### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core.tests.model
Index: src/org/eclipse/jdt/core/tests/model/JavaSearchBugsTests.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/JavaSearchBugsTests.java,v
retrieving revision 1.164
diff -u -r1.164 JavaSearchBugsTests.java
--- src/org/eclipse/jdt/core/tests/model/JavaSearchBugsTests.java	18 Feb 2009 12:08:58 -0000	1.164
+++ src/org/eclipse/jdt/core/tests/model/JavaSearchBugsTests.java	2 Mar 2009 16:59:31 -0000
@@ -10425,6 +10425,79 @@
 	}
 }
 
+/**
+ * @bug 261722: [search] NPE after removing a project
+ * @test Ensure that no NPE occurs when project is deleted before the end of the search request
+ * @see "https://bugs.eclipse.org/bugs/show_bug.cgi?id=261722"
+ */
+public void testBug261722() throws Exception {
+	IPath projectPath = null;
+	IJavaProject javaProject = null;
+	try {
+		// Create jar and project
+		final int MAX = 10;
+		final String[] pathsAndContents = new String[(1+MAX)*2];
+		pathsAndContents[0] = "p261722/X.java";
+		pathsAndContents[1] = "package p261722;\n" +
+        	"public class X {}";
+		for (int i=1; i<=MAX; i++) {
+			String className = (i<10) ? "X0"+i : "X"+i;
+			pathsAndContents[i*2] = "p261722/"+className+".java";
+			pathsAndContents[i*2+1] = "package p261722;\n" +
+	        	"public class "+className+" extends X {}";
+        }
+		javaProject = createJavaProject("P");
+		projectPath = javaProject.getProject().getLocation();
+		addLibrary(javaProject, "lib261722.jar", "lib261722.zip", pathsAndContents, "1.4");
+		waitUntilIndexesReady();
+		
+		// Search in separated thread
+		class TestSearchRequestor extends SearchRequestor {
+			int count = 0;
+			public void acceptSearchMatch(SearchMatch searchMatch) throws CoreException {
+			    try {
+	                Thread.sleep(100);
+                } catch (InterruptedException e) {
+	                // skip
+                }
+                this.count++;
+		    }
+		}
+		final TestSearchRequestor requestor = new TestSearchRequestor();
+		final SearchPattern pattern = SearchPattern.createPattern("X*", IJavaSearchConstants.DECLARATIONS, IJavaSearchConstants.TYPE, SearchPattern.R_PATTERN_MATCH);
+		final IJavaSearchScope scope = SearchEngine.createJavaSearchScope(new IJavaElement[] { javaProject });
+		Runnable search = new Runnable() {
+			public void run() {
+				try {
+					new SearchEngine().search(pattern, new SearchParticipant[] { SearchEngine.getDefaultSearchParticipant() }, scope, requestor, null);
+				} catch (CoreException e) {
+					throw new RuntimeException(e);
+				}
+		    }
+		};
+		Thread thread = new Thread(search);
+		thread.start();
+
+		// Delete project in current thread
+		while (requestor.count < (MAX/3)) {
+			Thread.sleep(10);
+		}
+		deleteProject(javaProject);
+		
+		// Wait until search is finished
+		while (thread.isAlive()) {
+			Thread.sleep(100);
+		}
+		
+		// Verify search results
+		assertEquals("Unexpected matches count", MAX+1, requestor.count);
+	} finally {
+		if (projectPath != null) {
+			deleteFile("/P/lib261722.jar");
+			deleteFile("/P/lib261722.zip");
+		}
+	}
+}
 
 /**
  * @bug 265065: [search] java.lang.ClassCastException while running "Refactor...Extract Class"
#P org.eclipse.jdt.core
Index: search/org/eclipse/jdt/internal/core/search/matching/PossibleMatch.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/search/org/eclipse/jdt/internal/core/search/matching/PossibleMatch.java,v
retrieving revision 1.30
diff -u -r1.30 PossibleMatch.java
--- search/org/eclipse/jdt/internal/core/search/matching/PossibleMatch.java	27 Jun 2008 16:03:59 -0000	1.30
+++ search/org/eclipse/jdt/internal/core/search/matching/PossibleMatch.java	2 Mar 2009 16:59:32 -0000
@@ -68,8 +68,10 @@
 			if (fileName == NO_SOURCE_FILE_NAME) return CharOperation.NO_CHAR;
 
 			SourceMapper sourceMapper = this.openable.getSourceMapper();
-			IType type = ((ClassFile) this.openable).getType();
-			contents = sourceMapper.findSource(type, fileName);
+			if (sourceMapper != null) {
+				IType type = ((ClassFile) this.openable).getType();
+				contents = sourceMapper.findSource(type, fileName);
+			}
 		} else {
 			contents = this.document.getCharContents();
 		}