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com.abc.tools.Singleton.create()Lcom/abc/tools/LoanField;
java.lang.AbstractMethodError: com.abc.tools.Singleton.create()Lcom/abc/tools/LoanField;	at com.abc.tools.SingletonTest.loanFiledNotNull(SingletonTest.java:141)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:601)	at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:66)