[Bug libgcj/16675] New: Null parameter values require explicit cast

["richardl at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>]

[richardl@conundrum src]$ rpm -qa | grep gcj
libgcj-3.4.0-7
libgcj-devel-3.4.0-7

The following program fails to compile with gcj:

public class Test {
    public Test(Object obj) { }

    public void someTestMethod() {
        new Test(null) { };
    }

    public void someTestMethod2() {
        new Test((Object) null) { };
    }

}

[richardl@conundrum tmp]$ gcj -C Test.java
Test.java: In class `Test':
Test.java: In method `Test.someTestMethod()':
Test.java:4: error: No constructor matching `(Test,void)' found in class `Test'.
       public void someTestMethod() {
                                     ^
Test.java: In class `Test$1':
Test.java: In constructor `(Test,void)':
Test.java:5: error: Can't find constructor `Test$1(V)' in type `Test$1'.
           new Test(null) { };
               ^
2 errors

This compiles fine with javac. The workaround is to cast the null, as shown in
the second test method.

-- 
           Summary: Null parameter values require explicit cast
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libgcj
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: richardl at redhat dot com
                CC: gcc-bugs at gcc dot gnu dot org,java-prs at gcc dot gnu
                    dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16675