| Bug ID: | 6526175 |
| Votes | 0 |
| Synopsis | Compiler throws BufferOverflowException should say that it ran out of memory |
| Category | java:compiler |
| Reported Against | |
| Release Fixed | |
| State | 5-Cause Known, request for enhancement |
| Priority: | 3-Medium |
| Related Bugs | |
| Submit Date | 16-FEB-2007 |
| Description | FULL PRODUCT VERSION :java version "1.6.0"Java(TM) SE Runtime Environment (build 1.6.0-b105)Java HotSpot(TM) Client VM (build 1.6.0-b105, mixed mode, sharing)ADDITIONAL OS VERSION INFORMATION :windows xp service pack 2A DESCRIPTION OF THE PROBLEM :i use maven to compile struts source code , it always throw the BufferOverflowException.ERROR MESSAGES/STACK TRACES THAT OCCUR :java.nio.BufferOverflowException at java.nio.Buffer.nextPutIndex(Buffer.java:495) at java.nio.HeapCharBuffer.put(HeapCharBuffer.java:145) at com.sun.tools.javac.util.DefaultFileManager.decode(DefaultFileManager.java:726) at com.sun.tools.javac.util.DefaultFileManager.access$300(DefaultFileManager.java:72) at com.sun.tools.javac.util.DefaultFileManager$RegularFileObject.getCharContent(DefaultFileManager.java:1243) at com.sun.tools.javac.util.DefaultFileManager$RegularFileObject.getCharContent(DefaultFileManager.java:1142) at com.sun.tools.javac.main.JavaCompiler.readSource(JavaCompiler.java:483) at com.sun.tools.javac.main.JavaCompiler.parse(JavaCompiler.java:550) at com.sun.tools.javac.main.JavaCompiler.parseFiles(JavaCompiler.java:801) at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:727) at com.sun.tools.javac.main.Main.compile(Main.java:353) at com.sun.tools.javac.main.Main.compile(Main.java:279) at com.sun.tools.javac.main.Main.compile(Main.java:270) at com.sun.tools.javac.Main.compile(Main.java:87) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.codehaus.plexus.compiler.javac.JavacCompiler.compileInProcess(JavacCompiler.java:400) at org.codehaus.plexus.compiler.javac.JavacCompiler.compile(JavacCompiler.java:136) at org. customer .maven.plugin.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:483) at org. customer .maven.plugin.CompilerMojo.execute(CompilerMojo.java:111) at org. customer .maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:412) at org. customer .maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:534) at org. customer .maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:475) at org. customer .maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:454) at org. customer .maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:306) at org. customer .maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:273) at org. customer .maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:140) at org. customer .maven.DefaultMaven.doExecute(DefaultMaven.java:322) at org. customer .maven.DefaultMaven.execute(DefaultMaven.java:115) at org. customer .maven.cli.MavenCli.main(MavenCli.java:256) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315) at org.codehaus.classworlds.Launcher.launch(Launcher.java:255) at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)REPRODUCIBILITY :This bug can be reproduced always.Posted Date : 2007-02-16 22:55:14.0 |
| Work Around | N/A |
| Evaluation | This is not a bug in the compiler. The compiler runs out of memory and theresolution is to increase heap size.However, the compiler should provide better diagnostics for such problems andI have accepted this as a request for enhancement |
题：
在使用maven构建Java开源项目，有时候会遇到BufferOverflowException异常(异常详细信息见后面)。
是Bug吗？
在sun的网站上有jdk 1.4.2和jdk 1.6.0 的bug报告,其实这个问题在 jdk 1.5.0_10和jdk 1.5.0_11中也有.
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6526175
虽然sun不认为这是一个bug,解决建议是增加heap size,就是设置环境变量,增加内存的使用参数值;经过测试,这种解决方法不能有效消除错误的产生。
其他人是如何解决的？
从google中找到在其他的apache的项目中出现过同样的异常，但是都没能解决。
问题产生的原因？
可能原因是由于字符集使用GBK、UTF-8或者UTF-16导致使用多字节存放字符，内存使用增加，堆(heap)的尺寸无法提供程序所需的空间，造成异常。更深入的分析还在进行中。
解决方法：
将操作系统的区域和语言选项中的区域设置为 English 即可！
辅助的方法是在系统环境变量中增加设置： MAVEN_OPTS=-Xmx512m
