[ https://issues.apache.org/jira/browse/NETBEANS-4618?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated NETBEANS-4618: ------------------------------------- Labels: pull-request-available (was: ) > HeapFactory cannot process multi heap segment files > --------------------------------------------------- > > Key: NETBEANS-4618 > URL: https://issues.apache.org/jira/browse/NETBEANS-4618 > Project: NetBeans > Issue Type: Bug > Components: profiler - Base > Affects Versions: 12.0, 12.0.1 > Reporter: Jaroslav Tulach > Priority: Major > Labels: pull-request-available > Attachments: multiheapsegment.hprof, singleheapsegment.hprof > > Time Spent: 20m > Remaining Estimate: 0h > > I am trying to generate {{.hprof}} file according to the [Java Profile > 1.0.2|http://hg.openjdk.java.net/jdk6/jdk6/jdk/raw-file/tip/src/share/demo/jvmti/hprof/manual.html#mozTocId848088] > specification. I believe I am fully following the specification (which > allows multiple heap segments), but NetBeans Profiler library chokes up on my > file and yields following exception: > {code:java} > java.lang.IllegalArgumentException: Invalid dump tag 0 at position 1415 > at > org.netbeans.lib.profiler.heap.HprofHeap.readDumpTag(HprofHeap.java:1138) > at > org.netbeans.lib.profiler.heap.HprofHeap.fillHeapTagBounds(HprofHeap.java:1215) > at org.netbeans.lib.profiler.heap.HprofHeap.<init>(HprofHeap.java:140) > at > org.netbeans.lib.profiler.heap.HeapFactory.createHeap(HeapFactory.java:80) > at > org.netbeans.lib.profiler.heap.HeapFactory.createHeap(HeapFactory.java:49) > {code} > I am able to generate the file with a single heap segment (see > [^singleheapsegment.hprof]) as well as multiple heap segments (see > [^multiheapsegment.hprof]). The first one can be opened by NetBeans 12.x, the > latter cannot. > > In my usecase I'd like to generate the file incrementally while my > application is running. As such it is essential to flush the heap segments > multiple times, otherwise I may run out of memory. It would be fantastic if > the NetBeans heap profiler library could be enhanced to work with > multiheapsegment files properly. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@netbeans.apache.org For additional commands, e-mail: commits-h...@netbeans.apache.org For further information about the NetBeans mailing lists, visit: https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists