Server cannot start if server path contains two consecutive spaces

./bin/standalone.sh 
JAVA_OPTS already set in environment; overriding default settings with values: -Xshare:auto -Xms256m -Xmx4G -XX:MaxPermSize=256m -XX:+UseConcMarkSweepGC -Dexo.directory.base=/home/thanhtt/java
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  JBoss Bootstrap Environment

  JBOSS_HOME: /home/example/java/jboss-eap/a  a

  JAVA: /home/example/java/jdk1.6/bin/java

  JAVA_OPTS:  -server -XX:+UseCompressedOops -XX:+TieredCompilation -Xshare:auto -Xms256m -Xmx4G -XX:MaxPermSize=256m -XX:+UseConcMarkSweepGC -Dexo.directory.base=/home/example/java

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Unable to access jarfile /home/example/java/jboss-eap/a a/jboss-modules.jar