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java.lang.OutOfMemoryError: Java heap space at io.netty.buffer.PoolArena$HeapArena.newUnpooledChunk(PoolArena.java:607) at io.netty.buffer.PoolArena.allocateHuge(PoolArena.java:237) at io.netty.buffer.PoolArena.allocate(PoolArena.java:215) at io.netty.buffer.PoolArena.allocate(PoolArena.java:132)