logic: add lots of Java indexing fixes

* update JavaSymbolSolver to version 0.6.0
* moved to Javaparser 3.3.0
* fixed solving type parameter names in symbols solved in jar files
* implemented ignoring name contexts in javassist and jre based method signatures to break infinite recursion

java_indexer/src/main/java/com/sourcetrail/name/JavaDeclName.java

@@ -8,9 +8,13 @@ public class JavaDeclName
 	private String m_name = "";
 	private List<String> m_typeParameterNames = null;
 	
+	public static JavaDeclName unsolved()
+	{
+		return new JavaDeclName("unsolved-symbol");
+	}
+	
 	public static JavaDeclName fromDotSeparatedString(String s)
 	{
-		
 		JavaDeclName declName = null;
 
 		int separatorIndex = s.lastIndexOf('.');

java_indexer/src/main/java/com/sourcetrail/name/JavaFunctionDeclName.java

@@ -1,12 +1,13 @@
 package com.sourcetrail.name;
 
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Optional;
 
 public class JavaFunctionDeclName extends JavaDeclName
 {
 	private JavaTypeName m_returnTypeName = null;
-	private List<JavaTypeName> m_parameterNames = null;
+	private List<JavaTypeName> m_parameterNames = new ArrayList<>();
 	private boolean m_isStatic = false;
 	
 	public JavaFunctionDeclName(String name, JavaTypeName returnTypeName, List<JavaTypeName> parameterNames, boolean isStatic)
@@ -14,7 +15,7 @@ public class JavaFunctionDeclName extends JavaDeclName
 		super(name);
 		
 		m_returnTypeName = returnTypeName;
-		m_parameterNames = parameterNames;
+		if (m_parameterNames != null) m_parameterNames = parameterNames;
 		m_isStatic = isStatic;
 	}
 	

java_indexer/src/main/java/com/sourcetrail/name/JavaTypeName.java

@@ -8,6 +8,11 @@ public class JavaTypeName
 	private String m_name = "";
 	private List<JavaTypeName> m_typeArgumentNames = null;
 
+	public static JavaTypeName unsolved()
+	{
+		return new JavaTypeName("unsolved-type", null);
+	}
+	
 	public static JavaTypeName fromDotSeparatedString(String s) 
 	{
 		JavaTypeName typeName = null;