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  1. ,
    via oracle.com by Unknown author

    An easy way to solve OutOfMemoryError in java is to increase the maximum heap size by using JVM options -Xmx512M, this will immediately solve your OutOfMemoryError.

  2. ,
    via Stack Overflow by Eugene Yokota

    In Eclipse : go to Run --> Run Configurations --> then select the project under maven build --> then select the tab "JRE" --> then enter -Xmx1024m.

    This should increase the memory heap for all the builds/projects. The above memory size is 1 GB.

Solutions on the web

via tomcat-users by ext-narsi.reddy@nokia.com, 1 year ago
via tomcat-users by ext-narsi.reddy@nokia.com, 2 years ago
via Stack Overflow by Maximin
, 2 years ago
via Google Groups by Janar, 2 years ago
java.lang.OutOfMemoryError: Java heap space	at java.util.Arrays.copyOf(Arrays.java:2786)	at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:94)	at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202)	at sun.nio.cs.StreamEncoder.implWrite(StreamEncoder.java:263)	at sun.nio.cs.StreamEncoder.write(StreamEncoder.java:106)	at sun.nio.cs.StreamEncoder.write(StreamEncoder.java:116)	at java.io.OutputStreamWriter.write(OutputStreamWriter.java:203)	at java.io.Writer.write(Writer.java:140)	at org.codehaus.plexus.util.xml.pull.MXSerializer.writeAttributeValue(MXSerializer.java:880)	at org.codehaus.plexus.util.xml.pull.MXSerializer.attribute(MXSerializer.java:663)	at org.codehaus.plexus.util.xml.SerializerXMLWriter.addAttribute(SerializerXMLWriter.java:67)	at org.codehaus.plexus.util.xml.Xpp3DomWriter.write(Xpp3DomWriter.java:50)	at org.codehaus.plexus.util.xml.Xpp3DomWriter.write(Xpp3DomWriter.java:55)	at org.codehaus.plexus.util.xml.Xpp3DomWriter.write(Xpp3DomWriter.java:55)	at org.codehaus.plexus.util.xml.Xpp3DomWriter.write(Xpp3DomWriter.java:55)	at org.codehaus.plexus.util.xml.Xpp3DomWriter.write(Xpp3DomWriter.java:55)	at org.codehaus.plexus.util.xml.Xpp3DomWriter.write(Xpp3DomWriter.java:39)	at org.codehaus.plexus.util.xml.Xpp3Dom.writeToSerializer(Xpp3Dom.java:291)	at org.sonatype.nexus.plugins.p2.repository.metadata.AbstractP2MetadataSource.createMetadataItem(AbstractP2MetadataSource.java:105)	at org.sonatype.nexus.plugins.p2.repository.metadata.AbstractP2MetadataSource.createMetadataItem(AbstractP2MetadataSource.java:80)	at org.sonatype.nexus.plugins.p2.repository.metadata.AbstractP2MetadataSource.doRetrieveContentItem(AbstractP2MetadataSource.java:492)	at org.sonatype.nexus.plugins.p2.repository.metadata.AbstractP2MetadataSource.doRetrieveItem(AbstractP2MetadataSource.java:214)	at org.sonatype.nexus.plugins.p2.repository.proxy.P2ProxyRepositoryImpl.doRetrieveItem(P2ProxyRepositoryImpl.java:444)	at org.sonatype.nexus.proxy.repository.AbstractRepository.retrieveItem(AbstractRepository.java:769)	at org.sonatype.nexus.plugins.p2.repository.proxy.P2ProxyRepositoryImpl.retrieveItem(P2ProxyRepositoryImpl.java:417)	at org.sonatype.nexus.proxy.repository.AbstractRepository.retrieveItem(AbstractRepository.java:584)	at org.sonatype.nexus.proxy.router.DefaultRepositoryRouter.retrieveItem(DefaultRepositoryRouter.java:183)	at org.sonatype.nexus.rest.AbstractResourceStoreContentPlexusResource.get(AbstractResourceStoreContentPlexusResource.java:139)	at org.sonatype.plexus.rest.resource.RestletResource.represent(RestletResource.java:249)	at org.sonatype.nexus.rest.NexusRestletResource.represent(NexusRestletResource.java:44)	at org.restlet.resource.Resource.getRepresentation(Resource.java:302)	at org.restlet.resource.Resource.handleGet(Resource.java:464)