fix https://bugs.eclipse.org/bugs/show_bug.cgi?id=375190

5 files changed, 68 insertions, 2 deletions

diff --git a/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/CGCategory.java b/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/CGCategory.java
index be39b8db5d..4c90ea0cde 100644
--- a/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/CGCategory.java
+++ b/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/CGCategory.java
@@ -44,19 +44,29 @@ public class CGCategory extends AbstractTreeElement  {
 		}
 	}
 
-
 	/*
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.TreeElement#getChildren()
 	 */
+	@Override
 	public LinkedList<? extends TreeElement> getChildren() {
 		return children;
 	}
+	
+	/*
+	 * (non-Javadoc)
+	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement#hasChildren()
+	 */
+	@Override
+	public boolean hasChildren() {
+		return !children.isEmpty();
+	}
 
 	/*
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.TreeElement#getName()
 	 */
+	@Override
 	public String getName() {
 		return category;
 	}
diff --git a/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/HistFile.java b/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/HistFile.java
index 59bf8bb6a2..678bab671e 100644
--- a/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/HistFile.java
+++ b/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/HistFile.java
@@ -65,11 +65,22 @@ public class HistFile extends AbstractTreeElement {
 		HistFunction hf = getChild(s);
 		hf.addCallGraphNode(node);
 	}
+	
+	
+	/*
+	 * (non-Javadoc)
+	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement#hasChildren()
+	 */
+	@Override
+	public boolean hasChildren() {
+		return !children.isEmpty();
+	}
 
 	/*
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.TreeElement#getChildren()
 	 */
+	@Override
 	public LinkedList<? extends TreeElement> getChildren() {
 		return this.children;
 	}
@@ -78,6 +89,7 @@ public class HistFile extends AbstractTreeElement {
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.TreeElement#getName()
 	 */
+	@Override
 	public String getName() {
 		Path f = new Path(sourcePath);
 		return f.lastSegment();
@@ -87,6 +99,7 @@ public class HistFile extends AbstractTreeElement {
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement#getSourceLine()
 	 */
+	@Override
 	public int getSourceLine() {
 		return 0;
 	}
@@ -95,6 +108,7 @@ public class HistFile extends AbstractTreeElement {
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement#getSourcePath()
 	 */
+	@Override
 	public String getSourcePath() {
 		return this.sourcePath;
 	}
@@ -104,6 +118,7 @@ public class HistFile extends AbstractTreeElement {
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement#getCalls()
 	 */
+	@Override
 	public int getCalls() {
 		return -1;
 	}
diff --git a/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/HistFunction.java b/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/HistFunction.java
index 7a690744db..d4dd0bca1c 100644
--- a/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/HistFunction.java
+++ b/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/HistFunction.java
@@ -84,11 +84,22 @@ public class HistFunction extends AbstractTreeElement {
 		}
 		this.calls = node.getCalls();
 	}
+	
+	
+	/*
+	 * (non-Javadoc)
+	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement#hasChildren()
+	 */
+	@Override
+	public boolean hasChildren() {
+		return !children.isEmpty();
+	}
 
 	/*
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.TreeElement#getChildren()
 	 */
+	@Override
 	public LinkedList<? extends TreeElement> getChildren() {
 		return this.children;
 	}
@@ -97,6 +108,7 @@ public class HistFunction extends AbstractTreeElement {
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement#getCalls()
 	 */
+	@Override
 	public int getCalls() {
 		return this.calls;
 	}
@@ -105,6 +117,7 @@ public class HistFunction extends AbstractTreeElement {
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.TreeElement#getName()
 	 */
+	@Override
 	public String getName() {
 		return STSymbolManager.sharedInstance.demangle(this.symbol, getProject());
 	}
@@ -127,6 +140,7 @@ public class HistFunction extends AbstractTreeElement {
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement#getSourceLine()
 	 */
+	@Override
 	public int getSourceLine() {
 		return STSymbolManager.sharedInstance.getLineNumber(symbol, getProject());
 	}
@@ -135,6 +149,7 @@ public class HistFunction extends AbstractTreeElement {
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement#getSourcePath()
 	 */
+	@Override
 	public String getSourcePath() {
 		return ((HistRoot)getRoot()).decoder.getFileName(symbol);
 	}
diff --git a/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/HistLine.java b/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/HistLine.java
index c72cf37d32..d17317cc87 100644
--- a/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/HistLine.java
+++ b/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/HistLine.java
@@ -39,11 +39,21 @@ public class HistLine extends AbstractTreeElement {
 	void addBucket(Bucket b) {
 		this.children.add(new HistBucket(this,b));
 	}
+	
+	/*
+	 * (non-Javadoc)
+	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement#hasChildren()
+	 */
+	@Override
+	public boolean hasChildren() {
+		return !children.isEmpty();
+	}
 
 	/*
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.TreeElement#getChildren()
 	 */
+	@Override
 	public LinkedList<? extends TreeElement> getChildren() {
 		return this.children;
 	}
@@ -52,6 +62,7 @@ public class HistLine extends AbstractTreeElement {
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement#getCalls()
 	 */
+	@Override
 	public int getCalls() {
 		return -1;
 	}
@@ -60,6 +71,7 @@ public class HistLine extends AbstractTreeElement {
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.TreeElement#getName()
 	 */
+	@Override
 	public String getName() {
 		String functionName = getParent().getName();
 		return functionName + " (" + getParent().getParent().getName() + ":" + this.line + ")";
@@ -69,6 +81,7 @@ public class HistLine extends AbstractTreeElement {
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement#getSamples()
 	 */
+	@Override
 	public int getSamples() {
 		int ret = 0;
 		for (HistBucket b : children) {
@@ -82,6 +95,7 @@ public class HistLine extends AbstractTreeElement {
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement#getSourceLine()
 	 */
+	@Override
 	public int getSourceLine() {
 		return this.line;
 	}
@@ -90,6 +104,7 @@ public class HistLine extends AbstractTreeElement {
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement#getSourcePath()
 	 */
+	@Override
 	public String getSourcePath() {
 		return getParent().getParent().getSourcePath();
 	}
diff --git a/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/HistRoot.java b/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/HistRoot.java
index 33dae2aa6a..7761dc0f14 100644
--- a/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/HistRoot.java
+++ b/gprof/org.eclipse.linuxtools.gprof/src/org/eclipse/linuxtools/internal/gprof/view/histogram/HistRoot.java
@@ -73,11 +73,21 @@ public class HistRoot extends AbstractTreeElement {
 		HistFile hf = getChild(path);
 		hf.addCallGraphNode(node);
 	}
+	
+	/*
+	 * (non-Javadoc)
+	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement#hasChildren()
+	 */
+	@Override
+	public boolean hasChildren() {
+		return !children.isEmpty();
+	}
 
 	/*
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.TreeElement#getChildren()
 	 */
+	@Override
 	public LinkedList<? extends TreeElement> getChildren() {
 		return this.children;
 	}
@@ -86,15 +96,16 @@ public class HistRoot extends AbstractTreeElement {
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.TreeElement#getName()
 	 */
+	@Override
 	public String getName() {
 		return "Summary";
 	}
-	
 
 	/* 
 	 * (non-Javadoc)
 	 * @see org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement#getCalls()
 	 */
+	@Override
 	public int getCalls() {
 		return -1;
 	}