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OutOfMemoryError #177

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OutOfMemoryError#177

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@scauwe
scauwe
opened on Oct 28, 2026

Hi,

Now that the duplicate library object is solved, I clicked around, but encountered an OutOfMemoryError.

PS C:\Users\me> docker logs idmweb --tail 200
WARNING: no engine jars at /opt/idm/lib; validation's compile check and the simulator need them (mount the customer's lib/); vault access does not.
WARNING: /etc/idmweb/hosted.properties is readable by other users — run: chmod 600 '/etc/idmweb/hosted.properties'
DirXMLDevWeb 0.82.0 hosted: http://localhost:8080 (bound 0.0.0.0:8080), identity token, 1 agent(s), projects DV_DR_13, data /var/lib/idmweb
Exception in thread "tree-watcher" Exception in thread "idmweb-http" java.lang.OutOfMemoryError: Java heap space
        at java.xml/com.sun.org.apache.xerces.internal.dom.DeferredDocumentImpl.createChunk(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.dom.DeferredDocumentImpl.ensureCapacity(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.dom.DeferredDocumentImpl.createNode(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.dom.DeferredDocumentImpl.createDeferredAttribute(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.dom.DeferredDocumentImpl.setDeferredAttribute(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractDOMParser.startElement(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
        at com.pointblue.dirxml.dev.xml.CanonicalXml.parse(CanonicalXml.java:101)
        at com.pointblue.dirxml.dev.ascode.AsCodeReader.xml(AsCodeReader.java:430)
        at com.pointblue.dirxml.dev.ascode.AsCodeReader.readDriver(AsCodeReader.java:95)
        at com.pointblue.dirxml.dev.ascode.AsCodeReader.read(AsCodeReader.java:76)
        at com.pointblue.dirxml.web.VaultService.schemaClass(VaultService.java:476)
        at com.pointblue.dirxml.web.Api.route(Api.java:612)
        at com.pointblue.dirxml.web.Api.handle(Api.java:391)
        at jdk.httpserver/com.sun.net.httpserver.Filter$Chain.doFilter(Unknown Source)
        at jdk.httpserver/sun.net.httpserver.AuthFilter.doFilter(Unknown Source)
        at jdk.httpserver/com.sun.net.httpserver.Filter$Chain.doFilter(Unknown Source)
        at jdk.httpserver/sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(Unknown Source)
        at jdk.httpserver/com.sun.net.httpserver.Filter$Chain.doFilter(Unknown Source)
        at jdk.httpserver/sun.net.httpserver.ServerImpl$Exchange.run(Unknown Source)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.base/java.lang.Thread.runWith(Unknown Source)
java.lang.OutOfMemoryError: Java heap space: failed reallocation of scalar replaced objects
Exception in thread "idmweb-http" java.lang.OutOfMemoryError: Java heap space
Exception in thread "idmweb-http" java.lang.OutOfMemoryError: Java heap space
        at java.base/java.lang.StringUTF16.compress(Unknown Source)
        at java.base/java.lang.String.<init>(Unknown Source)
        at java.base/java.lang.String.<init>(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.xni.XMLString.toString(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractDOMParser.characters(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
        at java.xml/com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
        at com.pointblue.dirxml.dev.xml.CanonicalXml.parse(CanonicalXml.java:101)
        at com.pointblue.dirxml.dev.ascode.AsCodeReader.xml(AsCodeReader.java:430)
        at com.pointblue.dirxml.dev.ascode.AsCodeReader.readArtifact(AsCodeReader.java:204)
        at com.pointblue.dirxml.dev.ascode.AsCodeReader.readDriver(AsCodeReader.java:123)
        at com.pointblue.dirxml.dev.ascode.AsCodeReader.read(AsCodeReader.java:76)
        at com.pointblue.dirxml.web.VaultService.appSchema(VaultService.java:528)
        at com.pointblue.dirxml.web.Api.route(Api.java:614)
        at com.pointblue.dirxml.web.Api.handle(Api.java:391)
        at jdk.httpserver/com.sun.net.httpserver.Filter$Chain.doFilter(Unknown Source)
        at jdk.httpserver/sun.net.httpserver.AuthFilter.doFilter(Unknown Source)
        at jdk.httpserver/com.sun.net.httpserver.Filter$Chain.doFilter(Unknown Source)
        at jdk.httpserver/sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(Unknown Source)
        at jdk.httpserver/com.sun.net.httpserver.Filter$Chain.doFilter(Unknown Source)
        at jdk.httpserver/sun.net.httpserver.ServerImpl$Exchange.run(Unknown Source)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.base/java.lang.Thread.runWith(Unknown Source)
        at java.base/java.lang.Thread.run(Unknown Source)

I searched around to see if I could set the jvm's memory, but I could not find anything to set jvm parameters.

Activity

  1. scauwe commented on Oct 28, 2026

    @scauwe
    scauwe
    on Oct 28, 2026
    Author

    Please ignore. I started docker run with -m 8g. Seemed that the default memory setting was 2g on my system.

  2. scauwe
    closed this as completedon Oct 28, 2026

  3. jcombs-pointblue commented on Oct 29, 2026

    @jcombs-pointblue
    jcombs-pointblue
    on Oct 29, 2026
    Contributor

    Thanks, glad -m 8g sorted it. Two things for anyone who lands here:

    • The image passes IDM_JAVA_OPTS to Java, so -e IDM_JAVA_OPTS="-Xmx4g" sets the heap.
    • Your trace also shows a waste on our side: the vault-schema pages read the whole project from disk on every request, several at once. We'll fix that and document the memory setting.
  4. jcombs-pointblue
    added 3 commits that reference this issue on Oct 29, 2026

    Merge pull request #178 from PointBlueTechnology/memory-and-schema-reads

    238792b

    Share the tree between reads; give the server more of the container's…

    8990476

    Merge pull request #178 from PointBlueTechnology/memory-and-schema-reads

    9c42c1e
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