Java HPROF在试图查找Maven构建内存泄漏时发出抱怨

我有一个Maven构建，它似乎偶尔会出现漏洞，导致Java进程耗尽PermGen内存（编辑），我从VisualVM了解到，每当构建一个新版本时，堆和PermGen都会显著增加。现在我想找出漏洞在哪里（编辑：而不仅仅是消除偶尔出现的异常）

这方面的标准方法似乎是让HPROF收集数据进行尸检分析。但是，这对我来说是失败的，工具无法正确解析生成的java.hprof文件

我的“mvn.bat”文件看起来像（Windows 7上的64位JVM）：

我的MAVEN_选项看起来像

MAVEN_OPTS=-agentlib:hprof=format=b

这是“mvn清洁”的结果

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（不停地、不停地）。我不熟悉hprof

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从这里开始，最好的方法是什么？

当从32位jvm切换到64位jvm时，经典的问题是PermGen异常

使用64位JVM时，需要更大的PermGen大小。 尝试使用类似于

MAVEN_OPTS=“-XX:MaxPermSize=256m”

或更高版本（如果需要）

在使用64位jvm构建大型项目时，我个人通常使用512m甚至1g。

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那些相同的项目需要32位JMV的一半。

您能显示导致问题的pom文件吗？您是在运行单元测试还是集成测试？很遗憾，我无法显示有问题的POM。有一些测试，但没有重磅。我不认为这个问题直接与maven有关，但可能Guice或我只是试图做一些不受支持的事情。请尝试将

-XX:-heapdumponootfmemoryerror

添加到

maven\u OPTS

。这应该告诉JVM生成内存转储，然后可以由探查器（如YourKit或VisualVM）进行分析。显然，我还不清楚-我已经找到了完成工作的解决方法。现在我想弄清楚原因是什么，很明显，hprof的某些方面出现了问题。

MAVEN_OPTS=-agentlib:hprof=format=b

[INFO] ------------------------------------------------------------------------
[INFO] Total time: 9.589s
[INFO] Finished at: Fri Feb 08 12:46:26 CET 2013
[INFO] Final Memory: 8M/154M
[INFO] ------------------------------------------------------------------------
Dumping Java heap ...
HPROF LIST OF ALL FIELDS:
[1] Lsun/reflect/UnsafeFieldAccessorImpl; "field" "Ljava/lang/reflect/Field;"(ty=OBJ) val=[0x00000000,0x500007e0] or [0x00000000,0x500007e0]
[2] Lsun/reflect/UnsafeFieldAccessorImpl; "fieldOffset" "I" (primType=73(I)) val=[0x00000007,0x00000070] or [0x00000007,0x00000070]
[3] Lsun/reflect/UnsafeFieldAccessorImpl; "isFinal" "Z" (primType=90(Z)) val=[0x00000007,0x7ae16501] or [0x00000007,0x7ae16501]
[4] Lsun/reflect/UnsafeStaticFieldAccessorImpl; "base" "Ljava/lang/Object;"(ty=OBJ)
[5] Lsun/reflect/UnsafeQualifiedStaticFieldAccessorImpl; "isReadOnly" "Z" (primType=90(Z))

FOLLOW REFERENCES RETURNED:
[1]: flavor=1, refKind=2, primType=0, object_index=0x500007e0, length=-1, next=0xb0013852
[2]: flavor=2, refKind=2, primType=73, object_index=0x0, length=-1, next=0xb0013851
[3]: flavor=2, refKind=2, primType=90, object_index=0x0, length=-1, next=0xb0013850
[4]: flavor=2, refKind=2, primType=90, object_index=0x0, length=-1, next=0x0

PROBLEM WITH:
[4] Lsun/reflect/UnsafeStaticFieldAccessorImpl; "base" "Ljava/lang/Object;" (primType=0( ), got 90(Z)) val=[0x00000007,0x7ae16501] or [0x00000000,0x00000000]

HPROF ERROR: Trouble with fields and heap data [hprof_reference.c:281]

HPROF LIST OF ALL FIELDS:
[1] Lsun/reflect/UnsafeFieldAccessorImpl; "field" "Ljava/lang/reflect/Field;"(ty=OBJ) val=[0x00000000,0x500007e1] or [0x00000000,0x500007e1]
[2] Lsun/reflect/UnsafeFieldAccessorImpl; "fieldOffset" "I" (primType=73(I)) val=[0x00000007,0x00000074] or [0x00000007,0x00000074]
[3] Lsun/reflect/UnsafeFieldAccessorImpl; "isFinal" "Z" (primType=90(Z)) val=[0x00000007,0x7b2c1001] or [0x00000007,0x7b2c1001]
[4] Lsun/reflect/UnsafeStaticFieldAccessorImpl; "base" "Ljava/lang/Object;"(ty=OBJ)
[5] Lsun/reflect/UnsafeQualifiedStaticFieldAccessorImpl; "isReadOnly" "Z" (primType=90(Z))

FOLLOW REFERENCES RETURNED:
[1]: flavor=1, refKind=2, primType=0, object_index=0x500007e1, length=-1, next=0xb0013836
[2]: flavor=2, refKind=2, primType=73, object_index=0x0, length=-1, next=0xb0013835
[3]: flavor=2, refKind=2, primType=90, object_index=0x0, length=-1, next=0xb0013834
[4]: flavor=2, refKind=2, primType=90, object_index=0x0, length=-1, next=0x0

PROBLEM WITH:
[4] Lsun/reflect/UnsafeStaticFieldAccessorImpl; "base" "Ljava/lang/Object;" (primType=0( ), got 90(Z)) val=[0x00000007,0x7b2c1001] or [0x00000000,0x00000000]

HPROF ERROR: Trouble with fields and heap data [hprof_reference.c:281]

HPROF LIST OF ALL FIELDS:
[1] Lsun/reflect/UnsafeFieldAccessorImpl; "field" "Ljava/lang/reflect/Field;"(ty=OBJ) val=[0x00000000,0x5002f4a1] or [0x00000000,0x5002f4a1]
[2] Lsun/reflect/UnsafeFieldAccessorImpl; "fieldOffset" "I" (primType=73(I)) val=[0x00000007,0x00000070] or [0x00000007,0x00000070]
[3] Lsun/reflect/UnsafeFieldAccessorImpl; "isFinal" "Z" (primType=90(Z)) val=[0x00000007,0x7ae16501] or [0x00000007,0x7ae16501]
[4] Lsun/reflect/UnsafeStaticFieldAccessorImpl; "base" "Ljava/lang/Object;"(ty=OBJ)
[5] Lsun/reflect/UnsafeQualifiedStaticFieldAccessorImpl; "isReadOnly" "Z" (primType=90(Z))

FOLLOW REFERENCES RETURNED:
[1]: flavor=1, refKind=2, primType=0, object_index=0x5002f4a1, length=-1, next=0xb0013a4b
[2]: flavor=2, refKind=2, primType=73, object_index=0x0, length=-1, next=0xb0013a4a
[3]: flavor=2, refKind=2, primType=90, object_index=0x0, length=-1, next=0xb0013a49
[4]: flavor=2, refKind=2, primType=90, object_index=0x0, length=-1, next=0x0