Android中的Java本机错误

我在运行时在com.artifex.mupdf.MuPDFCore.getText2Internal（本机方法）中得到Java本机的错误 . 这是日志。我似乎无法确定问题所在。我正试图在Mupdf之上编写一个包装器。如果你需要我显示一些代码，请让我知道

09-11 11:19:43.039: W/dalvikvm(3131): threadid=4: spin on suspend #1 threadid=10 (pcf=0)
09-11 11:19:43.789: W/dalvikvm(3131): threadid=4: spin on suspend #2 threadid=10 (pcf=3)
09-11 11:19:43.789: I/dalvikvm(3131): "Signal Catcher" daemon prio=5 tid=4 RUNNABLE
09-11 11:19:43.789: I/dalvikvm(3131):   | group="system" sCount=0 dsCount=0 obj=0x40510b68 self=0x173a38
09-11 11:19:43.789: I/dalvikvm(3131):   | sysTid=3136 nice=0 sched=0/0 cgrp=default handle=1207328
09-11 11:19:43.789: I/dalvikvm(3131):   at dalvik.system.NativeStart.run(Native Method)
09-11 11:19:43.789: I/dalvikvm(3131): "AsyncTask #2" prio=5 tid=10 RUNNABLE
09-11 11:19:43.789: I/dalvikvm(3131):   | group="main" sCount=1 dsCount=0 obj=0x40511508 self=0x1d3338
09-11 11:19:43.789: I/dalvikvm(3131):   | sysTid=3207 nice=0 sched=0/0 cgrp=default handle=1913968
09-11 11:19:43.859: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.getText2Internal(Native Method)
09-11 11:19:43.859: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.getText2(MuPDFCore.java:155)
09-11 11:19:43.859: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.gotoPage(MuPDFCore.java:77)
09-11 11:19:43.859: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.getPageSize(MuPDFCore.java:84)
09-11 11:19:43.859: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFPageAdapter$1.doInBackground(MuPDFPageAdapter.java:54)
09-11 11:19:43.859: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFPageAdapter$1.doInBackground(MuPDFPageAdapter.java:1)
09-11 11:19:43.859: I/dalvikvm(3131):   at android.os.AsyncTask$2.call(AsyncTask.java:185)
09-11 11:19:43.859: I/dalvikvm(3131):   at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
09-11 11:19:43.859: I/dalvikvm(3131):   at java.util.concurrent.FutureTask.run(FutureTask.java:138)
09-11 11:19:43.859: I/dalvikvm(3131):   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
09-11 11:19:43.869: I/dalvikvm(3131):   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
09-11 11:19:43.869: I/dalvikvm(3131):   at java.lang.Thread.run(Thread.java:1019)
09-11 11:19:44.619: W/dalvikvm(3131): threadid=4: spin on suspend #3 threadid=10 (pcf=3)
09-11 11:19:44.619: I/dalvikvm(3131): "Signal Catcher" daemon prio=5 tid=4 RUNNABLE
09-11 11:19:44.619: I/dalvikvm(3131):   | group="system" sCount=0 dsCount=0 obj=0x40510b68 self=0x173a38
09-11 11:19:44.619: I/dalvikvm(3131):   | sysTid=3136 nice=0 sched=0/0 cgrp=default handle=1207328
09-11 11:19:44.619: I/dalvikvm(3131):   at dalvik.system.NativeStart.run(Native Method)
09-11 11:19:44.619: I/dalvikvm(3131): "AsyncTask #2" prio=5 tid=10 RUNNABLE
09-11 11:19:44.619: I/dalvikvm(3131):   | group="main" sCount=1 dsCount=0 obj=0x40511508 self=0x1d3338
09-11 11:19:44.619: I/dalvikvm(3131):   | sysTid=3207 nice=0 sched=0/0 cgrp=default handle=1913968
09-11 11:19:46.549: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.getText2Internal(Native Method)
09-11 11:19:46.549: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.getText2(MuPDFCore.java:155)
09-11 11:19:46.549: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.gotoPage(MuPDFCore.java:77)
09-11 11:19:46.549: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.getPageSize(MuPDFCore.java:84)
09-11 11:19:46.549: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFPageAdapter$1.doInBackground(MuPDFPageAdapter.java:54)
09-11 11:19:46.549: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFPageAdapter$1.doInBackground(MuPDFPageAdapter.java:1)
09-11 11:19:46.549: I/dalvikvm(3131):   at android.os.AsyncTask$2.call(AsyncTask.java:185)
09-11 11:19:46.549: I/dalvikvm(3131):   at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
09-11 11:19:46.549: I/dalvikvm(3131):   at java.util.concurrent.FutureTask.run(FutureTask.java:138)
09-11 11:19:46.549: I/dalvikvm(3131):   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
09-11 11:19:46.549: I/dalvikvm(3131):   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
09-11 11:19:46.549: I/dalvikvm(3131):   at java.lang.Thread.run(Thread.java:1019)
09-11 11:19:47.299: W/dalvikvm(3131): threadid=4: spin on suspend #4 threadid=10 (pcf=3)
09-11 11:19:47.299: I/dalvikvm(3131): "Signal Catcher" daemon prio=5 tid=4 RUNNABLE
09-11 11:19:47.299: I/dalvikvm(3131):   | group="system" sCount=0 dsCount=0 obj=0x40510b68 self=0x173a38
09-11 11:19:47.299: I/dalvikvm(3131):   | sysTid=3136 nice=0 sched=0/0 cgrp=default handle=1207328
09-11 11:19:47.299: I/dalvikvm(3131):   at dalvik.system.NativeStart.run(Native Method)
09-11 11:19:47.299: I/dalvikvm(3131): "AsyncTask #2" prio=5 tid=10 RUNNABLE
09-11 11:19:47.299: I/dalvikvm(3131):   | group="main" sCount=1 dsCount=0 obj=0x40511508 self=0x1d3338
09-11 11:19:47.299: I/dalvikvm(3131):   | sysTid=3207 nice=0 sched=0/0 cgrp=default handle=1913968
09-11 11:19:47.319: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.getText2Internal(Native Method)
09-11 11:19:47.319: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.getText2(MuPDFCore.java:155)
09-11 11:19:47.319: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.gotoPage(MuPDFCore.java:77)
09-11 11:19:47.319: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.getPageSize(MuPDFCore.java:84)
09-11 11:19:47.319: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFPageAdapter$1.doInBackground(MuPDFPageAdapter.java:54)
09-11 11:19:47.319: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFPageAdapter$1.doInBackground(MuPDFPageAdapter.java:1)
09-11 11:19:47.319: I/dalvikvm(3131):   at android.os.AsyncTask$2.call(AsyncTask.java:185)
09-11 11:19:47.319: I/dalvikvm(3131):   at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
09-11 11:19:47.319: I/dalvikvm(3131):   at java.util.concurrent.FutureTask.run(FutureTask.java:138)
09-11 11:19:47.319: I/dalvikvm(3131):   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
09-11 11:19:47.319: I/dalvikvm(3131):   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
09-11 11:19:47.319: I/dalvikvm(3131):   at java.lang.Thread.run(Thread.java:1019)
09-11 11:19:48.069: W/dalvikvm(3131): threadid=4: spin on suspend #5 threadid=10 (pcf=3)
09-11 11:19:48.069: I/dalvikvm(3131): "Signal Catcher" daemon prio=5 tid=4 RUNNABLE
09-11 11:19:48.069: I/dalvikvm(3131):   | group="system" sCount=0 dsCount=0 obj=0x40510b68 self=0x173a38
09-11 11:19:48.069: I/dalvikvm(3131):   | sysTid=3136 nice=0 sched=0/0 cgrp=default handle=1207328
09-11 11:19:48.069: I/dalvikvm(3131):   at dalvik.system.NativeStart.run(Native Method)
09-11 11:19:48.069: I/dalvikvm(3131): "AsyncTask #2" prio=5 tid=10 RUNNABLE
09-11 11:19:48.069: I/dalvikvm(3131):   | group="main" sCount=1 dsCount=0 obj=0x40511508 self=0x1d3338
09-11 11:19:48.069: I/dalvikvm(3131):   | sysTid=3207 nice=0 sched=0/0 cgrp=default handle=1913968
09-11 11:19:48.069: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.getText2Internal(Native Method)
09-11 11:19:48.069: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.getText2(MuPDFCore.java:155)
09-11 11:19:48.069: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.gotoPage(MuPDFCore.java:77)
09-11 11:19:48.069: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.getPageSize(MuPDFCore.java:84)
09-11 11:19:48.069: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFPageAdapter$1.doInBackground(MuPDFPageAdapter.java:54)
09-11 11:19:48.069: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFPageAdapter$1.doInBackground(MuPDFPageAdapter.java:1)
09-11 11:19:48.069: I/dalvikvm(3131):   at android.os.AsyncTask$2.call(AsyncTask.java:185)
09-11 11:19:48.069: I/dalvikvm(3131):   at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
09-11 11:19:48.069: I/dalvikvm(3131):   at java.util.concurrent.FutureTask.run(FutureTask.java:138)
09-11 11:19:48.069: I/dalvikvm(3131):   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
09-11 11:19:48.069: I/dalvikvm(3131):   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
09-11 11:19:48.069: I/dalvikvm(3131):   at java.lang.Thread.run(Thread.java:1019)
09-11 11:19:48.819: W/dalvikvm(3131): threadid=4: spin on suspend #6 threadid=10 (pcf=3)
09-11 11:19:48.819: I/dalvikvm(3131): "Signal Catcher" daemon prio=5 tid=4 RUNNABLE
09-11 11:19:48.819: I/dalvikvm(3131):   | group="system" sCount=0 dsCount=0 obj=0x40510b68 self=0x173a38
09-11 11:19:48.819: I/dalvikvm(3131):   | sysTid=3136 nice=0 sched=0/0 cgrp=default handle=1207328
09-11 11:19:48.819: I/dalvikvm(3131):   at dalvik.system.NativeStart.run(Native Method)
09-11 11:19:48.819: I/dalvikvm(3131): "AsyncTask #2" prio=5 tid=10 RUNNABLE
09-11 11:19:48.819: I/dalvikvm(3131):   | group="main" sCount=1 dsCount=0 obj=0x40511508 self=0x1d3338
09-11 11:19:48.819: I/dalvikvm(3131):   | sysTid=3207 nice=0 sched=0/0 cgrp=default handle=1913968
09-11 11:19:48.829: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.getText2Internal(Native Method)
09-11 11:19:48.829: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.getText2(MuPDFCore.java:155)
09-11 11:19:48.829: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.gotoPage(MuPDFCore.java:77)
09-11 11:19:48.829: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFCore.getPageSize(MuPDFCore.java:84)
09-11 11:19:48.829: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFPageAdapter$1.doInBackground(MuPDFPageAdapter.java:54)
09-11 11:19:48.829: I/dalvikvm(3131):   at com.artifex.mupdf.MuPDFPageAdapter$1.doInBackground(MuPDFPageAdapter.java:1)
09-11 11:19:48.829: I/dalvikvm(3131):   at android.os.AsyncTask$2.call(AsyncTask.java:185)
09-11 11:19:48.829: I/dalvikvm(3131):   at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
09-11 11:19:48.829: I/dalvikvm(3131):   at java.util.concurrent.FutureTask.run(FutureTask.java:138)
09-11 11:19:48.829: I/dalvikvm(3131):   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
09-11 11:19:48.829: I/dalvikvm(3131):   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
09-11 11:19:48.829: I/dalvikvm(3131):   at java.lang.Thread.run(Thread.java:1019)

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我找到了崩溃的原因，是因为内存管理不好。我分配了大量内存，但没有释放任何内存。解决方法是简单地使用方法将本机类型中的值传递回java，而不在JNI中分配任何内存

我因为这个异常而眼睛受伤：）我找到了崩溃的原因，这是由于内存管理不好。我分配了大量内存，但没有释放任何内存。解决方法是使用方法简单地将本机类型中的值传递回java，而不在JNI中分配任何内存。