Java Heap Size Problem
Problem:
The error 'java.lang.OutOfMemoryError: Java heap space' is caused when the JVM (Java Virtual Machine) runs out of available memory during processing. This can be caused by:
a large number of files on your system an extremely large benchmark document an OVAL test that returns a large number of results a system that doesn't meet the minimum memory requirement of the NG Scoring tool (256MB)
The NG tool by default sets a maximum heap size of 256MB. The directions below describe how to increase this value on UNIX and Windows systems.
Solution:
For UNIX systems:
When running the tool include the heap space argument '-Xmx'. For example:
./ng.sh -Xmx512m
Where '-Xmx512m' sets the maximum heap size to 512MB of memory. Higher values may be used where additional memory is available.
For Windows systems:
1. Edit cli.bat located in the directory the tool was installed to. This directory is 'c:\Program Files\The Center for Internet Security\CIS NG Scoring Tool' by default on most systems.
2. On line 33 change the text -Xmx256m to a larger value. For example:
java -Xmx512m -Djava.library.path=./lib -classpath '%CLASSPATH%' org.cis.cli.Application %*
Where '-Xmx512m' sets the maximum heap size to 512MB of memory. Higher values may be used where additional memory is available.
3. Repeat step 2 on gui.bat also located in the directory the tool was installed to.
Additional Comments:
Example exception:
org.cis.ng.interpreter.BenchmarkProcessingException: unable to write the XCCDF report at org.cis.ng.interpreter.DefaultProcessingHandle.process(DefaultProcessingHandle.java:619) at org.cis.ng.interpreter.DefaultProcessingHandle.process(DefaultProcessingHandle.java:445) at org.cis.swing.BenchmarkSelectorPane$4.run(BenchmarkSelectorPane.java:232) at java.lang.Thread.run(Unknown Source)
Caused by: java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Java heap space at
The error 'java.lang.OutOfMemoryError: Java heap space' is caused when the JVM (Java Virtual Machine) runs out of available memory during processing. This can be caused by:
a large number of files on your system an extremely large benchmark document an OVAL test that returns a large number of results a system that doesn't meet the minimum memory requirement of the NG Scoring tool (256MB)
The NG tool by default sets a maximum heap size of 256MB. The directions below describe how to increase this value on UNIX and Windows systems.
Solution:
For UNIX systems:
When running the tool include the heap space argument '-Xmx'. For example:
./ng.sh -Xmx512m
Where '-Xmx512m' sets the maximum heap size to 512MB of memory. Higher values may be used where additional memory is available.
For Windows systems:
1. Edit cli.bat located in the directory the tool was installed to. This directory is 'c:\Program Files\The Center for Internet Security\CIS NG Scoring Tool' by default on most systems.
2. On line 33 change the text -Xmx256m to a larger value. For example:
java -Xmx512m -Djava.library.path=./lib -classpath '%CLASSPATH%' org.cis.cli.Application %*
Where '-Xmx512m' sets the maximum heap size to 512MB of memory. Higher values may be used where additional memory is available.
3. Repeat step 2 on gui.bat also located in the directory the tool was installed to.
Additional Comments:
Example exception:
org.cis.ng.interpreter.BenchmarkProcessingException: unable to write the XCCDF report at org.cis.ng.interpreter.DefaultProcessingHandle.process(DefaultProcessingHandle.java:619) at org.cis.ng.interpreter.DefaultProcessingHandle.process(DefaultProcessingHandle.java:445) at org.cis.swing.BenchmarkSelectorPane$4.run(BenchmarkSelectorPane.java:232) at java.lang.Thread.run(Unknown Source)
Caused by: java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Java heap space at