Petals BC REST

org.apache.http.ContentTooLongException: Content length is too long: 768909
    at org.apache.http.entity.mime.MultipartFormEntity.getContent(MultipartFormEntity.java:103)
    at org.apache.http.nio.entity.EntityAsyncContentProducer.produceContent(EntityAsyncContentProducer.java:65)
    at org.apache.http.nio.protocol.BasicAsyncRequestProducer.produceContent(BasicAsyncRequestProducer.java:125)
    at org.apache.http.impl.nio.client.MainClientExec.produceContent(MainClientExec.java:262)
    at org.apache.http.impl.nio.client.DefaultClientExchangeHandlerImpl.produceContent(DefaultClientExchangeHandlerImpl.java:140)
    at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.outputReady(HttpAsyncRequestExecutor.java:241)
    at org.apache.http.impl.nio.DefaultNHttpClientConnection.produceOutput(DefaultNHttpClientConnection.java:290)
    at org.apache.http.impl.nio.client.InternalIODispatch.onOutputReady(InternalIODispatch.java:86)
    at org.apache.http.impl.nio.client.InternalIODispatch.onOutputReady(InternalIODispatch.java:39)
    at org.apache.http.impl.nio.reactor.AbstractIODispatch.outputReady(AbstractIODispatch.java:145)
    at org.apache.http.impl.nio.reactor.BaseIOReactor.writable(BaseIOReactor.java:188)
    at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:341)
    at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:315)
    at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:276)
    at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:104)
    at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:588)
    at java.lang.Thread.run(Thread.java:748)