Merge pull request #249 from C-Otto/docu-fixes

Implementation documentation fixes.

2 files changed, 7 insertions, 2 deletions

diff --git a/org.jacoco.core/src/org/jacoco/core/internal/flow/LabelFlowAnalyzer.java b/org.jacoco.core/src/org/jacoco/core/internal/flow/LabelFlowAnalyzer.java
index 36caa44a..dd32a5f9 100644
--- a/org.jacoco.core/src/org/jacoco/core/internal/flow/LabelFlowAnalyzer.java
+++ b/org.jacoco.core/src/org/jacoco/core/internal/flow/LabelFlowAnalyzer.java
@@ -63,8 +63,13 @@ public final class LabelFlowAnalyzer extends MethodVisitor {
 	@Override
 	public void visitTryCatchBlock(final Label start, final Label end,
 			final Label handler, final String type) {
-		// Enforce probes at the beginning and end of the block:
+		// Enforce probe at the beginning of the block. Assuming the start of
+		// the block already is successor of some other code, adding a target
+		// makes the start a multitarget. However, if the start of the block
+		// also is the start of the method, no probe will be added.
 		LabelInfo.setTarget(start);
+
+		// Mark exception handler as possible target of the block
 		LabelInfo.setTarget(handler);
 	}
 
diff --git a/org.jacoco.core/src/org/jacoco/core/internal/flow/LabelInfo.java b/org.jacoco.core/src/org/jacoco/core/internal/flow/LabelInfo.java
index 21c5d31a..6edb2382 100644
--- a/org.jacoco.core/src/org/jacoco/core/internal/flow/LabelInfo.java
+++ b/org.jacoco.core/src/org/jacoco/core/internal/flow/LabelInfo.java
@@ -76,7 +76,7 @@ public final class LabelInfo {
 	/**
 	 * Checks whether multiple control paths lead to a label. Control flow path
 	 * to a certain label are: jump targets, exception handlers and normal
-	 * control flow from its predecessor instruction (unless this a
+	 * control flow from its predecessor instruction (unless this is an
 	 * unconditional jump or method exit).
 	 * 
 	 * @param label