Fix exception parsing (#2197)

Author: trask

agent/agent-tooling/src/main/java/com/microsoft/applicationinsights/agent/internal/exporter/Exceptions.java

@@ -36,7 +36,7 @@ public static List<TelemetryExceptionDetails> minimalParse(String str) {
     int current;
     for (current = 0; current < length; current++) {
       char c = str.charAt(current);
-      if (c == ':') {
+      if (c == ':' && separator == -1) {
         separator = current;
       } else if (c == '\r' || c == '\n') {
         break;

agent/agent-tooling/src/test/java/com/microsoft/applicationinsights/agent/internal/exporter/ExceptionsTest.java

@@ -47,6 +47,22 @@ void testMinimalParse() {
     assertThat(details.getMessage()).isEqualTo("test");
   }
 
+  @Test
+  public void testMinimalParseWithColonInMessage() {
+    // given
+    String str = toString(new IllegalStateException("hello: world"));
+
+    // when
+    List<TelemetryExceptionDetails> list = Exceptions.minimalParse(str);
+
+    // then
+    assertThat(list.size()).isEqualTo(1);
+
+    TelemetryExceptionDetails details = list.get(0);
+    assertThat(details.getTypeName()).isEqualTo(IllegalStateException.class.getName());
+    assertThat(details.getMessage()).isEqualTo("hello: world");
+  }
+
   @Test
   void testMinimalParseWithNoMessage() {
     // given