Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-6665223

Static import of inherited protected method causes compiler exception

    Details

    • Subcomponent:
    • Introduced In Version:
    • Resolved In Build:
      b29
    • CPU:
      x86
    • OS:
      linux
    • Verification:
      Not verified

      Backports

        Description

        FULL PRODUCT VERSION :
        1.6.0_10-ea (under Linux)
        1.6.0_03-p3 (under Mac OS X)

        ADDITIONAL OS VERSION INFORMATION :
        I hit this bug on the SoyLatte port of JDK 6 to Mac OS, but the maintainer of that package reproduced it under Linux too.

        A DESCRIPTION OF THE PROBLEM :
        Compiling the given file which contains a particular static import causes a compiler exception.

        STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
        Compile the given files

        EXPECTED VERSUS ACTUAL BEHAVIOR :
        EXPECTED -
        Should compile it
        ACTUAL -
        Causes a compiler exception

        ERROR MESSAGES/STACK TRACES THAT OCCUR :
        Information:An exception has occurred in the compiler (1.6.0_03-p3). Please file a bug at the Java Developer Connection (http://java.sun.com/webapps/bugreport) after checking the Bug Parade for duplicates. Include your program and the following diagnostic in your report. Thank you.
        Information:java.lang.NullPointerException
        Information: at com.sun.tools.javac.code.Symbol.packge(Symbol.java:274)
        Information: at com.sun.tools.javac.code.Symbol.isInheritedIn(Symbol.java:344)
        Information: at com.sun.tools.javac.comp.Resolve.selectBest(Resolve.java:539)
        Information: at com.sun.tools.javac.comp.Resolve.findFun(Resolve.java:808)
        Information: at com.sun.tools.javac.comp.Resolve.resolveMethod(Resolve.java:1179)
        Information: at com.sun.tools.javac.comp.Attr.visitIdent(Attr.java:1706)
        Information: at com.sun.tools.javac.tree.JCTree$JCIdent.accept(JCTree.java:1547)
        Information: at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:360)
        Information: at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:377)
        Information: at com.sun.tools.javac.comp.Attr.visitApply(Attr.java:1241)
        Information: at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1210)
        Information: at com.sun.tools.javac.comp.Attr.attribArgs(Attr.java:421)
        Information: at com.sun.tools.javac.comp.Attr.visitApply(Attr.java:1233)
        Information: at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:384)
        Information: at com.sun.tools.javac.comp.Attr.visitExec(Attr.java:1017)
        Information: at com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1074)
        Information: at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:397)
        Information: at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:413)
        Information: at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:715)
        Information: at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:739)
        Information: at com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:634)
        Information: at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:639)
        Information: at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:2688)
        Information: at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:2619)
        Information: at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:2555)
        Information: at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1036)
        Information: at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:765)
        Information: at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:730)
        Information: at com.sun.tools.javac.main.Main.compile(Main.java:353)
        Information: at com.sun.tools.javac.main.Main.compile(Main.java:279)
        Information: at com.sun.tools.javac.main.Main.compile(Main.java:270)
        Information: at com.sun.tools.javac.Main.compile(Main.java:69)
        Information: at com.sun.tools.javac.Main.main(Main.java:54)
        Information: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        Information: at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        Information: at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        Information: at java.lang.reflect.Method.invoke(Method.java:597)
        Information: at com.intellij.rt.compiler.JavacRunner.main(JavacRunner.java:53)
        Information:Compilation completed with 1 error and 0 warnings
        Information:1 error
        Information:0 warnings
        Error:Compiler internal error. Process terminated with exit code 4

        REPRODUCIBILITY :
        This bug can be reproduced always.

        ---------- BEGIN SOURCE ----------
        pkg/ClassThatWontCompile.java
        ==========================
        package pkg;

        import static pkg.BasicallyEmptyClass.sayHello;

        public class ClassThatWontCompile {
            public void tryToPrint() {
                System.out.println(sayHello("hello"));
            }
        }
        ==========================
        pkg/BasicallyEmptyClass.java
        ==========================
        package pkg;

        public final class BasicallyEmptyClass extends AbstractClassWithStatic {}

        abstract class AbstractClassWithStatic {

        protected static String sayHello(Object objectToIgnore){
                return "hello";
            }

        }
        ---------- END SOURCE ----------

        CUSTOMER SUBMITTED WORKAROUND :
        Replace the static import with a fully qualified reference to the static method.

        Release Regression From : 5.0u12
        The above release value was the last known release where this
        bug was not reproducible. Since then there has been a regression.

        Release Regression From : 5.0u12
        The above release value was the last known release where this
        bug was not reproducible. Since then there has been a regression.

          Attachments

            Issue Links

              Activity

                People

                • Assignee:
                  mcimadamore Maurizio Cimadamore
                  Reporter:
                  ndcosta Nelson Dcosta
                • Votes:
                  0 Vote for this issue
                  Watchers:
                  0 Start watching this issue

                  Dates

                  • Created:
                    Updated:
                    Resolved:
                    Imported:
                    Indexed: