Error creating bean with name 'dataConfig': Invocation of init method failed; nested exception is java.awt.HeadlessException

System.setProperty("java.awt.headless", "false");
//DatabaseManagerSwing前面加紅色這一行
DatabaseManagerSwing.main(new String[] { "--url", "jdbc:hsqldb:mem:testdb", "--noexit" });

完整錯誤訊息:
Caused by: java.awt.HeadlessException: null
        at java.desktop/java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:166) ~[na:na]
        at java.desktop/java.awt.Window.<init>(Window.java:553) ~[na:na]
        at java.desktop/java.awt.Frame.<init>(Frame.java:428) ~[na:na]
        at java.desktop/java.awt.Frame.<init>(Frame.java:393) ~[na:na]
        at java.desktop/javax.swing.JFrame.<init>(JFrame.java:180) ~[na:na]
        at org.hsqldb.util.DatabaseManagerSwing.<init>(Unknown Source) ~[hsqldb-2.6.1.jar:2.6.1]
        at org.hsqldb.util.DatabaseManagerSwing.main(Unknown Source) ~[hsqldb-2.6.1.jar:2.6.1]