title: After adding log4j property in ignite default config file, service not able to start
body: <p>I'm trying to enable Log4j logger by using the gridLogger property in the config file like below:</p>
  
  <pre><code>&lt;bean id="grid.cfg" class="org.apache.ignite.configuration.IgniteConfiguration"/&gt;
  &lt;property name="gridLogger"&gt;
  &lt;bean class="org.apache.ignite.logger.log4j.Log4JLogger"&gt;
  &lt;constructor-arg type="java.lang.String" value="config/ignite-log4j.xml"/&gt;
  &lt;/bean&gt;
  &lt;/property&gt;
  </code></pre>
  
  <p>But when starting the ignite.sh it is giving below error as it is not able to read the property parameter. </p>
  
  <pre><code>[root@ignite1 ~]# /usr/apache-ignite-2.7.6-bin/bin/ignite.sh
  WARNING: An illegal reflective access operation has occurred
  WARNING: Illegal reflective access by org.apache.ignite.internal.util.GridUnsafe$2 (file:/usr/apache-ignite-2.7.6-bin/libs/ignite-core-2.7.6.jar) to field java.nio.Buffer.address
  WARNING: Please consider reporting this to the maintainers of org.apache.ignite.internal.util.GridUnsafe$2
  WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
  WARNING: All illegal access operations will be denied in a future release
  class org.apache.ignite.IgniteException: Failed to instantiate Spring XML application context [springUrl=file:/usr/apache-ignite-2.7.6-bin/config/default-config.xml, err=Line 29 in XML document from URL [file:/usr/apache-ignite-2.7.6-bin/config/default-config.xml] is invalid; nested exception is org.xml.sax.SAXParseException; lineNumber: 29; columnNumber: 33; cvc-complex-type.2.4.a: Invalid content was found starting with element '{"http://www.springframework.org/schema/beans":property}'. One of '{"http://www.springframework.org/schema/beans":import, "http://www.springframework.org/schema/beans":alias, "http://www.springframework.org/schema/beans":bean, WC[##other:"http://www.springframework.org/schema/beans"], "http://www.springframework.org/schema/beans":beans}' is expected.]
          at org.apache.ignite.internal.util.IgniteUtils.convertException(IgniteUtils.java:1029)
          at org.apache.ignite.Ignition.start(Ignition.java:351)
          at org.apache.ignite.startup.cmdline.CommandLineStartup.main(CommandLineStartup.java:301)
  Caused by: class org.apache.ignite.IgniteCheckedException: Failed to instantiate Spring XML application context [springUrl=file:/usr/apache-ignite-2.7.6-bin/config/default-config.xml, err=Line 29 in XML document from URL [file:/usr/apache-ignite-2.7.6-bin/config/default-config.xml] is invalid; nested exception is org.xml.sax.SAXParseException; lineNumber: 29; columnNumber: 33; cvc-complex-type.2.4.a: Invalid content was found starting with element '{"http://www.springframework.org/schema/beans":property}'. One of '{"http://www.springframework.org/schema/beans":import, "http://www.springframework.org/schema/beans":alias, "http://www.springframework.org/schema/beans":bean, WC[##other:"http://www.springframework.org/schema/beans"], "http://www.springframework.org/schema/beans":beans}' is expected.]
          at org.apache.ignite.internal.util.spring.IgniteSpringHelperImpl.applicationContext(IgniteSpringHelperImpl.java:392)
          at org.apache.ignite.internal.util.spring.IgniteSpringHelperImpl.loadConfigurations(IgniteSpringHelperImpl.java:104)
          at org.apache.ignite.internal.util.spring.IgniteSpringHelperImpl.loadConfigurations(IgniteSpringHelperImpl.java:98)
          at org.apache.ignite.internal.IgnitionEx.loadConfigurations(IgnitionEx.java:751)
          at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:952)
          at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:861)
          at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:731)
          at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:700)
          at org.apache.ignite.Ignition.start(Ignition.java:348)
          ... 1 more
  Caused by: org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 29 in XML document from URL [file:/usr/apache-ignite-2.7.6-bin/config/default-config.xml] is invalid; nested exception is org.xml.sax.SAXParseException; lineNumber: 29; columnNumber: 33; cvc-complex-type.2.4.a: Invalid content was found starting with element '{"http://www.springframework.org/schema/beans":property}'. One of '{"http://www.springframework.org/schema/beans":import, "http://www.springframework.org/schema/beans":alias, "http://www.springframework.org/schema/beans":bean, WC[##other:"http://www.springframework.org/schema/beans"], "http://www.springframework.org/schema/beans":beans}' is expected.
          at 
  </code></pre>