FilterSet.replaceTokens(FilterSet
.java:389)
        at
org.apache.tools.ant.types.FilterSetCollection.replaceTokens
(FilterSetCollection.java:78)
        at
org.apache.tools.ant.util.ResourceUtils.copyResource(Resourc
eUtils.java:311)
        at
org.apache.tools.ant.util.FileUtils.copyFile(FileUtils.java:
507)
        at
org.apache.tools.ant.util.FileUtils.copyFile(FileUtils.java:
322)
        at
org.apache.tools.ant.taskdefs.Copy.doFileOperations(Copy.jav
a:793)
        at
org.apache.tools.ant.taskdefs.Copy.execute(Copy.java:532)
        at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.j
ava:288)
        at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAcce
ssorImpl.java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMe
thodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at
org.apache.tools.ant.dispatch.DispatchUtils.execute(Dispatch
Utils.java:105)
        at org.apache.tools.ant.Task.perform(Task.java:342)
        at
org.apache.tools.ant.Target.execute(Target.java:357)
        at
org.apache.tools.ant.Target.performTasks(Target.java:385)
        at
org.apache.tools.ant.Project.executeSortedTargets(Project.ja
va:1292)
        at
org.apache.tools.ant.Project.executeTarget(Project.java:1261
)
        at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(D
efaultExecutor.java:41)
        at
org.apache.tools.ant.Project.executeTargets(Project.java:114
4)
        at org.apache.tools.ant.Main.runBuild(Main.java:698)
        at org.apache.tools.ant.Main.startAnt(Main.java:199)
        at
org.apache.tools.ant.launch.Launcher.run(Launcher.java:298)
        at
org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)

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