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https://issues.apache.org/jira/browse/OAK-9612?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Angela Schreiber reassigned OAK-9612:
-------------------------------------
Assignee: Joerg Hoh
> write to a readonly builder throws a java.lang.UnsupportedOperationException
> ----------------------------------------------------------------------------
>
> Key: OAK-9612
> URL: https://issues.apache.org/jira/browse/OAK-9612
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: composite, core
> Affects Versions: 1.40.0
> Reporter: Joerg Hoh
> Assignee: Joerg Hoh
> Priority: Major
> Fix For: 1.44.0
>
> Attachments: OAK-9612.patch
>
>
> I have a setup with a composite nodestore, where a write operation is
> attempted on the read-only part of it. It throws an
> UnsupportedOperationException and the stacktrace is like this:
> {noformat}
> java.lang.UnsupportedOperationException: This builder is read-only.
> at
> org.apache.jackrabbit.oak.spi.state.ReadOnlyBuilder.unsupported(ReadOnlyBuilder.java:44)
> at
> org.apache.jackrabbit.oak.spi.state.ReadOnlyBuilder.setChildNode(ReadOnlyBuilder.java:200)
> at
> org.apache.jackrabbit.oak.core.SecureNodeBuilder.setChildNode(SecureNodeBuilder.java:314)
> at
> org.apache.jackrabbit.oak.plugins.tree.impl.AbstractMutableTree.addChild(AbstractMutableTree.java:75)
> at
> org.apache.jackrabbit.oak.core.MutableTree.addChild(MutableTree.java:199)
> at
> org.apache.jackrabbit.oak.plugins.tree.TreeUtil.addChild(TreeUtil.java:247)
> at
> org.apache.jackrabbit.oak.jcr.delegate.NodeDelegate.addChild(NodeDelegate.java:690)
> at
> org.apache.jackrabbit.oak.jcr.session.NodeImpl$5.perform(NodeImpl.java:314)
> at
> org.apache.jackrabbit.oak.jcr.session.NodeImpl$5.perform(NodeImpl.java:280)
> at
> org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.perform(SessionDelegate.java:209)
> at
> org.apache.jackrabbit.oak.jcr.session.ItemImpl.perform(ItemImpl.java:112)
> at
> org.apache.jackrabbit.oak.jcr.session.NodeImpl.addNode(NodeImpl.java:280)
> at
> org.apache.jackrabbit.oak.jcr.session.NodeImpl.addNode(NodeImpl.java:265)
> at
> org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProvider.create(JcrResourceProvider.java:448)
> {noformat}
> Right now this exception is not handled at any layer in Oak, Sling and our
> code, but it rather bubbles up to the request which has initiated it. Any
> exception handling which is present to handle failed writes (for whatever
> reason) is not triggered, because it just catches the exceptions which are
> thrown according to the API spec of addNode().
> In this scenario this exception is expected (from the setup point of view,
> not necessarily from the code itself), and I would appreciate if this
> UnsupportedOperationException could be converted by Oak into a
> ConstraintViolationException, which we handle already (including the message
> that this operation is not supported on a ReadOnlyBuilder).
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