Use `safeHasSuperType` instead of `isSubType`

`isSubType` may fail on certain class lookup problems, even on classes
unrelated to given instrumentation, preventing instrumentation from
being applied.

dd-java-agent/instrumentation/classloaders/src/main/java/datadog/trace/instrumentation/classloaders/ClassLoaderInstrumentation.java

@@ -1,7 +1,6 @@
 package datadog.trace.instrumentation.classloaders;
 
 import static net.bytebuddy.matcher.ElementMatchers.isConstructor;
-import static net.bytebuddy.matcher.ElementMatchers.isSubTypeOf;
 
 import com.google.auto.service.AutoService;
 import datadog.opentracing.DDTracer;
@@ -28,12 +27,12 @@ public final class ClassLoaderInstrumentation extends Instrumenter.Default {
 
   @Override
   public ElementMatcher typeMatcher() {
-    return isSubTypeOf(ClassLoader.class);
+    return safeHasSuperType(named("java.lang.ClassLoader"));
   }
 
   @Override
   public Map<ElementMatcher, String> transformers() {
-    Map<ElementMatcher, String> transformers = new HashMap<>();
+    final Map<ElementMatcher, String> transformers = new HashMap<>();
     transformers.put(isConstructor(), ClassloaderAdvice.class.getName());
     return transformers;
   }

dd-java-agent/instrumentation/http-url-connection/src/main/java/datadog/trace/instrumentation/http_url_connection/HttpUrlConnectionInstrumentation.java

@@ -1,9 +1,9 @@
 package datadog.trace.instrumentation.http_url_connection;
 
+import static datadog.trace.agent.tooling.ByteBuddyElementMatchers.safeHasSuperType;
 import static io.opentracing.log.Fields.ERROR_OBJECT;
 import static net.bytebuddy.matcher.ElementMatchers.isMethod;
 import static net.bytebuddy.matcher.ElementMatchers.isPublic;
-import static net.bytebuddy.matcher.ElementMatchers.isSubTypeOf;
 import static net.bytebuddy.matcher.ElementMatchers.nameStartsWith;
 import static net.bytebuddy.matcher.ElementMatchers.named;
 import static net.bytebuddy.matcher.ElementMatchers.not;
@@ -43,7 +43,7 @@ public class HttpUrlConnectionInstrumentation extends Instrumenter.Default {
 
   @Override
   public ElementMatcher typeMatcher() {
-    return isSubTypeOf(HttpURLConnection.class)
+    return safeHasSuperType(named("java.net.HttpURLConnection"))
         // This class is a simple delegator. Skip because it does not update its `connected` field.
         .and(not(named("sun.net.www.protocol.https.HttpsURLConnectionImpl")));
   }
@@ -58,7 +58,7 @@ public class HttpUrlConnectionInstrumentation extends Instrumenter.Default {
 
   @Override
   public Map<ElementMatcher, String> transformers() {
-    Map<ElementMatcher, String> transformers = new HashMap<>();
+    final Map<ElementMatcher, String> transformers = new HashMap<>();
     transformers.put(
         isMethod()
             .and(isPublic())
@@ -177,7 +177,7 @@ public class HttpUrlConnectionInstrumentation extends Instrumenter.Default {
     private static final Map<HttpURLConnection, HttpURLState> STATE_MAP =
         Collections.synchronizedMap(new WeakHashMap<HttpURLConnection, HttpURLState>());
 
-    public static HttpURLState get(HttpURLConnection connection) {
+    public static HttpURLState get(final HttpURLConnection connection) {
       HttpURLState state = STATE_MAP.get(connection);
       if (state == null) {
         // not thread-safe, but neither is HttpURLConnection
@@ -195,8 +195,8 @@ public class HttpUrlConnectionInstrumentation extends Instrumenter.Default {
       return hasDoneIO;
     }
 
-    public void setHasDoneIO(boolean value) {
+    public void setHasDoneIO(final boolean value) {
-      this.hasDoneIO = value;
+      hasDoneIO = value;
     }
   }
 }

dd-java-agent/instrumentation/jdbc/src/main/java/datadog/trace/instrumentation/jdbc/ConnectionInstrumentation.java

@@ -1,8 +1,9 @@
 package datadog.trace.instrumentation.jdbc;
 
+import static datadog.trace.agent.tooling.ByteBuddyElementMatchers.safeHasSuperType;
 import static net.bytebuddy.matcher.ElementMatchers.isInterface;
-import static net.bytebuddy.matcher.ElementMatchers.isSubTypeOf;
 import static net.bytebuddy.matcher.ElementMatchers.nameStartsWith;
+import static net.bytebuddy.matcher.ElementMatchers.named;
 import static net.bytebuddy.matcher.ElementMatchers.not;
 import static net.bytebuddy.matcher.ElementMatchers.returns;
 import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
@@ -10,7 +11,6 @@ import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
 import com.google.auto.service.AutoService;
 import datadog.trace.agent.tooling.Instrumenter;
 import datadog.trace.bootstrap.JDBCMaps;
-import java.sql.Connection;
 import java.sql.PreparedStatement;
 import java.util.HashMap;
 import java.util.Map;
@@ -26,7 +26,7 @@ public final class ConnectionInstrumentation extends Instrumenter.Default {
 
   @Override
   public ElementMatcher typeMatcher() {
-    return not(isInterface()).and(isSubTypeOf(Connection.class));
+    return not(isInterface()).and(safeHasSuperType(named("java.sql.Connection")));
   }
 
   @Override

dd-java-agent/instrumentation/jdbc/src/main/java/datadog/trace/instrumentation/jdbc/PreparedStatementInstrumentation.java

@@ -1,10 +1,11 @@
 package datadog.trace.instrumentation.jdbc;
 
+import static datadog.trace.agent.tooling.ByteBuddyElementMatchers.safeHasSuperType;
 import static io.opentracing.log.Fields.ERROR_OBJECT;
 import static net.bytebuddy.matcher.ElementMatchers.isInterface;
 import static net.bytebuddy.matcher.ElementMatchers.isPublic;
-import static net.bytebuddy.matcher.ElementMatchers.isSubTypeOf;
 import static net.bytebuddy.matcher.ElementMatchers.nameStartsWith;
+import static net.bytebuddy.matcher.ElementMatchers.named;
 import static net.bytebuddy.matcher.ElementMatchers.not;
 import static net.bytebuddy.matcher.ElementMatchers.takesArguments;
 
@@ -36,7 +37,7 @@ public final class PreparedStatementInstrumentation extends Instrumenter.Default
 
   @Override
   public ElementMatcher typeMatcher() {
-    return not(isInterface()).and(isSubTypeOf(PreparedStatement.class));
+    return not(isInterface()).and(safeHasSuperType(named("java.sql.PreparedStatement")));
   }
 
   @Override

dd-java-agent/instrumentation/jdbc/src/main/java/datadog/trace/instrumentation/jdbc/StatementInstrumentation.java

@@ -1,10 +1,11 @@
 package datadog.trace.instrumentation.jdbc;
 
+import static datadog.trace.agent.tooling.ByteBuddyElementMatchers.safeHasSuperType;
 import static io.opentracing.log.Fields.ERROR_OBJECT;
 import static net.bytebuddy.matcher.ElementMatchers.isInterface;
 import static net.bytebuddy.matcher.ElementMatchers.isPublic;
-import static net.bytebuddy.matcher.ElementMatchers.isSubTypeOf;
 import static net.bytebuddy.matcher.ElementMatchers.nameStartsWith;
+import static net.bytebuddy.matcher.ElementMatchers.named;
 import static net.bytebuddy.matcher.ElementMatchers.not;
 import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
 
@@ -37,7 +38,7 @@ public final class StatementInstrumentation extends Instrumenter.Default {
 
   @Override
   public ElementMatcher typeMatcher() {
-    return not(isInterface()).and(isSubTypeOf(Statement.class));
+    return not(isInterface()).and(safeHasSuperType(named("java.sql.Statement")));
   }
 
   @Override