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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.

java.lang.OutOfMemoryError: Java heap space	at java.util.Arrays.copyOf(Arrays.java:3332)	at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:137)	at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:121)	at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:514)	at java.lang.StringBuilder.append(StringBuilder.java:175)	at java.lang.StringBuilder.append(StringBuilder.java:76)	at com.google.common.io.CharStreams.copy(CharStreams.java:208)	at com.google.common.io.CharStreams.toStringBuilder(CharStreams.java:249)	at com.google.common.io.CharStreams.toString(CharStreams.java:223)	at com.cloudera.oryx.app.pmml.AppPMMLUtils.readPMMLFromUpdateKeyMessage(AppPMMLUtils.java:275)	at com.cloudera.oryx.app.speed.als.ALSSpeedModelManager.consumeKeyMessage(ALSSpeedModelManager.java:104)	at com.cloudera.oryx.app.speed.als.ALSSpeedModelManager.consumeKeyMessage(ALSSpeedModelManager.java:51)	at com.cloudera.oryx.api.speed.AbstractSpeedModelManager.consume(AbstractSpeedModelManager.java:48)	at com.cloudera.oryx.lambda.speed.SpeedLayer.lambda$start$1(SpeedLayer.java:126)