使用javax.media.jai進行圖像轉換時，JVM崩潰

Question

在我們的應用程序中，我們使用javax.media.JAI庫來縮放和改善圖像

但是有時（十分之一），它導致VM崩潰

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007fdb6f49140b, pid=2153, tid=140580255180544
#
# JRE version: 6.0_22-b22
# Java VM: OpenJDK 64-Bit Server VM (20.0-b11 mixed mode linux-amd64 compressed oops)
# Derivative: IcedTea6 1.10.4
# Distribution: Fedora release 16 (Verne), package fedora-61.1.10.4.fc16-x86_64
# Problematic frame:
# C  [libgs.so+0x16940b]  s_DCT_set_defaults+0x8b
#
# An error report file with more information is saved as:
# /usr/share/tomcat/hs_err_pid2153.log
#
# If you would like to submit a bug report, please include
# instructions how to reproduce the bug and visit:
#   http://icedtea.classpath.org/bugzilla
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

將日志添加到代碼中有助於明確確切的行

                DebugHelper.errorLog("Start transformImage2");
        List modImages = new ArrayList();
        PageImage page = new PageImage();

        // generate rendered image.
        RenderedOp im = JAI.create("fileload", image.getFile()
                .getAbsolutePath());

        // get the width and height of original image.
        float width = im.getWidth();
        float height = im.getHeight();

        // improve the quality of image.
        DebugHelper.errorLog("Improving quality of image");
        RenderingHints qualityHints = new RenderingHints(
                RenderingHints.KEY_RENDERING,
                RenderingHints.VALUE_RENDER_QUALITY);
        qualityHints.put(RenderingHints.KEY_ANTIALIASING,

將打印“開始transformImage2”，但不會打印“改善圖像質量”。 因此，我們知道它在這3-4行中。 另外，從hs_err *文件指向浮動寬度= im.getWidth（）;。

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j  com.sun.imageio.plugins.jpeg.JPEGImageReader.initJPEGImageReader()J+0
j  com.sun.imageio.plugins.jpeg.JPEGImageReader.(Ljavax/imageio/spi/ImageReaderSpi;)V+174
j  com.sun.imageio.plugins.jpeg.JPEGImageReaderSpi.createReaderInstance(Ljava/lang/Object;)Ljavax/imageio/ImageReader;+5
j  javax.imageio.spi.ImageReaderSpi.createReaderInstance()Ljavax/imageio/ImageReader;+2
j  javax.imageio.ImageIO$ImageReaderIterator.next()Ljavax/imageio/ImageReader;+16
j  javax.imageio.ImageIO$ImageReaderIterator.next()Ljava/lang/Object;+1
j  com.sun.image.codec.jpeg.JPEGCodec$ImageIOJPEGImageDecoder.(Ljava/io/InputStream;)V+26
j  com.sun.image.codec.jpeg.JPEGCodec$ImageIOJPEGImageDecoder.(Ljava/io/InputStream;Lcom/sun/image/codec/jpeg/JPEGCodec$1;)V+2
j  com.sun.image.codec.jpeg.JPEGCodec.createJPEGDecoder(Ljava/io/InputStream;)Lcom/sun/image/codec/jpeg/JPEGImageDecoder;+6
j  com.sun.media.jai.codecimpl.JPEGImage.(Ljava/io/InputStream;Lcom/sun/media/jai/codec/ImageDecodeParam;)V+35
j  com.sun.media.jai.codecimpl.JPEGImageDecoder.decodeAsRenderedImage(I)Ljava/awt/image/RenderedImage;+29
j  com.sun.media.jai.opimage.CodecRIFUtil.create(Ljava/lang/String;Ljava/awt/image/renderable/ParameterBlock;Ljava/awt/RenderingHints;)Ljava/awt/image/RenderedImage;+184
j  com.sun.media.jai.opimage.JPEGRIF.create(Ljava/awt/image/renderable/ParameterBlock;Ljava/awt/RenderingHints;)Ljava/awt/image/RenderedImage;+4
j  sun.reflect.GeneratedMethodAccessor740.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+48
J  sun.reflect.DelegatingMethodAccessorImpl.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;
j  java.lang.reflect.Method.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+161
j  javax.media.jai.FactoryCache.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+6
j  javax.media.jai.OperationRegistry.invokeFactory(Ljava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/Object;+57
j  javax.media.jai.ThreadSafeOperationRegistry.invokeFactory(Ljava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/Object;+12
j  javax.media.jai.registry.RIFRegistry.create(Ljavax/media/jai/OperationRegistry;Ljava/lang/String;Ljava/awt/image/renderable/ParameterBlock;Ljava/awt/RenderingHints;)Ljava/awt/image/RenderedImage;+35
j  com.sun.media.jai.opimage.StreamRIF.create(Ljava/awt/image/renderable/ParameterBlock;Ljava/awt/RenderingHints;)Ljava/awt/image/RenderedImage;+191
j  sun.reflect.GeneratedMethodAccessor740.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+48
J  sun.reflect.DelegatingMethodAccessorImpl.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;
j  java.lang.reflect.Method.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+161
j  javax.media.jai.FactoryCache.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+6
j  javax.media.jai.OperationRegistry.invokeFactory(Ljava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/Object;+57
j  javax.media.jai.ThreadSafeOperationRegistry.invokeFactory(Ljava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/Object;+12
j  javax.media.jai.registry.RIFRegistry.create(Ljavax/media/jai/OperationRegistry;Ljava/lang/String;Ljava/awt/image/renderable/ParameterBlock;Ljava/awt/RenderingHints;)Ljava/awt/image/RenderedImage;+35
j  com.sun.media.jai.opimage.FileLoadRIF.create(Ljava/awt/image/renderable/ParameterBlock;Ljava/awt/RenderingHints;)Ljava/awt/image/RenderedImage;+158
j  sun.reflect.GeneratedMethodAccessor740.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+48
J  sun.reflect.DelegatingMethodAccessorImpl.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;
j  java.lang.reflect.Method.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+161
j  javax.media.jai.FactoryCache.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+6
j  javax.media.jai.OperationRegistry.invokeFactory(Ljava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/Object;+57
j  javax.media.jai.ThreadSafeOperationRegistry.invokeFactory(Ljava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/Object;+12
j  javax.media.jai.registry.RIFRegistry.create(Ljavax/media/jai/OperationRegistry;Ljava/lang/String;Ljava/awt/image/renderable/ParameterBlock;Ljava/awt/RenderingHints;)Ljava/awt/image/RenderedImage;+35
j  javax.media.jai.RenderedOp.createInstance(Z)Ljavax/media/jai/PlanarImage;+171
J  javax.media.jai.RenderedOp.createRendering()V
j  javax.media.jai.RenderedOp.getWidth()I+1
j  com.myapp.helpers.conversion.DocumentConverter.transformImage(Lcom/myapp/helpers/conversion/PageImage;Ljava/lang/String;Lcom/myapp/helpers/conversion/ImageSetting;)Ljava/util/List;+39
j  com.myapp.helpers.conversion.DocumentConverter.convertDocuments(Ljava/util/List;Ljava/lang/String;Lcom/myapp/helpers/conversion/ImageSetting;)Ljava/util/Map;+597
J  com.myapp.helpers.conversion.ConversionTask.run()V

所以我有幾個問題

1. 問題的確切原因是什么（可能是什么）？

2. 為什么錯誤不會一直出現，同一圖像有時會成功轉換而其他圖像會失敗？

3. 如何解決（當然：）？

Answer 1

我建議檢查后續的JVM版本 。

JRE version: 6.0_22-b22

該版本相對較舊，並且有連續的JRE 6版本，以及（當然）還有Java7。我懷疑，使用更高版本是緩解此問題的簡單方法。

Answer 2

好的，我很傻地向您解釋如何解決問題，但這是我會做的：

1. 停止在您的代碼中尋找錯誤，它不存在
2. 找出您的程序完全在哪一行崩潰。 開始禁用線路，看看它是否仍然崩潰。
3. 升級涉及的組件。 首先是ghostview庫，然后是jdk，然后是os。
4. 開始切換組件。 我一直在使用開源jdk遇到麻煩，也許嘗試一下切換到專有的oracle。 然后嘗試其他操作系統。

Answer 3

我認為您需要設置堆大小

請參閱http://viralpatel.net/blogs/jvm-java-increase-heap-size-setting-heap-size-jvm-heap/