randoop eclipse plugin generated pritnf statement is giving compilation error about randoop HOT 6 CLOSED

Can you show the exact compilation error?  printf can be called with just one 
parameter, so it would be helpful to have more details.

Hi Michael,

Please find error below. --- 

java.lang.Error: Unresolved compilation problem: 
    The method printf(String, Object[]) in the type PrintStream is not applicable for the arguments (String)

    at RandoopTest9.test1(RandoopTest9.java:10)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at junit.framework.TestCase.runTest(TestCase.java:168)
    at junit.framework.TestCase.runBare(TestCase.java:134)
    at junit.framework.TestResult$1.protect(TestResult.java:110)
    at junit.framework.TestResult.runProtected(TestResult.java:128)
    at junit.framework.TestResult.run(TestResult.java:113)
    at junit.framework.TestCase.run(TestCase.java:124)
    at junit.framework.TestSuite.runTest(TestSuite.java:232)
    at junit.framework.TestSuite.run(TestSuite.java:227)
    at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)



Regards 

Rajeev Ranjan

The error message seems to be coming from Eclipse:  if a method is
erroneous, then it compiles it anyway, so that the rest of the class can
continue, but it replaces the body of the problematic method with

  throw new Error("unresolved compilation problem");

The problems can be caused by mismatches in versions of code on your
classpath, or other issues.  I presume that you are running Randoop from
within Eclipse, or using Eclipse in some other way.

Sorry, I can't be of any more help than that.  Maybe someone else can.

yes , i am running it from eclipse , i will now try to run it and recheck 
classpaths and other configurations. hope this will works

To follow up on this defect, the 'printf()' method was added to the PrintStream 
class in J2SE 5.0 -- not before -- and Randoop currently generates tests that 
are only J2SE 5.0+ compatible.

Furthermore, looking at the tests the only place it appears that the 'printf()' 
method call appears to be used is to print out the name of the test being 
executed when the debug flag is set (see below), which is clearly not required.

 if (debug) System.out.print("%nRandoopTest0.test37");

Any chance this issue will be fixed any time soon so that those of us dependent 
upon early versions of Java can make use of the tool?

Obviously, a workaround is to simply refactor all 'printf' calls to 'println' 
calls which isn't a huge issue but a pain nonetheless.

I changed Randoop (in changeset d060d77daf59) so that it uses println + print, 
rather than printf.  This addresses the most recent comment/request.  It might 
also fix the initial bug report, though we never had enough information to 
reproduce & understand the problem.  Let us know if the problem persists.