Some 1.8.1 change is causing copies of large files to fail when max heap
is set to a "high" value. I got the error below with -Xmx800M. I
lowered it to 750 and it worked. The file being copied is 840M. A file
of 670M failed with -Xmx900M, but succeeded with 800.
It runs for 2 seconds and fails as soon as this task is called. Java
VisualVM shows the process uses less than 20M.
<copy file="my.zip" tofile="my.01.zip" />
Apparently the copy now needs to allocate memory, based on the size of
the file, and there isn't enough, goodnight.
Any idea what changed? It's using Java 1.6 on 32-bit Windows XP.
Thanks, Mike
BUILD FAILED
Failed to copy my.zip to my.01.zip due to Map failed
at
org.apache.tools.ant.taskdefs.Copy.doFileOperations(Copy.java:853)
at org.apache.tools.ant.taskdefs.Copy.execute(Copy.java:523)
at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
at sun.reflect.GeneratedMethodAccessor45.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:1
06)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:390)
at org.apache.tools.ant.Target.performTasks(Target.java:411)
at
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1397)
at org.apache.tools.ant.Project.executeTarget(Project.java:1366)
at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecut
or.java:41)
at
org.apache.tools.ant.Project.executeTargets(Project.java:1249)
at org.apache.tools.ant.Main.runBuild(Main.java:801)
at org.apache.tools.ant.Main.startAnt(Main.java:218)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)
Caused by: java.io.IOException: Map failed
at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:761)
at
sun.nio.ch.FileChannelImpl.transferToTrustedChannel(FileChannelImpl.java
:450)
at
sun.nio.ch.FileChannelImpl.transferTo(FileChannelImpl.java:523)
at
org.apache.tools.ant.util.ResourceUtils.copyResource(ResourceUtils.java:
475)
at
org.apache.tools.ant.util.FileUtils.copyFile(FileUtils.java:519)
at
org.apache.tools.ant.util.FileUtils.copyFile(FileUtils.java:481)
at
org.apache.tools.ant.util.FileUtils.copyFile(FileUtils.java:310)
at
org.apache.tools.ant.taskdefs.Copy.doFileOperations(Copy.java:841)
... 17 more
Caused by: java.lang.OutOfMemoryError: Map failed
at sun.nio.ch.FileChannelImpl.map0(Native Method)
at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:758)
... 24 more
