https://bz.apache.org/bugzilla/show_bug.cgi?id=65539
Bug ID: 65539
Summary: javac task parses command line arguments incorrectly
Product: Ant
Version: 1.10.11
Hardware: PC
OS: All
Status: NEW
Severity: regression
Priority: P2
Component: Core tasks
Assignee: notifications@ant.apache.org
Reporter: seancle...@ie.ibm.com
Target Milestone: ---
We are moving from Apache Ant 1.10.6 to Apache 1.10.11 and we have noticed a
change in behaviour with the javac task on Linux and Windows builds which,
specifically on Windows causes a 'CreateProcess error=206, The filename or
extension is too long' error to occur. This appears to have been introduced in
Apache Ant 1.10.7 but we can still see it in 1.10.11.
Has there been changes made around the javac task between Ant 1.10.6 and 1.10.7
that might account for the changes below
Our javac task looks like this:
<javac
memoryMaximumSize="2048m"
memoryInitialSize="2048m"
fork="yes"
srcdir="C:\projectLocation\build\src"
destdir="C:\projectLocation\build\classes"
debug="on"
includeantruntime="false"
deprecation="true"
debuglevel="lines,vars,source"
classpathref="compile.cp">
<compilerarg value="-Xbootclasspath/p:${toString:xml.cp}" />
<compilerarg value="-Xmaxwarns"/>
<compilerarg value="${cmp.maxwarnings}"/>
<compilerarg line="${cmp.compilerarg}"/>
</javac>
When we run the task with Ant 1.10.6 the compilation arguments on a verbose
output looks like this:
[javac] Compilation arguments:
[javac] '-J-Xms2048m'
[javac] '-J-Xmx2048m'
[javac] '-deprecation'
[javac] '-d'
[javac] 'C:\projectLocation\build\classes\'
[javac] '-classpath'
[javac] '<<compile.cp>>' //This expands on the output to include the full
list of Jars in the compile.cp classpathref
[javac] '-sourcepath'
[javac] 'C:\projectLocation\build\src'
[javac] '-g:lines,vars,source'
[javac] '-Xbootclasspath/p:${toString:xml.cp}' //This expands on the output
to include the full list of Jars in the xml.cp classpathref
[javac] '-Xmaxwarns'
[javac] '${cmp.maxwarnings}'
When we run on the same environment and change the Ant version between 1.10.7
and 1.10.11 the compilation arguments change to:
[javac] Compilation arguments:
[javac] '-J-ms2048m' \\Change 1
[javac] '-J-mx2048m' \\Change 2
[javac] '-deprecation'
[javac] '-d'
[javac] 'C:\projectLocation\build\classes\'
[javac] '-classpath'
[javac] '<<compile.cp>> + C:\projectLocation\build\src' \\Change #3
[javac] '-g' \\ Change #4
[javac] '-Xbootclasspath/p:${toString:xml.cp}'
[javac] '-Xmaxwarns'
[javac] '${cmp.maxwarnings}'
Changes seen in verbose output:
1. memoryMaximumSize is being passed to the command line as -J-ms2048m
instead of -J-Xms2048m
2. memoryInitialSize is being passed to the command line as -J-ms2048m
instead of -J-Xms2048m
3. debuglevel is set to blank instead of lines,vars,source
4. The classpath is appended with the source directory which is new behaviour
from Ant 1.10.7+
5. sourcepath is not being set in the compilation arguments from Ant 1.10.7+
Actual results:
On Windows, we are getting the 'Create Process error=206' returned and the
javac task fails with no Java files compiled in to the destination directory
============
[transform] Clearing cached class loaders....
[transform] Cached class loaders cleared.
An error has occurred executing the build.
BUILD FAILED
C:\IBM\Curam\Development\CuramCDEJ\bin\build.xml:1152: Error running
C:\IBM\WebSphere\AppServer\java\8.0\bin\javac.exe compiler
at
org.apache.tools.ant.taskdefs.compilers.DefaultCompilerAdapter.executeExternalCompile(DefaultCompilerAdapter.java:594)
at
org.apache.tools.ant.taskdefs.compilers.JavacExternal.execute(JavacExternal.java:74)
at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1388)
at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:1117)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:299)
at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
at java.lang.reflect.Method.invoke(Method.java:508)
at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
at org.apache.tools.ant.Task.perform(Task.java:350)
at org.apache.tools.ant.Target.execute(Target.java:449)
at org.apache.tools.ant.Target.performTasks(Target.java:470)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1401)
at org.apache.tools.ant.Project.executeTarget(Project.java:1374)
at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1264)
at org.apache.tools.ant.Main.runBuild(Main.java:818)
at org.apache.tools.ant.Main.startAnt(Main.java:223)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:284)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:101)
Caused by: java.io.IOException: Cannot run program
"C:\IBM\WebSphere\AppServer\java\8.0\bin\javac.exe" (in directory
"C:\IBM\Curam\Development\webclient"): CreateProcess error=206, The filename or
extension is too long
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1059)
at java.lang.Runtime.exec(Runtime.java:631)
at
org.apache.tools.ant.taskdefs.launcher.Java13CommandLauncher.exec(Java13CommandLauncher.java:58)
at org.apache.tools.ant.taskdefs.Execute.launch(Execute.java:424)
at org.apache.tools.ant.taskdefs.Execute.execute(Execute.java:438)
at
org.apache.tools.ant.taskdefs.compilers.DefaultCompilerAdapter.executeExternalCompile(DefaultCompilerAdapter.java:591)
... 19 more
Caused by: java.io.IOException: CreateProcess error=206, The filename or
extension is too long
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(ProcessImpl.java:455)
at java.lang.ProcessImpl.start(ProcessImpl.java:151)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1040)
... 24 more
Total time: 2 minutes 5 seconds
============
On Linux, the Java files are actually compiled in to the destination directory
and the javac task completes without issue but the same changed compile
arguments are being returned when verbose output is turned on when using Ant
1.10.7+.
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