package a;

import junit.framework.TestCase;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IProjectDescription;
import org.eclipse.core.resources.ResourcesPlugin;

import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.dom.AST;
import org.eclipse.jdt.core.dom.ASTParser;
import org.eclipse.jdt.core.dom.IAnnotationBinding;
import org.eclipse.jdt.core.dom.IBinding;
import org.eclipse.jdt.core.dom.ITypeBinding;

import org.eclipse.jdt.internal.junit.buildpath.JUnitContainerInitializer;

import org.eclipse.jdt.launching.JavaRuntime;

public class SnippedBug156352 extends TestCase {
	
	public void testNPE() throws Exception {
		IProject project= ResourcesPlugin.getWorkspace().getRoot().getProject("Test");
		project.create(null);
		try {
			project.open(null);
			
			IProjectDescription description = project.getDescription();
			description.setNatureIds(new String[] { JavaCore.NATURE_ID } );
			project.setDescription(description, null);
			
			IJavaProject javaProject= JavaCore.create(project);
			
			IClasspathEntry[] cpentry= new IClasspathEntry[] {
					JavaCore.newSourceEntry(javaProject.getPath()),
					JavaRuntime.getDefaultJREContainerEntry(),
					JavaCore.newContainerEntry(JUnitContainerInitializer.JUNIT4_PATH)
			};
			javaProject.setRawClasspath(cpentry, javaProject.getPath(), null);
			
			IPackageFragmentRoot root= javaProject.getPackageFragmentRoot(project);
			
			IPackageFragment p= root.createPackageFragment("p", true, null);
			StringBuffer buf= new StringBuffer();
			buf.append("package p;\n");
			buf.append("\n");
			buf.append("import org.junit.Test;\n");
			buf.append("\n");
			buf.append("public class Test1 {\n");
			buf.append("        @Test public void testFoo() {\n");
			buf.append("        }\n");
			buf.append("}\n");
			p.createCompilationUnit("Test1.java", buf.toString(), false, null);
			
			buf= new StringBuffer();
			buf.append("package p;\n");
			buf.append("\n");
			buf.append("import org.junit.runner.RunWith;\n");
			buf.append("import org.junit.runners.Suite;\n");
			buf.append("import org.junit.runners.Suite.SuiteClasses;\n");
			buf.append("\n");
			buf.append("@RunWith(Suite.class)\n");
			buf.append("@SuiteClasses(Test1.class)\n");
			buf.append("public class Test2 {\n");
			buf.append("    \n");
			buf.append("}\n");
			p.createCompilationUnit("Test2.java", buf.toString(), false, null);
					
			buf= new StringBuffer();
			buf.append("package p;\n");
			buf.append("\n");
			buf.append("public class Test3 extends Test2 {\n");
			buf.append("    \n");
			buf.append("}\n");
			IType type= p.createCompilationUnit("Test3.java", buf.toString(), false, null).getType("Test3");
			
			ASTParser parser= ASTParser.newParser(AST.JLS3);
			parser.setProject(type.getJavaProject());
			IBinding[] bindings= parser.createBindings(new IJavaElement[] { type }, null);
			if (bindings.length == 1 && bindings[0] instanceof ITypeBinding) {
				ITypeBinding binding= (ITypeBinding) bindings[0];
				while (binding != null) {
					IAnnotationBinding[] annotations= binding.getAnnotations(); // NPE here on 'Test1'
					binding= binding.getSuperclass();
				}
			}
		} finally {
			project.delete(true, null);
		}
	}

}