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Eric Milles commented on GROOVY-8295: ------------------------------------- I did a little digging on this one. It appears that the {{@file.txt}} command line option of Groovyc (aka {{org.codehaus.groovy.tools.FileSystemCompiler}}) is for the list of source files only. So I took another approach to the problem. Since the classpath is the bit that is so very long (and is listed 2 times when running in forked mode), I tried replacing the absolute path of the executable's working directory. The change is actually quite small. Replace the 2 occurrences of {{commandLineList.add(classpath.toString());}} with {{commandLineList.add(classpath.toString().replace(getProject().getBaseDir().getAbsolutePath(), "."));}}. This can reduce a classpath like: {code} C:\Users\user.home\project.directory\build\JavaClasses;C:\Users\user.home\project.directory\build\IvyLibraries\master\commons-codec-1.10.jar;C:\Users\user.home\project.directory\build\IvyLibraries\master\commons-collections4-4.1.jar;C:\Users\user.home\project.directory\build\IvyLibraries\master\commons-lang3-3.6.jar;C:\Users\user.home\project.directory\build\IvyLibraries\master\db-5.1.19.jar;C:\Users\user.home\project.directory\build\IvyLibraries\master\groovy-all-2.4.12.jar;C:\Users\user.home\project.directory\build\IvyLibraries\master\guava-22.0.jar;C:\Users\user.home\project.directory\build\IvyLibraries\master\infra-berkeleyloader-28.5.0.jar;C:\Users\user.home\project.directory\build\IvyLibraries\master\infra-logging-31.1.0.jar;C:\Users\user.home\project.directory\build\IvyLibraries\master\joda-time-2.9.9.jar;C:\Users\user.home\project.directory\build\IvyLibraries\master\json-20080701.jar;C:\Users\user.home\project.directory\build\IvyLibraries\master\log4j-1.2.17.jar {code} to {code} .\build\JavaClasses;;.\build\IvyLibraries\master\commons-codec-1.10.jar;.\build\IvyLibraries\master\commons-collections4-4.1.jar;.\build\IvyLibraries\master\commons-lang3-3.6.jar;.\build\IvyLibraries\master\db-5.1.19.jar;.\build\IvyLibraries\master\groovy-all-2.4.12.jar;.\build\IvyLibraries\master\guava-22.0.jar;.\build\IvyLibraries\master\infra-berkeleyloader-28.5.0.jar;.\build\IvyLibraries\master\infra-logging-31.1.0.jar;.\build\IvyLibraries\master\joda-time-2.9.9.jar;.\build\IvyLibraries\master\json-20080701.jar;.\build\IvyLibraries\master\log4j-1.2.17.jar {code} The effect is quite significant for a project with dozens of dependencies that is built in a deeply nested directory on the file system. > Groovyc ant task can overflow Windows command line if classpath is large > ------------------------------------------------------------------------ > > Key: GROOVY-8295 > URL: https://issues.apache.org/jira/browse/GROOVY-8295 > Project: Groovy > Issue Type: Bug > Components: Ant integration > Environment: Windows > Reporter: Eric Milles > > The groovyc ant adapter tries to account for the 32K command line length > limit on windows in its addSourceFiles method. However, if the command line > gets long for other reasons -- we include a number of libraries in our > compiled projects -- the command line can still be overflown. > This results in: > {code} > CompileAntScript.xml:129: Error running forked groovyc. > at org.codehaus.groovy.ant.Groovyc.runForked(Groovyc.java:1121) > at org.codehaus.groovy.ant.Groovyc.compile(Groovyc.java:1214) > at org.codehaus.groovy.ant.Groovyc.execute(Groovyc.java:831) > Caused by: java.io.IOException: Cannot run program "C:\Program > Files\Java\jdk1.8.0_60\jre\bin\java": CreateProcess error=206, The filename > or extension is too long > at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048) > at java.lang.Runtime.exec(Runtime.java:620) > at > org.apache.tools.ant.taskdefs.Execute$Java13CommandLauncher.exec(Execute.java:862) > at org.apache.tools.ant.taskdefs.Execute.launch(Execute.java:481) > at org.apache.tools.ant.taskdefs.Execute.execute(Execute.java:495) > at org.codehaus.groovy.ant.Groovyc.runForked(Groovyc.java:1119) > ... 31 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:386) > at java.lang.ProcessImpl.start(ProcessImpl.java:137) > at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029) > ... 36 more > {code} > Would it be possible to add command line length checking to {{runForked}} > instead of {{addSourceFiles}} and use a command file for groovyc to prevent > command line overflow? Without this, we are having to use a lot of verbose > workarounds in Ant. > https://github.com/apache/groovy/blob/master/subprojects/groovy-ant/src/main/java/org/codehaus/groovy/ant/Groovyc.java -- This message was sent by Atlassian JIRA (v6.4.14#64029)