Ra agent is up and running but we get no reaction of RA FTP job when opening the FTP or RA tab.

Document ID : KB000089506
Last Modified Date : 14/04/2018
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Ra agent is up and running but we get no reaction of RA FTP job when opening the FTP or RA tab.


  • When clicking on the RA or FTP tab of an RAFTP job we get no reaction and the Userinterface keeps on searching.
  • RA FTP Agent is up and running


Data needed for analysis:

  • XML = 3 Trace of the Userinterface from the time the error occurred (default location Userinterface/temp folder)

The following error message can be found in the Userinterface trace file:

U4002598 Error = ' in main [AWT-EventQueue-0]  : DefaultUncaughtExceptionHandler' UC4TEST_1000
                       java.lang.OutOfMemoryError: Java heap space
                       at java.util.Arrays.copyOfRange(Arrays.java:3209)
                       at java.lang.String.<init>(String.java:215)
                       at java.lang.StringBuffer.toString(StringBuffer.java:585)
                       at java.io.BufferedReader.readLine(BufferedReader.java:334)
                       at java.io.BufferedReader.readLine(BufferedReader.java:362)
                       at com.uc4.be.xml.XmlUtil.xmlToString(XmlUtil.java:141)
                       at com.uc4.ucdf.E.D.A(Unknown Source)
                       at com.uc4.ucdf.E.D.A(Unknown Source)
                       at com.uc4.ucdf.E.E.<init>(Unknown Source)
                       at com.uc4.ucdf.M$1.<init>(Unknown Source)
                       at com.uc4.ucdf.M.z(Unknown Source)
                       at com.uc4.ucdf.M.y(Unknown Source)
                       at com.uc4.ucdf.M.A(Unknown Source)
                       at com.uc4.ucdf.M$3.A(Unknown Source)
                       at com.uc4.ucdf.bB.execute(Unknown Source)
                       at com.uc4.C.I.R(Unknown Source)
                       at com.uc4.C.I.J(Unknown Source)
                       at com.uc4.C.I.B(Unknown Source)
                       at com.uc4.ucdf.w.executeEventCommandBlock(Unknown Source)
                       at com.uc4.ucdf.w.executeEventCommandBlock(Unknown Source)
                       at com.uc4.ucdf.w.executeEventCommandBlock(Unknown Source)
                       at com.uc4.ucdf.w.onActivate(Unknown Source)
                       at com.uc4.ucdf.w.setActive(Unknown Source)
                       at com.uc4.ucdf.CA$_A.stateChanged(Unknown Source)
                       at javax.swing.JTabbedPane.fireStateChanged(JTabbedPane.java:400)
                       at javax.swing.JTabbedPane$ModelListener.stateChanged(JTabbedPane.java:253)
                       at javax.swing.DefaultSingleSelectionModel.fireStateChanged(DefaultSingleSelectionModel.java:116)
                       at javax.swing.DefaultSingleSelectionModel.setSelectedIndex(DefaultSingleSelectionModel.java:50)
                       at javax.swing.JTabbedPane.setSelectedIndexImpl(JTabbedPane.java:599)
                       at javax.swing.JTabbedPane.setSelectedIndex(JTabbedPane.java:574)
                       at javax.swing.plaf.basic.BasicTabbedPaneUI$Handler.mousePressed(BasicTabbedPaneUI.java:3628)
                       at javax.swing.plaf.synth.SynthTabbedPaneUI$1.mousePressed(SynthTabbedPaneUI.java:279)


  • The Userinterface was not started with enough heap space for your environment.


  • The heap space that the Userinterface is started with needs to be adjusted to the needs of your environment.
  • Open the UCDJ.ini file (default location Userinterface/temp)

In the UCDJ.ini you can find the following line:


;command how to start the client
cmd="javaw" -Xmx256m -Dsun.locale.formatasdefault=true com.uc4.ucdf.UCDialogFactory -U%User% 

  • Adjust these settings to the needs of your environment, please try to start the Userinterface with the settings -Xmx512m, -Xmx1024m or -Xmx2048m  
  • To do so simply adjust the start command in the UCDJ.ini
  • Save the settings to the UCDJ.ini and restart the Userinterface