tmf.filter: Bug 535397 Catch pattern syntax exception and return null

Reviewed-on: https://git.eclipse.org/r/123291
Reviewed-by: Bernd Hufmann <bernd.hufmann@ericsson.com>
Tested-by: Bernd Hufmann <bernd.hufmann@ericsson.com>
Tested-by: CI Bot
(cherry picked from commit 63f4a5ce3945ccfd9122caf787b29eafa61b692a)

Change-Id: I5315e97385aa0d292e9333676907cb28063b7ac8
Signed-off-by: Jean-Christian Kouame <jean-christian.kouame@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/123933
Tested-by: CI Bot
Reviewed-by: Bernd Hufmann <bernd.hufmann@ericsson.com>
Tested-by: Bernd Hufmann <bernd.hufmann@ericsson.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/tmf/org.eclipse.tracecompass.tmf.core/src/org/eclipse/tracecompass/internal/provisional/tmf/core/model/filter/parser/FilterSimpleExpressionCu.java b/tmf/org.eclipse.tracecompass.tmf.core/src/org/eclipse/tracecompass/internal/provisional/tmf/core/model/filter/parser/FilterSimpleExpressionCu.java
index 4b53dda129..60f39fe8fe 100644
--- a/tmf/org.eclipse.tracecompass.tmf.core/src/org/eclipse/tracecompass/internal/provisional/tmf/core/model/filter/parser/FilterSimpleExpressionCu.java
+++ b/tmf/org.eclipse.tracecompass.tmf.core/src/org/eclipse/tracecompass/internal/provisional/tmf/core/model/filter/parser/FilterSimpleExpressionCu.java
@@ -12,6 +12,7 @@ import java.util.Objects;
 import java.util.function.BiFunction;
 import java.util.function.BiPredicate;
 import java.util.regex.Pattern;
+import java.util.regex.PatternSyntaxException;
 
 import org.antlr.runtime.tree.CommonTree;
 import org.eclipse.tracecompass.internal.tmf.core.Activator;
@@ -155,8 +156,13 @@ public class FilterSimpleExpressionCu {
 
         private static BiFunction<String, String, Boolean> matchFunc() {
             return (i, j) -> {
-                Pattern filterPattern = Pattern.compile(j);
-                return filterPattern.matcher(i).find();
+                try {
+                    Pattern filterPattern = Pattern.compile(j);
+                    return filterPattern.matcher(i).find();
+                } catch (PatternSyntaxException e) {
+                    Activator.logWarning("The regex syntax is invalid"); //$NON-NLS-1$
+                    return false;
+                }
             };
         }