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https://issues.apache.org/jira/browse/HADOOP-5561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12688817#action_12688817
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Steve Loughran commented on HADOOP-5561:
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would recommend having an Ant property javadoc.memory that is set to 512m in
the build file, but can be overridden by people with problems (or 64 bit JVMs)
without having to patch the build file. It could also be used by all build files
> Javadoc-dev ant target runs out of heap space
> ---------------------------------------------
>
> Key: HADOOP-5561
> URL: https://issues.apache.org/jira/browse/HADOOP-5561
> Project: Hadoop Core
> Issue Type: Bug
> Components: build
> Environment: OSX with 4gb of RAM
> Reporter: Jakob Homan
> Assignee: Jakob Homan
> Attachments: HADOOP-5561.patch
>
>
> The default configuration for the ant task javadoc-dev does not specify a
> maxmemory and, after churning for a while, fails with an OOM exception:
> {noformat}
> [javadoc] Constructing Javadoc information...
> [javadoc] Standard Doclet version 1.6.0_07
> [javadoc] Building tree for all the packages and classes...
> [javadoc] java.lang.OutOfMemoryError: Java heap space
> [javadoc] at java.util.LinkedHashMap.createEntry(LinkedHashMap.java:424)
> [javadoc] at java.util.LinkedHashMap.addEntry(LinkedHashMap.java:406)
> [javadoc] at java.util.HashMap.put(HashMap.java:385)
> [javadoc] at
> sun.util.resources.OpenListResourceBundle.loadLookup(OpenListResourceBundle.java:118)
> [javadoc] at
> sun.util.resources.OpenListResourceBundle.loadLookupTablesIfNecessary(OpenListResourceBundle.java:97)
> [javadoc] at
> sun.util.resources.OpenListResourceBundle.handleGetObject(OpenListResourceBundle.java:58)
> [javadoc] at
> sun.util.resources.TimeZoneNamesBundle.handleGetObject(TimeZoneNamesBundle.java:59)
> [javadoc] at java.util.ResourceBundle.getObject(ResourceBundle.java:378)
> [javadoc] at java.util.ResourceBundle.getObject(ResourceBundle.java:381)
> [javadoc] at
> java.util.ResourceBundle.getStringArray(ResourceBundle.java:361)
> [javadoc] at
> sun.util.TimeZoneNameUtility.retrieveDisplayNames(TimeZoneNameUtility.java:100)
> [javadoc] at
> sun.util.TimeZoneNameUtility.retrieveDisplayNames(TimeZoneNameUtility.java:81)
> [javadoc] at java.util.TimeZone.getDisplayNames(TimeZone.java:399)
> [javadoc] at java.util.TimeZone.getDisplayName(TimeZone.java:350)
> [javadoc] at java.util.Date.toString(Date.java:1025)
> [javadoc] at
> com.sun.tools.doclets.formats.html.markup.HtmlDocWriter.today(HtmlDocWriter.java:337)
> [javadoc] at
> com.sun.tools.doclets.formats.html.HtmlDocletWriter.printHtmlHeader(HtmlDocletWriter.java:281)
> [javadoc] at
> com.sun.tools.doclets.formats.html.ClassWriterImpl.writeHeader(ClassWriterImpl.java:122)
> [javadoc] at
> com.sun.tools.doclets.internal.toolkit.builders.ClassBuilder.buildClassHeader(ClassBuilder.java:164)
> [javadoc] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> [javadoc] at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> [javadoc] at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> [javadoc] at java.lang.reflect.Method.invoke(Method.java:597)
> [javadoc] at
> com.sun.tools.doclets.internal.toolkit.builders.ClassBuilder.invokeMethod(ClassBuilder.java:101)
> [javadoc] at
> com.sun.tools.doclets.internal.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:90)
> [javadoc] at
> com.sun.tools.doclets.internal.toolkit.builders.ClassBuilder.buildClassDoc(ClassBuilder.java:124)
> [javadoc] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> [javadoc] at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> [javadoc] at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> [javadoc] at java.lang.reflect.Method.invoke(Method.java:597)
> [javadoc] at
> com.sun.tools.doclets.internal.toolkit.builders.ClassBuilder.invokeMethod(ClassBuilder.java:101)
> [javadoc] at
> com.sun.tools.doclets.internal.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:90)
> {noformat}
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